14 best tube amplifier with bluetooth usbs

Product description

The Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier successfully employs contemporary amp technology that faithfully pay homage to classic amp design of the past. Utilizing the efficiency of solid-state class AB amp topology and a vacuum tube preamp section, the HTA100BT authentically reproduces the warmth and character of tube amps with the flexibility the modern world expects.

• Authentic vacuum tube warmth and character with class AB amplifier efficiency produces an articulate and natural sonic experience
• Powerful 50 watts per channel of audiophile fidelity that is sure to please even the most discerning ear
• Convenient input connections including USB, optical, coaxial, phono, stereo RCA, and Bluetooth V5
• Mono RCA subwoofer output gives you the ability to enjoy a 2.1 system when connected to an active sub
• Brushed aluminum housing with vintage front panel VU meters lends a clean, modern look with a nod to classic aesthetics

User questions & answers

Question:	I have a mcintosh mx113 solid state preamp receiver. I want a tube power amp that can give me surround sound. 1 center speaker 2 floor Will this work
Answer:	Just make sure the front of the detector is not completely obscured and you can mount it anywhere you want.
Question:	Is this amplfier safe to run @ a 6 Ohm load
Answer:	I have never had a problem with the speakers. The quality is great and I am very happy with this item.
Question:	I've auditioned other tube amps of virtually identical design but no fan. is the fan necessary with this amp? it's loud. should i unhook it
Answer:	Yes, I set mine up with beeping feature, it's a lot better warning system than the voice alert!
Question:	Does both aux run through the preamp
Answer:	Hi! There is not a visor clip made for this unit. What I would do is go to Hobby Lobby and buy a magnet the size where the original bracket mounting fits. Then I would go on Ebay and look under radar mounts and find one that fits on a visor. Take the magnet and use super glue and glue the magnet to the mount. You may have to do some modifications but it will work. If I have time I could make you one. This should work for you. It is an easy fix. Thanks for your question and please don't hesitate to contact me if you need more help. FD

• P1 is a Bluetooth vacuum & valve tube preamplifier and headphone amplifier. Headphone output is 160mW @32Ω and is suitable for 32~300Ω headphones and headsets.
• Classic 6J5 vacuum & valve tube can provide warm retro tube sound. It can be replaced by 6J1, 6J4, GE5654, 6AK5, 6Ж1n-EB.
• It supports Bluetooth/USB/RCA inputs from various devices like iPod, Phone, MP3, TV, Blu-ray players, Echo Dot, CD players, computer etc.
• Bluetooth 5.0 supports APT-X, APT-X LL lossless transmission. PC-USB supports 24bit 192KHz and is compatible with Windows/Mac/Linux system
• Treble & bass control can achieve different sound style. Bypass function can suspend the tone control circuit to achieve purer music experience.

User questions & answers

Question:	Can this pre-amp stay on for long periods of time without damaging the tubes? Or can the tubes be switched off & still pass through to my amp
Answer:	Tubes last around 5000 hours. They can be on all the time.
Question:	Can you run this amp with powered speakers
Answer:	Confirmed working fine with JBL Professional LSR310S Powered Subwoofer and JBL LSR305 powered monitors. Sound does seems a bit tinny, perhaps better tubes would help.
Question:	Is this a DAC as well as a preamp
Answer:	Description states a CM6642 dac. How it's wired up will make a difference, have one on order.
Question:	Can I send audio out from the rear usb port into a computer usb to make recordings on audacity
Answer:	No. the USB port is only for power and receiving data from the PC. It does not send data to the the PC at all.

Product features

Parameters

• Chip Architecture: CM6642+QCC3008+NE5532+classic 47
• PC-USB Input Sampling Frequency: 192K/24Bit
• THD: 0.01% , SNR: 103dB
• PC-USB System supported: XP/W7/W8/W10/MAC/Linux
• Bluetooth VER: 5.0
• Headphone matching impedance: 32-300Ω
• Headphone Max power output: 160mW 32Ω load
• Bass & Treble Range: ±6dB
• RCA output level: 2.3V
• Frequency Range: 20Hz-20kHz(±3dB)

Bluetooth / USB / RCA Inputs & Preamplifier & Headphone Amplifier

• Bluetooth vacuum & valve tube preamplifier and headphone amplifier
• Headphone output is 160mW @32Ω and is suitable for 32~300Ω headphones and headsets
• Support Bluetooth/USB/RCA inputs from various devices like iPod, Phone, MP3, TV, Blu-ray players, Echo Dot, CD players, computer etc
• Bluetooth 5.0 supports APT-X, APT-X LL lossless transmission
• PC-USB supports 24bit 192KHz and is compatible with Windows/Mac/Linux system

Warm Tube Sound & Replaceable Vacuum Tube & LED Selector

• Classic 6J5 vacuum & valve tube
• Warm retro tube sound
• Can be replaced by 6J1, 6J1, 6J4, GE5654, 6AK5, 6Ж1n-EB
• Tube light selector (blue / orange)

Treble / Bass Control & Bypass Function

• Support treble and bass control
• Bypas function (tone control can be turned off to achieve purer music experience)
• Bluetooth / USB / RCA input selector

Product description

PAY ATTENTION:

1. This product is a pre-amplifier ! It is not a power amplifier and NOT COMPATIBLE WITH PHONO OR TURNTABLE.

2. Low-quality audio lines will generate noise as a result.

3. The headphone jack output is prior, stereo RCA output will auto disconnected when connecting headphones to its 3.5mm output.

4.Need to connect a power amplifier or active multimedia speaker.

5. Please make sure connect the preamplifier first and THEN turn the power on.



Features

1.Bluetooth vacuum & valve tube preamplifier and headphone amplifier.

2.Headphone output is 160mW @32Ω and is suitable for 32~300Ωheadphones and headsets

3.Bluetooth 5.0 function, supports APT-X, APT-X LL lossless transmission.

4.Support Bluetooth/USB/RCA inputs from various devices like iPod, Phone, MP3, TV, Blu-ray players, Echo Dot, CD players, computer etc. 5.Treble and Bass Control function, more play-ability.

6.Replaceable Vacuum Tubes, can use 6K4/6J1/6J2/6J4/GE5654/6AK5 vacuum tubes, etc



Specifications:

Audio input: Bluetooth / USB / Stereo RCA

Audio output: Stereo RCA / 3.5mm headphone jack

Bluetooth version: 5.0 (support APTX-LL)

Chipset: QCC3008+CM6642+NE5532P

PC-USB input sampling frequency: 24Bit/192K

PC-USB System supported: XP/W7/W8/W10/MAC/linux

Frequency Range20Hz-20kHz(±3dB)

THD: 0.1%

SNR: ≥98dB

RCA output level: 2V

Bass & Treble range: ±6dB

Headphone matched impedance: 32-300Ω

Headphone output power: 160mW/32Ω

Power Supply: 12V/1.5A

Dimensions(W*D*H): 130*128*30mm / 5.12*5.04*1.18in

Package dimensions(W*D*H): 300*220*70mm / 11.81*8.66*2.76in

Net weight: 470g / 1.03lb

Package weight: 770g/ 1.76lb



Package:

1 x Tube-T5C Preamplifier

2 x 6Ж1n-EB Vacuum Tubes

1 x PC-USB Cable

1 x Bluetooth RF Antenna

1 x Power Adapter

1 x User Manual

• Upgrade Version for Tube-T1 Preamp: Tube-T5C add Bluetooth 5.0 input, USB input and support 160mW @32Ω headphone output. It is suitable for 32~300Ω headphones and headsets. Not only a vacuum preamp but also a headphone amplifier. Note: NOT Compatible with turntable.
• Vacuum Tubes Replaceable Design: Come with 2pcs 6Ж1n-EB vacuum tubes that provide warm retro tube sound. Also, you can replace the tubes to enjoy different sound, 6j1,6j2,6J4, 6J5, GE5654 and 6AK5 tubes are suitable for this preamp.
• Wired & Wireless Connect are Available: More input selection allows you connect more devices with this preamp. Bluetooth/RCA and USB connection, you can use iPod, phone, computer, TV, CD player, DAC and so on.
• Mature Circuit & High-quality Performance: Adopting QCC3008 Bluetooth chip supports APTX-LL lossless transmission, CM6642 decoding chip supports 24bit/192KHz and compatible with Windows/Mac/Linux system.
• Perfect Design & Attractive Appearance: with treble and bass control to enjoy more smooth and delicate sound. Fashionable CNC machined black aluminum alloy chassis combined with warm light from vintage tube looks amazing, very suitable for the customers who pursue wonderful auditory and visual enjoyment.

Product description

Default 6K4 tubes, and can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles.



U-disk and TF card inputs support MP3 and other lossless format such as APE, FLAC, WAV, WMA. No need for any driver, plug and play, convenient to enjoy fun even on the road or outdoors.



Warm tips:

1. P2 is a tube preamp which needs to work with amplifiers or active speakers, cannot drive passive speakers or used with turntables directly. In RCA input mode, the previous / next song function is invalid.

2. The USB interface only supports U-disk and USB 2.0 thumbdrive, not support PC-USB. And the RCA and 3.5mm headphone jack can output at the same time.

3. Want upgraded GE5654 vacuum tube please visit: https://www.amazon.com/dp/B088RBVVF3.



Parameters:

Audio input: Bluetooth/Stereo RCA/U-disk/TF Card

Audio output: Stereo RCA / 3.5mm headphone jack

Supported formats of U-disk and TF Card: MP3 / WMA / APE / FLAC / WAV

Max storage of U-disk: 32G

Max storage of TF card: 32G

Tube model: 6K4*2

Frequency Response: ±3dB (20Hz-20KHz)

Treble/Mid/Bass range: ±6dB

Input sensitivity: 0.775V

THD: 0.05%

SNR: ≥98dB

Headphone Output Power: 100mW/32Ω

Matched headphone impedance: 16-64Ω

Working voltage: DC 12V

Dimensions(W*D*H): 115*128*33mm / 4.53*5.04*1.30in

Net weight: 420g / 0.93lb

Package weight: 700g / 1.54lb



Packing List:

1 x P2 Preamp

2 x 6K4 Tube

1 x DC12V Power Adaptor

1 x Remote Control (without batteries)

1 x Bluetootn Antenna

1 x Manual

• Multiple audio inputs: with Bluetooth/RCA/U-disk/TF card inputs, can be perfectly compatible with iPod, Phone, MP3, TV, CD players, laptop, desktop computer or other streaming media players etc., satisfy most requirements of common home audio system use.
• ① Tube preamp: connected between audio source and amplifier or active speaker to greatly improve the sound quality. ② Headphone amplifier, convenient to listen to lossless music alone or at night. The RCA and 3.5mm headphone jack can output at the same time to meet more needs. ③ Digital player: with U-disk and TF card inputs.
• HiFi clear sound with tone control and reasonable circuit layout. Adopting vacuum tubes design to filter out the digital sounds of common sound sources, making the sound warm and sweet, full and mellow, much softer and more listenable.
• Using NE5532 op amp for tone control, treble/mid/bass can be adjusted separately, easy to adjust more delicate sounds of different styles. Pluggable op amp socket design, easy to change other op amps to enjoy different sounds.
• Mini size and exquisite appearance, black aluminum case make it more fashionable and powerful. With power/input mode indicators to clearly show the working status in real time, and full-function remote control makes the operation much easier, very suitable for home and desktop audio system use.

User questions & answers

Question:	Are the line level outputs for connection to another preamp? In other words can this be used as an audio source
Answer:	Before you press button to order scroll down until you see (frequently bought together) thats the kind of oil to use, plus you can buy separate, scroll down farther, have same kind of oil, just sold separately.
Question:	Can it connect to Bluetooth speakers
Answer:	Unfortunately it does not come installed, and that is perhaps the most challenging part of the whole process. Just read the instructions carefully and take your time getting it with the right amount of tension. Also this unit does not come with specific oil (Bar & Chain oil) needed for the operation. Once put together, it will cut, it will slice, it will dice like Edward Scissorhands
Question:	Can this be used as a phono preamp for turntables
Answer:	If you are asking about the ability to detach and use the chain saw without the pole, the answer is NO! There are other models suck as the SWJ807E that are detachable to use as both a chain saw and a pole saw. Hope this answers your question! AA Plus
Question:	Whats the difference between the p1 and p2 hifi tube preamp from douk audio
Answer:	Before you order this scroll down until you see (frequently buy together) this is kind of oil to use, scroll farther down buy oil separately.

• Multiple audio input methods,It Support Bluetooth 5.0/PC-USB/RCA inputs from various devices like iPod, Phone, MP3, TV, DVD players, laptop, desktop computer or other streaming media players etc.,It's a nice vacuum Headphone tube preamp exclusively designed for the customers who pursue HiFi sound!
• Tube T6 PRO be used as a headphone tube preamplifier,Can Enjoy high-quality lossless music at any time,RCA/3.5mm headphone output(With priority),RCA output to the powered speaker,amplifier & passive speaker,Headphone output is suitable for 16~300Ω headphones and headset
• QCC3008 Bluetooth 5.0,Support APT-X,APT-X LL lossless transmission,Signal transmission faster and stable,let your enjoy the HiFi sound!
• Adopt 6Ж1п-EB tube vacuum design for easy replacement(such as 6J1, 6J2, 6AK5, 6AK5W, 6F31 ,6BA6, 6K4п, GE5654, 6Ж1п,etc)provide warm retro tube sound,With independent gain adjustment design for treble and bass
• All aluminum alloy shell,heavy gold PCB,Build quality is surprisingly solid,Nice touch!With optimal integrated circuit to get dynamic and sweet sound.(Can offer technical support and warranty service!Pls Ask Me:www.amazon.com/hz/help/contact/A3BG62S1F23IH5# .Or leave any of your instant messaging account and I'll contact you.thanks!)

User questions & answers

Question:	Will this work as a usb audio interface
Answer:	This PC-USB only can connect computer, not USB port, also can't use U-disk,pls see the connect of the picture,hope it can help you.thanks
Question:	Will this work as an audio interface and record a mic over usb from the rca input
Answer:	Sorry, this tube preamlifier Headphone output is suitable for 16~300Ω headphones and headsets(With priority) ,it doesn't use for as a an audio interface and record a mic,any other problem,pls contact us by email,will offer technical support

Product features

Use our AIYIMA Tube T6 PRO preamp ,Meet your a variety of application scenarios,enjoy the HiFi music!(This is a Tube Preamplifier,Not a Amplifier)

Product description

Rockville blutubeled audiophile grade tube amplifier with Bluetooth. Black color with blue illuminated tubes and blue illuminated knobs. 25 watts x 2 RMS @ 8 Ohm. 35 Watts x 2 RMS @ 4 Ohm. set of RCA inputs to connect to any audio device like a TV, laptop, or MP3 player, etc. Optical input. Coaxial input. Sub output. Tube Amps do not hard-clip even at high volumes and are extremely efficient. Due to this the amp sounds more like double the rated power! . Built in Bluetooth with 33 foot range. Built-in preamplifier. Headphone output. Vu meter. Adjustable bass and treble (2 band equalizer). USB input for music files from USB thumb drive. Rear speaker terminals: banana plug/ binding post outputs for 2 speakers. Frequency response (3dB): 22hz-20khz. Input impedance: 47KO. Input sensitivity: 300mV. Output Impendence: 4-8ohm. Total harmonic distortion): ≤ 0. 02%. Signal-to-Noise ratio(s/N): ≥ 86dB. Bluetooth: 2. 1+Edr. Usb: supports WAV/MP3/WMA/APE/FLAC. 110V. Unit weight: 6. 6 lbs. Unit dimension: 10. 6"X10. 2"X5. 1"

• Rockville BluTube LED 70W Bluetooth tube amplifier/home stereo receiver with blue Illumination, optical input, Sub output
• Rockville blutubeled audiophile grade tube amplifier with Bluetooth. Black Color with blue illuminated tubes and blue illuminated knobs. 25 watts x 2 RMS @ 8 ohm. 35 Watts x 2 RMS @ 4 ohm. set of RCA inputs to connect to any audio device like a TV, laptop, or MP3 player, etc. Optical input.
• Coaxial input. Sub output. Tube Amps do not hard-clip even at high volumes and are extremely efficient. Due to this the amp sounds more like double the rated power! . Built in Bluetooth with 33 foot range. Built-in preamplifier. Headphone output. Vu meter. Adjustable bass and treble (2 band equalizer).
• Usb input for music files from USB thumb drive. Rear speaker terminals: banana Plug/ binding post outputs for 2 speakers. Frequency response (3dB): 22hz-20khz. Input impedance: 47Ko. Input sensitivity: 300mV. Output Impendence: 4-8ohm.
• Total Harmonic distortion): ≤0. 02%. Signal-to-Noise ratio(s/n): ≥86dB. Bluetooth: 2. 1+Edr. Usb: Supports WAV/MP3/WMA/APE/FLAC. 110V. Unit weight: 6. 6 lbs. Unit dimension: 10. 6"X10. 2"X5. 1"

User questions & answers

Question:	Can I be able to play bluetooth and wired speakers simultaneously
Answer:	Hello. It can do that if you want. But it is already a preamp. We don't think two preamps work together can improve the sound.
Question:	What size is the headphone jack
Answer:	Just looked at it and I don't believe you can. Only options is Stereo RCA or the 3.5mm headphone jack. The bluetooth is only for audio input.
Question:	Do the “blutubes” have blue leds in them? i really want a retro look and am trying to avoid any rgb. thanks
Answer:	No, it has line RCA inputs only. it does not have an MM or MC input, which would have higher Gain and the RIAA equlization needed for phono inputs.
Question:	Will I need a phono preamp with this unit to hook up my turntable
Answer:	The P1 has a convenient manual volume control knob on top, no remote control, P2 has a remote control and a micro SD card slot. P1 has USAB-B, the P2 a USB-A input. Both have RCA inputs and outputs for use as a preamp. The P1 bass and treble control (which can be bypassed by switch), the P2 has treble, midrange and treble control by knob, but the Volume control is only possible via remote or push knobs. Most important: both have excellent Bluetooth5.0 receivers. They both sound superb as well via Bluetooth as RCA input. Upgrade to GE5654 tubes is defintely recommended, better definition, lower noise. The P1 allows high and low gain setting for headphones and allows full bypass of the tone controls. I am using the P1 on my desktop control preamp and Headphone Amp; the manual volume control is just more conevinent and more direct; the sound is a notch up form the P2. The manual control is just more convenient. The P2 I use in another application where the remote control is more convenient. The remote control can also advance tracks on an SD chip (may be also on Android phone). As a Preamp the P2 has more features, the P1 is the more consequent Headphone amp. They both as an incredible value for the price. I also have an ifi xCAN, which is a notch up in performance and is portable, but also 3 times the price.

Product features

Rockville BluTube LED 70w Bluetooth Tube Amplifier/Home Stereo Receiver With Blue Illumination, Optical Input, Sub Output

• Tube Amplifier / Receiver
• 5 Foot RCA to 3.5MM cable
• 5.5 Foot Power cable

Features:

• Rockville BluTubeLED Audiophile grade tube amplifier with Bluetooth
• Black color with blue illuminated tubes and blue illuminated knobs
• 25 watts x 2 RMS @ 8 ohm
• 35 watts x 2 RMS @ 4 ohm
• set of RCA inputs to connect to any audio device like a TV, Laptop, or MP3 player, etc
• Optical input
• Coaxial input
• Sub output
• Tube amps do not hard-clip even at high volumes and are extremely efficient. Due to this the amp sounds more like double the rated power!
• Built in Bluetooth with 33 foot range
• Built-in Preamplifier
• Headphone output
• VU meter

Product description

The Dayton Audio HTA20BT combines the efficiency and power of solid state class D amplifier topology with the warmth and character of a vacuum tube preamp section. The results are a delightfully articulate and natural sound that is sure to please even the most refined ears.

• Tube warmth, class D efficiency
• Bluetooth 4.2, Aux, and USB inputs
• Subwoofer output for adding an active subwoofer
• High quality headphone amplifier built in
• Extremely low THD <0.1% @ rated power

User questions & answers

Question:	I couldn't quite tell from the picture but what size/plug is the headphone jack
Answer:	I don't think you can. The input selector switch has 3 settings for AUX (wired speakers), BT/USB and Optical Coaxial.
Question:	What are the dimensions of the unit
Answer:	I think 3.5 TRS means 3.5mm, which is the standard consumer size of 1/8 inch, used on most cell phones (except newer iPhones, stupid Apple) and portable music players.
Question:	When headphones are plugged in, does it disable the sub out
Answer:	There's no such thing as a blue color in a legit "retro" amplifier -real vacuum tubes glow golden amber/orange.
Question:	Will i be able to plug with into Singapore wall sockets with an adapter safely? Or do i need a power converter too
Answer:	This unit has a tube preamplifier, and a solid state amplifier. However, it doesn’t have a built in phono stage (phono preamplifier). Unless your phono has a built in preamp (like an Audio Technica LP120 or similar), you will need a phono preamp if you want to play your vinyl. Phono preamps are fairly inexpensive in the quality range of this unit, so send Amazon another $20 and get your preamp. Don’t worry about Moving Coil (MC) or Moving Magnet (MM) cartridges. If you use an MC cartridge, you probably aren’t going to buy this amplifier.

Product description

Features:

With 5 kinds of audio input (Bluetooth, USB, Coaxial, Optical, RCA) and 3 kinds of audio output (Banana speakers, subwoofer, 3.5mm headphone), compatible with almost all audio devices such as mobile phone, notebook, PC, PSP, CD players and so on to meet the different needs of home audio systems.

Low-requency signal output is speciallyed designed to connect active subwoofer, strengthen bass sound effects to bring more shocking experience just like in the cinema. With treble and bass control to bring more delicate sound according to your own listening style.

Using 6P1 and 6N1 vacuum tubes, the sound is clear, warm, smooth and delicate, U-disk supporting lossless music formats such as WMA/WNV/MP3/FLAC to provide HiFi enjoyment.

Unique design and attractive appearance, exquisite black lacquered panel and retro vacuum tube are combined to create a luxurious and elegant artistic atmosphere, very suitable for home and desktop audio system use.



Parameters:

Audio input: Bluetooth, USB/U-disk, Coaxial, Optical, RCA

Audio output: speaker jack, 3.5mm headphone jack, subwoofer

U-disk supporting formats: WMA/WNV/MP3/FLAC

Bluetooth version: 4.2

Rated power: 25Wx2

Tube model: 6P1x2+6N1x2

Frequency response: 20HZ-20KHZ

Input impedance: 47

Output impedance: 4-16Ω

Signal to noise ratio: 80DB

Dimensions: 312*270*150mm

Net weight: 4.0KG

Package weight: 5.0KG



Packing List:

1*Tube Amplifier with Power Cord

1*Audio Cable

• MKIII is the upgrade version of our popular MKII. MKIII is added with coaxial and optical inputs as well as active subwoofer output. The circuit design is also upgraded to ensure lower background noise and purer sound.
• With 5 kinds of audio input (Bluetooth, USB, Coaxial, Optical, RCA) and 3 kinds of audio output (Banana speakers, subwoofer, 3.5mm headphone), compatible with almost all audio devices such as mobile phone, notebook, PC, PSP, CD players and so on to meet the different needs of home audio systems.
• Low-requency signal output is speciallyed designed to connect active subwoofer, strengthen bass sound effects to bring more shocking experience just like in the cinema. With treble and bass control to bring more delicate sound according to your own listening style.
• Using 6P1 and 6N1 vacuum tubes, the sound is clear, warm, smooth and delicate, U-disk supporting lossless music formats such as WMA/WNV/MP3/FLAC to provide HiFi enjoyment.
• Unique design and attractive appearance, exquisite black lacquered panel and retro vacuum tube are combined to create a luxurious and elegant artistic atmosphere, very suitable for home and desktop audio system use.

User questions & answers

Question:	Has anyone compared this amp to one of the tripath T-Amps (topping, lepai, indeed, etc
Answer:	Car speakers most definitely can sound good for home use. Nathaniel doesn't have a clue what he is talking about. Will it make all car speakers sound good? No, definitely not. However, there are very high quality speakers out there that are aimed at the automotive market. Are they going to sound like $10,000 a piece speakers, no. However there isn't actually anything that has to be different between a car speaker and a home speaker, other than where it is used. I actually have some Hertz speakers in a project I've been building, and they sound great. Other high end car audio manufacturers are Morel and Focal - and yes, those speakers could also be made to sound great in the home. Unfortunately, the audio world is full of a bunch of know-nothing snobs who can hear the most incredible differences between audio setups - unless they're put in a double blind test. In particular, check out double blind tests done on amplifiers to get an idea.
Question:	Are these tubes all compatible with the u.s. ms-10d? ––– > 6p1 = 6p1p = 6n1n = 6aq5 = 6p15 6n1 = 6n1p = 6н1п = 6n1n-ev = 6h
Answer:	At the first,when you connect bluetooth,turn on it it will have a slight sound,but after a whille ,it will disappear,if still have this sound,pls check your speaker and your power supply.hope you can know it,any problem ,pls contact technical support ,thanks
Question:	Do you need a phono preamp for a turntable record player? Also, does the volume knob control the volume of headphones as well
Answer:	This tube amplifier have two input modes, AUX/ Bluetooth, you can select the input modes by the switch button,if you want to use bluetooth connect it ,pls select toggle to bluetooth modes, search our tube amplifier" aiyima T2 pro ",then connect it. And All of the bluetooth device can only connect one-to-one, not one-to-many,thanks!
Question:	Would this amp make car component speakers sound good for home use? (in boxes, of course.) they are 4 ohm, rated at 250 watt RMS
Answer:	4-8ohm

Product description

Dared MP-5BT,Sales over 100 thousand units,International renowned brand, We are DARED brand authorized seller!

Enjoy your music the way you want! Use the stereo RCA jacks to connect directly to a CD player or use the Bluetooth to connect wirelessly with your phone or use the via DAC/USB to connect directly to computer digital source,breathing new life into your digital music, easy usability that is unsurpassed.



The Rose gold with exposed tubes gives a look of uncluttered simplicity, which looks great in any office, study, or even in the midst of the swankiest cocktail party.



Specifications:

• Power Output: 25W x 2
• Frequency: 20-25kHZ
• S/N Ratio: 86dB
• Distortion: 0.1%
• Input Impedance: 100kΩ
• Output Impedance: 4Ω, 8Ω
• Max. Power Consumption: 110W
• Input: Bluetooth,USB DAC, LINE
• Output: Speaker, Headphone,Stereo Preamp
• Voltage: AC100-120V/50-60Hz ,AC220-240V/50-60Hz
• Tubes: 6N1, 6N2, 6E2
• Dimensions: 10.24*6.3*6.1 inch (WxLxH)
• Weight: 8.36lbs




Package list:


• MP-5BT Tube Amplifier *1
• User Manual *1
• Power Cable *1
• Signal line *1
• USB cable *1
• White gloves *1
• Wiping cloth *1




Dared MP-5BT with small size and multi functions at affordable price, amp deliver natural, articulate sound.
• Dared MP-5BT is a most popular tube amplifier, sales over 100 thousand units, top player in hi-fi vacuum tube amplifier industry, It is a favorite of music buffs for the past 20 years, with a number of patented technologies, with amazing sound and amazing appearance, it is a work of art!
• This vacuum tube amplifier adopts hand welding and with highest quality components and materials to ensure the true reality of the sound quality, The amplifier hybrid preamp section and class AB power amp section. The tubes deliver warm and subtle music to the preamp section, while the solid state components increases the efficiency and quality of the music.
• 25 watts per channel output, power can drive most home stereo speakers, Support bluetooth wireless for android, iPhone, tablets, smartphones, other streaming devices (supports APTX), support direct line-in, friendly USB and Aux input, when you plug it in via DAC/USB. Speaker output, pre output and 3.5mm headphone personal listening output.
• Vacuum tube amplifiers in that the glass vaccum tube section is on the exterior. The chassis is made of finest stainless steel and plated with a high quality rose gold finish, flanked by two 1 inch thick wood panels with a lacquered black piano finish. which looks great in any office, study, or even in the midst of the swankiest cocktail party.
• This tube amplifier is the best choice for HIFI friends a first choice for music lover, see beautiful and sound beautiful, it's the Dared best-selling and most cost-effective tube amplifier, The machine is warranty for 1 years, If the product you purchase does not satisfy your needs, send it back for a full refund.

User questions & answers

Question:	Can i connect this to my teac h300 to give extra power to my system
Answer:	not suggest connect that,thanks
Question:	Can I connect a pre-amp to this
Answer:	no, it can be used as a integrated amp or as a preamp
Question:	Can I hook up a turntable if i have a turntable preamp
Answer:	Sure, I do. I haven’t had mine long, it was my way of stimulating the economy. However so far I’m happy with it.
Question:	Is the headphone out a balanced output? Asking since it's 3.5mm vs. 2.5mm
Answer:	Dear my friend, it is line output, 3.5mm, thanks

Product description

One of the most tube amplifiers in the world!

You can be rest assured that we stand behind our product, not only do we believe we have the best product, but we back it with a 1 year warranty.



With small size and multi functions at affordable price, Dared MP-5BT combines the warmth of tube pre amplifier stage with the efficiency and power of solid state class AB amplifier, this structure ensures this amp will deliver natural, articulate sound..



Specifications:

Max. Power Output: 2x25W

Frequency: 20-25kHZ

S/N Ratio: 86dB

Distortion: 0.1%

Input Impedance: 100kΩ

Output Impedance: 4Ω, 8Ω

Max. Power Consumption: 110W

Input: 2.4GHz Wireless Audio Input,USB DAC, LINE

Output: Speaker, Headphone,Stereo Preamp

Voltage: AC100-120V/50-60Hz ,AC220-240V/50-60Hz

Tubes: 6N1, 6N2, 6E2

Dimensions: 10.24*6.3*6.1 inch (LxWxH)

Weight: 8.36lbs



What are in the box:

White cotton gloves

A decent mini-jack to stereo RCA cable

A nice real, long USB cable

A nice pair of Sennheiser Headphones.

A mini to 0.25-inch converter for users of headphones from before IPOD station.

An average IEC mains cabl.

A nice manual

A simply gorgeous bijou integrated tube amplifier.

• THE MOST POPULAR TUBE AMPLIFIER: The Dared MP-5BP is a best seller and has thousands of satisfied customers from around the world. It is a favorite of music buffs for the past 20 years, not only for its amazing sound but also its amazing quality and visual appeal.
• PERFECT MECHANICAL STRUCTURE AND ATTRACTIVE FINISH:Visually stunning and built of the highest quality components and materials: The chassis is made of finest stainless steel and plated with a high quality gold finish, flanked by two 1 inch thick wood panels with a lacquered black piano finish. You will not only enjoy the high quality sound, but also the fact that it is a work of art!
• HYBRID DESIGN: This compact amplifier combines the warm tube preamp section with a solid state class AB power amp section. The tubes deliver warm and subtle music to the preamp section, while the solid state components increases the efficiency and quality of the music.
• LINE-IN ,USB/DAC AND BLUETOOTH INPUT:The Daret MP-5BT supports Bluetooth wireless(supports APTX) for Android, Iphone, Tablets and other streaming devices. You also have the option of a direct line-in.
• HEADPHONE AND SPEAKER OUTPUT ,PRE OUTPUT:The Dared MP-5BT has an output power rating of 25 watts per channel and has a 3.5mm headphone output for personal listening. This amp can drive most home stereo speakers and can connect with most audio listening devices.

User questions & answers

Question:	How do you remove the cage
Answer:	Standard 3.5mm on the back.
Question:	How do you switch between 4ohm and 8ohm
Answer:	These chassis is 9 1/4” wide, 5 1/2” deep, 1 15/16” high. The transformer adds 2” to the height.
Question:	Can I daisy chain another amp through the pre-out to control a subwoofer
Answer:	Yes, plugging in headphones will disable all the speaker outputs, including the sub.
Question:	Does the amp really puts out 25 watts @ 8 ohms
Answer:	No, You can not use in Singapore. But Ok to use with step down transformer from 240v AC to 120v AC. Do not buy if you do not had one on hand. It cost a lot of $$

Product description

Features

1.Bluetooth vacuum & valve tube preamplifier and headphone amplifier.

2.Headphone output is 100mW @32Ω and is suitable for 16~64Ω headphones and headsets

3.With remote control, more convenient and easy to control the preamp even not beside the machine .

4.Bluetooth, USB(means U-Disk and USB 2.0 thumb drive, NOT PC-USB), TF Card and RCA input. 5.Add Treble,Mid and Bass Control, much funny with different combination function.

6.Replaceable Vacuum Tubes, can use 6K4/6J1/6J2/6J4/GE5654/6AK5 vacuum tubes, etc



Parameters

Audio input: Bluetooth/Stereo RCA/U-disk/TF Card

Audio output: Stereo RCA / 3.5mm headphone jack

Supported formats of U-disk and TF Card: MP3 / WMA / APE / FLAC / WAV

Max storage of U-disk: 32G

Max storage of TF card: 32G

Vacuum Tubes: 6K4*2

Frequency Response: ±3dB (20Hz-20KHz)

Treble/Mid/Bass range: ±6dB

Input sensitivity: 0.775V

THD: 0.05%

SNR: ≥98dB

Headphone Output Power: 100mW/32Ω

Matched headphone impedance: 16-64Ω

Working voltage: DC 12V

Dimensions(W*D*H): 128*118*36mm / 5.04*4.64*1.41in

Net weight: 410g / 0.93lb

Package weight: 700g / 1.54lb



Warm tips:

1. Tube-M1 is a tube preamp but NOT A PHONO PREAMP.

2. This preamplifier needs to work with amplifiers or active speakers, cannot drive passive speakers or used with turntables directly.

3. In RCA input mode, the previous / next song function is invalid.

4. The USB interface only supports U-disk and USB 2.0 thumb drive, not support PC-USB.

5.The RCA and 3.5mm headphone jack can output at the same time.

6. Mode1，Mode2 and Mode3 buttons are invalid buttons with this remote.

7. The remote control is come with a CR2025 battery, once it is run out of the power, you can get it with a replacement with the same model.



Package Include

1 x M1 Preamp

2 x 6K4 Tube

1 x DC12V Power Adaptor

1 x Remote

• Valve Tube Preamplifier: This Bluetooth 5.0 tube preamp can greatly help to improve the sound quality. With Modes Select, Previous, Play/Pause and Next buttons on the machine, you can control your music on this preamp directly. (NOT COMPATIBLE WITH PHONO.)
• Tube Headphone Amplifier: Support 100mW @32Ω headphone output. It is suitable for 16~64Ω headphones and headsets with 3.5mm jacket. With Treble, Mid and Bass knob, Tube-M1 preamp & headphone amplifier provide you more selection to enjoy your music.
• RF Remote Control: Come with RF remote control that make it more convenient to use. You can turn it ON/OFF, select the input channel, mute, play/pause, previous and next. Also, you can use the numeric keys to choose the music and adjust the volume by the vol- or vol+ button.
• Vacuum Tube Replaceable Preamp: Adopting vacuum tubes design to filter out the digital sounds of common sound sources, making the sound warm and sweet. Default 6K4 tubes, and can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles.
• Compatibility: Can be perfectly compatible with iPod, Phone, MP3, TV, CD players, laptop, desktop computer or other streaming media players etc., satisfy most requirements of common home audio system use. Support MP3/WMA/APE/FLAC/WAV format files.

Product description

Warm tips:

1. PC-USB supports OTG but we cannot guarantee that G6 can be compatible with all mobile phones. In addition, Android system needs OTG cable and IOS system needs large current camera kit, please prepare by yourself.

2. Default 32V/5A power supply, each channel can output max 80W (4Ω load), if you want higher output please prepare larger power adapter by yourself.

3. Want upgraded GE5654 vacuum tube please visit: https://www.amazon.com/dp/B088RBVVF3



Parameters:

Audio input: Bluetooth / PC-USB / stereo RCA

Audio output: banana speaker jacks

Number of channels: 2.0

Amp IC: TDA7498E

USB chip: CM6642

Max output power: 160W*2 (4Ω)

Matched speaker impedance: 4-8Ω

PC-USB supported sampling rate: 24Bit / 192KHz

PC-USB supported systems: XP/W7/W8/W10/MAC/linux

Bluetooth version: QCC3008 (APTX / APTX-LL)

Frequency response: 20-20KHZ(±3dB)

Treble & Bass range: ±6dB

Distortion: 0.1%

Signal to noise ratio: ≥98dB

Input sensitivity: 0.775V

Working voltage: DC 19-35V

Dimensions(W*D*H):11*168*33mm / 4.53*6.61*1.30in

Net weight: 610g / 1.34lb

Package weight: 1330g / 2.93lb



Packing List:

1*G6 Amplifier

2*6K4 Tube

1*Tube Cover

1*32V/5A Power Adapter

1*Bluetooth Antenna

1*USB Cable

1*User Manual

• Multiple audio inputs: with stereo RCA / Bluetooth 5.0 / PC-USB inputs, no any driver is needed, plug and play, perfectly compatible with iPod, Phone, MP3, TV, CD players, laptop, desktop computer or other streaming media players etc., satisfy most requirements of common home audio system use.
• Much larger output power: adopting TDA7498E chip whose max output can reach 160W+160W (4Ω load), the distortion is low and without audible noise. Equipped with 32V/5A power adapter, easily to drive most bookshelf/ computer/ desktop /ceiling /floor-standing passive speakers.
• Reasonable circuit design: adopting QCC3008 Bluetooth chip which supports APTX and APTX-LL transmission, and CM6642 USB chip supports 24Bit/192KHz lossless decoding. Integrated preamplification circuit with treble and bass control, NE5532 op amp with pluggable socket design, easy to change other op amps to enjoy different sound styles.
• HiFi clear and charming sound: adopting 6K4 vacuum tube to filter out digital sounds, soften the sound and make it warm and delicate, full and mellow. And 6K4 can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles.
• Compact design and exquisite appearance: black aluminum case with a red tube cover which looks more textured and fashionable, can match well with different audio devices, very suitable for home and desktop stereo audio system use.

User questions & answers

Question:	Can you recommend an external DAC to pair with this unit
Answer:	Greetings. the output power : 25 watts @ 4 ohms, 16 watts @ 8 ohms.

• 50W+50W DUAL CHANNEL -- F900 bluetooth receiver amplifier provides 50W+50W dual channel stereo output with the upgraded chip TPA3116. Impedance: 4~8 Ohm.
• THREE INPUT OPTIONAL -- Supporting AUX/ USB/ Bluetooth input. But the amp module can be searched and connected via Bluetooth when unplugging audio input line. Insert audio input line, then it will auto switch to wired input mode, Bluetooth function will be lost.
• SUPER COMPATIBILITY -- This Bluetooth audio transmitter can be widely applied to various tablet PC, TV, smartphone, Laptop with Bluetooth, iPhone and etc, versatile and simple to use. But it does not apply to a range of products launched by Amazon such as Echo, Alexa ect. and Bose Speakers.
• MINI ELEGANT SIZE BUT POWERFUL -- Ultra small size (3*2.7*1.5 inch) with metallic colourful shell, advanced technology and chip, our Bluetooth stereo amplifier has good sound quality, no distortion, no humming or hissing and sounds clear, crisp.
• QUALITY ASSURANCE -- We guarantee 30 days return and money back and lifetime customer service. Please feel free to contact us if you have any question before or after purchasing, our customer service is ready for you at anytime.

User questions & answers

Question:	How do you hardwire this in a car? In the pic I only see a power cord with connectors at both ends. Do you have to cut one of the plugs off
Answer:	This amp comes with a built-in USB DAC, so if you’re planning on using your computer as a source, you don’t need anything else. Otherwise, any DAC of your choice will work through the AUX/standard RCA input. You just want to make sure the DAC you choose supports the sampling rates you need.
Question:	Powered from 12v system of Yamaha G22 (gas) golf cart. will I hear ground loop whine that varies with engine speed coming out of my speakers
Answer:	Greetings. You can use screw driver to remove the cage. There are two holes there , just remove the grille by unscrewing the two screws.
Question:	Not comparable with Amazon echo
Answer:	greetings. you don't have to switch between 4ohms and 8homs. The amp is compatiable between 3ohms and 12 ohms, so definitely compabiles between 4ohms and 8ohms.
Question:	What is the power adapter input size? It doesn't specify? I want to buy a 90 watt power adapter for it but need to know the input diameter
Answer:	greetings. yes, that is a good way to drive subwoofer. The pre-out is signal output, can connected to a active subwoofer directly. But also you can daisy chain another amp through the pre out to control a subwoofer.

Product features

Facmogu Mini 50W*2 Bluetooth Power Amplifier

Only 154 gram, the weight of a smart phone!

Just like a cigarette box, but it can output 50W per channel.

Not only for wireless Bluetooth transmission, but also be used as a mobile sound card.

Adopts high-efficiency TPA3116 class D chip, small but high power, delivers natural, clear and crisp audio sound, which can meet your various DIY needs!!

Super Compatibility / Support Bluetooth 5.0

Supporting AUX/ USB/ Bluetooth input. Compatible to most bluetooth devices: iPhone, smart phones, tablet PC, laptops, TV, projector etc. But not for Echo.

Note:

1. The amplifier can be searched and connected via Bluetooth when unplugging audio input line.

2. Insert audio input line, then it will auto switch to wired input mode, Bluetooth function will be lost.

Great Choice for Hifi Audiophile

F900 Amplifier is constant impedance amplifier, supports 4~8 ohm passive speakers, suitable for DIY bookshelf speakers, but not for constant voltage ceiling speakers.

The 4 binding post connectors are the output interfaces. You can insert a banana plug or fix the thread wires directly, then connect to the bookshelf speaker according to the "R" and "L".

• ❶ Multiple audio input methods,It Support Bluetooth 5.0/PC-USB/RCA inputs from various devices like iPod, Phone, MP3, TV, DVD players, laptop, desktop computer or other streaming media players etc.,It's a nice vacuum Headphone tube preamp exclusively designed for the customers who pursue HiFi sound!
• ❷ Tube T8 be used as a headphone tube preamplifier,Can Enjoy high-quality lossless music at any time,RCA/3.5mm headphone output(With priority),RCA output to the powered speaker,amplifier & passive speaker,Headphone output is suitable for 16~300Ω headphones and headset
• ❸ QCC3031 Bluetooth 5.0,Support APT-X,APT-X LL lossless transmission,Signal transmission faster and stable,let your enjoy the HiFi sound!
• ❹ Adopt 6Ж1п-EB tube vacuum design for easy replacement(such as 6J1, 6J2, 6AK5, 6AK5W, 6F31 ,6BA6, 6K4п, GE5654, 6Ж1п,etc)provide warm retro tube sound,With independent gain adjustment design for treble and bass
• ❺ Exquisite and unique design,All aluminum alloy shell,heavy gold PCB,Build quality is surprisingly solid,Nice touch!With optimal integrated circuit to get dynamic and sweet sound.(Can offer technical support and warranty service!Pls Ask Me:www.amazon.com/hz/help/contact/A3BG62S1F23IH5# .Or leave any of your instant messaging account and I'll contact you.thanks!)

Product features

Adopt classical tube 6N3 design

T8 is a tube headphone Preamp, which uses MAX9722 headphone amp chip, and 6N3 tubes can get warm and smoother sound,

tubes can be replaced with GE5657,396A,2c51,12BA4,5670,6H3n etc,.

You can change the tube according to your needs to achieve different sound quality effects

Multi-function switch knob

Rotate the red knob to adjust the volume according to your preferences;

Press the knob to control the machine switch ON or OFF;when the headset and RCA output are connected at the same time,you can double click the button to switch to the sate of simultaneout output of the headset and RCA(Headset output Priority)

Exquisite and unique design

The visual OLED digital display is more intuitive and clear, and the operation is more simple and convenient;

T8 is custom-made, unique, exquisite, and desktop, It is designed for everyone who loves HiFi, audiophiles and beginners.

6N3 Digital Tube Preamplifier

PC-USB supports sampling rate: 192K/24Bit

Distortion: RCA: 0.2%/HP: 0.003%

SNR: RCA,108dB; HP, 106dB

Working voltage: DC12V

Maximum output power: RCA: 1.9V/HP: 120mW@32Ω

Input sensitivity: 2V

Net weight: 0.87kg

Frequency response: 20Hz-20kHz (±0.5dB)

Product Size: 123*50*139mm/4.84*1.97*5.47"(L*W*H)

• Headphone impedance matching is 16-300Ω
• T8 Can be perfectly compatible with iPod, Phone, MP3, TV, Echo Dot, laptop, desktop computer or other streaming media players etc.,
• Satisfy most requirements of common home audio system use.