Product description

This electronic preamplifier stands up to the test and will provide you with serious sound performance. The PP444 is perfect for bringing your studio equipment's phono-level output to a more suitable line-level output. It'll take your audio signal, amplify its strength and prepare it for further processing by your receiver or amplifier. Preamps technically provide voltage gain to your desired equipment and are key to assisting the signal source, whether it's a turntable, musical instrument or microphone. The ultra-low noise audio conditioning circuitry allows the preamp to boost audio to levels that are more manageable for various types of audio equipment. You'll find it easier to adjust the recording level volumes of different sources from microphones and instruments alike. You should position your preamp close to the source to reduce unwanted noise and interference. Preamps can sometimes come built into the stereo equipment, but if that's not the case, the PP444 is an easy install, wise choice and great addition to any musician or producer. Take your sounds and audio production skills to the next level with the PP444 Preamplifier. Features: Converts Phono Signals to Line Level Signals State-of-the-Art Circuitry Accommodates Magnetic Pickups Ultra-Low Noise Operation Improves Sound Performance Connects to Turntables and Other Studio Equipment Input Sensitivity: 3mV at 50K Ohms (Phono) Dedicated RCA and 1/4" Output Connectors Output: 2V max (P-P) at 10K Ohms DC 12-Volt Power Adapter Included Frequency Response: 20 Hz ~ 20 KHz ±2dB S/N Ratio (A-WTD): 70 dB - Output Level: 2V THD: 0.08% @ 1KHz and 3mV Input | S/N Ratio: 70dB Input Sensitivity/Impedance/Phono 3 mV/50K Ohms Load Impedance: 10K Ohms - Reference Voltage: 1V d Dimensions (W x H x D): 3.54" x 2.13" x 1.02" Sold as: Unit Weight: 0.85 lbs.

From the Manufacturer

&

	PP444	PP555	PP999	PHE300	PHE400
	Turntable / Phono Pre-Amplifiers			Noise / Hum Eliminators
Jacks	RCA & 1/4''	RCA & 1/4''	RCA	1/4'' TRS	1/4'' TRS & XLR
12V DC Adaptor	✔	✔	✔

• CONVERTS PHONO SIGNALS: A turntable preamp that converts phono signals to Line Level Signals This state-of-the-art circuitry phono preamp can accommodate magnetic pickups with an input sensitivity of 3mV at 50K Ohms
• LOW NOISE OPERATION: Offers outstanding performance with it’s Low-Noise Audio Operational Amplifiers The output is 2V max (P-P) at 10K Ohms It’s better to position the preamp close to the source to reduce unwanted noise and interference
• CONNECTS TO TURNTABLES: Connect any turntable to modern sound equipment without specialized phono input for amplifying music For the receiver, this can be connected to speakers, computers, laptops and more
• SIMPLE PLUG & PLAY: This mini preamp has stereo RCA inputs and stereo RCA outputs Connect the turntable to the RCA inputs and ground Then, connect the amplifier receiver to the RCA outputs
• 1 YEAR WARRANTY: We guarantee this electric phono preamplifier with both a 30 day no hassle money back return policy and a 1 year manufacturer’s guarantee

User questions & answers

Question:	Does this thing have an/off switch or do you need to plug/unplug everytime you use it
Answer:	no switch. You can plug/unplug, I leave it plugged in all the time.
Question:	Unit works fine for awhile and then starts outputting static, even with no input connected. I've tried it with several amps with the same results
Answer:	Most likely people who are having noise problems it is because of ground loop isolation problem. If you have a ground loop isolation problem grounding the preamp box is unlikely to help. Without getting technical, what you want to buy is a ground loop isolator or a humm eliminator; both the ground loop isolator and humm eliminator tackles the cause of the noise at the fundamental source of the problem, depending on your audio setup, one maybe easier to use than the other. To use the ground loop isolator or the humm eliminator they generally come with instructions, or you can google this topic. If the noise in your audio system isn't fixed by using this solution the first time, try putting the ground loop isolator and humm eliminator at various points in your audio system. Also you can talk to audio people and get advice about how to fix ground loop problems from people who setup big audio systems, for concerts and such; if you talk to the average electronic garage shop audio enthusiast you are likely to get bad advice, i.e., meaningless explanations. Also caution must be used when Googling this topic, much of the discussion, advice and explanation on this topic is bogus, you can get a general correct feel of this topic if you read a number of explanations. Also one more thing that can cause a "popping noise" is that you have too much gain, this is a phono amp and the gain is huge, it takes a 3mV and makes it 2Vp-p this is a gain of around 100 to 200, if you gain up the audio signal too much then the signal out of your amplifier runs out of head room and clips, this can cause a popping sound, essentially you have too much gain. If this is occurring you need to either buy a preamp with less gain or attenuate the signal before it gets to the preamp. If this is a problem, too much gain, you can buy preamps with gain control.
Question:	My turntable has very quiet output. Will this device help boost the volume
Answer:	Yes, indeed. If your need was like mine (no built-in pre-amp on the turntable and no specifically dedicated phono input on your amplifier) you will find this unit to be the perfect solution to needed amplification of the turntable's output. Don't forget to hook up the ground wire as directed or you may wind up putting unwanted noise into the audio.
Question:	My amp DOES have a Phono Input, but my cartridges are low output. Can I use this to boost the signal using the Phono Input to reduce audible hiss
Answer:	No, you can't. This is a phono preamp with RIAA playback equalization that amplifies the signal about 100 times, so it essentially does what your built-in phono preamp does. The output signal from the separate preamp is equalized to a nominally "flat" frequency response and the amplified signal level will overload and probably damage your built-in phono preamp. Plug it into any other stereo line input on your system (AUX, CD, DVD, TAPE, VCR, etc.), but NOT the PHONO input! If you need higher signal gain, maybe look at phono preamps from ART or TCC that have output level controls. If you use moving-coil (MC) cartridges, you need a preamp specifically designed for them...they require at least 55 dB (over 500 times) signal gain vs. about 40 dB (100 times) for moving-magnet (MM) cartridges. Noise becomes a critical issue with MC cartridges because of their extremely low signal output, so good-quality cables and good turntable grounding are essential.

Product features

Pyle Phono Turntable Preamp Mini Electronic Audio Stereo Phonograph Preamplifier with RCA Input, RCA Output & Low Noise Operation Powered by 12 Volt DC Adapter

• Converts Phono Signals to Line Level Signals
• State-of-the-Art Circuitry Accommodates Magnetic Pickups
• Ultra-Low Noise Operation Improves Sound Performance
• Connects to Turntables and Other Studio Equipment
• Input Sensitivity: 3mV at 50K Ohms (Phono)
• Dedicated RCA and 1/4'' Output Connectors
• Output: 2V max (P-P) at 10K Ohms

• DC 12-Volt Power Adapter Included
• Frequency Response: 20 Hz ~ 20 KHz ±2dB
• S/N Ratio (A-WTD): 70 dB - Output Level: 2V
• Input Sensitivity/Impedance/Phono 3 mV / 50K Ohms
• Load Impedance: 10K Ohms - Reference Voltage: 1V d
• Dimensions (W x H x D): 3.54" x 2.13" x 1.02"

Product description

Enhances and amplifies UHF/VHF antenna reception increases and improves Wideband RF amplification between the receiver and antennacompensates for signal loss/weak signal that occurs during long cable runs or multiple TV/VCR connections

• Designed specifically to improve the performance of outdoor antennas in low signal strength areas
• Switchable FM trap reduces interference from FM frequencies
• REFER TO ALL THE RELEVANT DOCUMENTS BELOW BEFORE USE.
• Preamplifier for outdoor antennas extends range in low signal strength areas
• RCA's advanced SmartBoost technology amplifies weak signals to deliver the most channels possible
• Optimizes performance with separate UHF/VHF amplification
• Switchable FM trap to prevent interference from FM signals

User questions & answers

Question:	will this work on my camper
Answer:	It worked great with my YAGI antenna but you probably have a much smaller type for your camper. However, the amplifier doesn't care what kind of antenna you have. If your antenna is inside a camper with a metal shell, give up. Otherwise, one thing you might consider is powering the amplifier directly from your battery instead of your 115VAC inverter.
Question:	Can this be installed by the tv? My antenna is not close to a power source to plug it in
Answer:	The Preamp is outdoor rated and you deliver it power via the coaxial that used to go to the antenna and then insert a new coaxial between it and the antenna. It comes with some rubber boots to weather protect those connections. You can then put the power inserter at the other end of the coaxial. For single TV setups just place it near the TV and plug it into the wall. For me, I placed the power inserter on just before the distribution amp which is less then 10 feet away (mostly vertical) anyway and have both amps running off the same outlet. I lost a whole bunch of station just using the distribution amp but adding this near the antenna brought them all back and even stronger then before. The station 34 miles away is still weak and the one 56 miles away is just a blip but those less then 24 miles away are solid like when I was only running 1 TV.
Question:	If i only plug in the power injector and not the pre-amp with fm trap will it still improve my signal
Answer:	No, I think you're trying to improve your signal without powering this device. I've done that for my neighbor using a Radio Shack 15-1113b distribution amplifier downstream from this. The Radio Shack unit somehow provide power to this unit and the signal is perfect by regulating over-signaling, which is common for this type of preamp. If you can't find the Radio Shack, you can probably find the Leviton 48210-VA that works similar.
Question:	If the power goes out, does the antenna still work with the Preamp
Answer:	I doubt the device requires 120VAC. More likely, the Wall Wart reduces / transforms the 120VAC to a lower direct current voltage. Thus, were it essential to retain the amplification during a power outage, I suspect one could fix up an alternative power source. Absent this approach, cutting the AC power would turn the amplification off and it would n longer boost the signal at all.

• 220 Watts Peak Power: The dual-pass Moukey BT stereo amplifier receiver is perfect for your karaoke, home theater, acoustic sound system, and monitor headphones. Provide you with enough powerful power amplification, which can accommodate 2 sets of speakers, so that you can enjoy the audio impact of high-quality audio amplification.
• 4.0 wireless connection: The sound amplification mixer device is equipped with wireless connection music streaming with a wireless range of 40 feet / 12 meters or more. Equipped with today's latest devices (including smartphones, iPads, iPhones and computers), it is easy to pair with the receiver.
• Multiple input and output modes: The digital amplifier box supports various external signal sources. 2 RCA audio inputs for tuner, CD player, tape drive, two 2.5-inch / 6.35 cm microphone inputs, one monitor headphone output port, USB, SD card, 3.5mm AUX IN and FM radio antenna. With RCA audio output, 2 pairs of banana plug speaker output.
• Easy Balance Control: Improved professional compact bookshelf sound amplifier with clear, responsive buttons for mode control. Knobs control microphone echo / volume, balance, bass, treble, master volume, input source and unique folder / track.
• HD screen: The integrated receiver for home stereo has a built in LED display w/ front panel audio control center. FM antenna and remote control are included in the package for distant audio adjustments.

User questions & answers

Question:	Can I use this outdoors with my Bose 251 speakers
Answer:	I would not recommend that.
Question:	Will the moukey bluetooth power amplifier system connect to a harman karman cd holder
Answer:	Yes, if your CD holder has an RCA line output. If so, you can connect the RCA cables into any of the RCA inputs of this amplifier.
Question:	Does it work with a tv
Answer:	I have bluetooth on my TV, so this is my flowchart. TV - Music is Bluetooth OUT Moukey - The TV Music is Bluetooth IN (to receive the TV signal) Speakers - Hardwired to Moukey If your TV / Roku / FireTV does not have Bluetooth, Then you can probably use the old fashioned Red & White RCA aka Mushroom-connections to hardwire the TV to the Moukey. I hope this helps.
Question:	Can I use 128gb SD card
Answer:	Yes, you could, but we would suggest you use a USB or SD card below 32GB.

Product features

Moukey MAMP1 Bluetooth Power Amplifier System

Moukey MAMP1 is a professional karaoke amplifier with multiple functions. It has a powerful thrust of 220 watts peak power, excellent audio processing chip, monitoring function, FM one-click search channel function, dual-microphone jack, USB, SD card, and other functions. It is definitely the first choice for home karaoke, desktop amplification, music monitoring, and teaching scenes.

High Thrust

220 Watts Peak Power---perfectly matches 5-8 inch speakers.

Multifunction

Please adjust to the corresponding gear when using.

Easy To Use

Enter the FM mode for the first time, and press the AUTO key to realize one-key search frequency. CH- and CH + are the upper and lower frequency adjustments respectively.

Product description

The RCA AMP1450R Digital Signal Amplifier for Indoor Antennas helps enhance the performance of all passive indoor antennas. It was engineered specifically for digital signals but it also supports analog signals. If your antenna is in a quirky or challenging area, the AMP1450R will easily transmit a signal that’s crisp and clear. It optimizes signal for the best possible reception through improved gain and also preserves signal purity with Extremely Low-Noise (ELN) circuitry.



To Activate Warranty Link - http://www.rcaantennas.net/register/?sku=AMP1450Z

• Boost the reception of your digital or analog signal television
• Enhances the performance of passive antennas in challenging areas of reception
• Preserves signal purity with Extremely Low-Noise (ELN) circuitry
• Turn a TV with spotty reception into one with crisp and clear reception
• Connect the cable of the antenna to input jack of the amplifier, then connect the amplifier's built-in cable to the antenna input on TV/ converter box
• DISCLAIMER: Reception quality and channels received will depend on distance from towers, broadcast power, terrain and other factors

User questions & answers

Question:	Can you boost your signal strength Uniden scanner
Answer:	If there were a coax antenna line connection, then it should amplify the signal. But I never saw a Uniden scanner with a coax antenna connection.
Question:	How is this amplifier powered
Answer:	There is an AC power adapter that gets plugged into a wall outlet. The cable you see in the image is the power cable. If you have any other questions, you can call us at 1-800-645-4994 option #3 for customer service. We are here weekdays from 9AM until 5:30PM EST.
Question:	does this thing realy work
Answer:	Yes, it works perfectly ! Used it for many years, doubles the range. Now flooded it accidentally and buying a new one. It's 12 v internally so you can bypass power adapter.
Question:	will this work on clear tv antannas
Answer:	I'm not sure what you mean by clear. This should work on any non amplified antenna setup.

• 【Converts Phono Signals】: Compact ultra-low noise phono turntable preamp that converts phono signals to line level signals. Designed with grounding post to protect your turntable.
• 【Features Power Switch & 3.5MM Headphone Output】: The unique power switch button design is very convenient to use. You can enjoy high-quality music with headphones through the 3.5 mm headphone output. Note: RCA line output and AUX headphone output can be output simultaneously.
• 【3.5MM / RCA Output】: BOX X1 supports MM turntable input, 3.5MM headphone output and RCA line output for powered speakers. Note: You can connect a power amplifier through the 3.5MM or RCA output, then connect the passive speakers.
• 【MM Phono Preamplifier & DC12V Power Adapter】: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: ≤0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA. Equipped with DC12V high quality power supply.
• 【What You Get】: BOX X1 phono preamp x1, 12V power adapter x1, User manual x1, 18-Month global warranty, and 24-Hour quick customer service.

User questions & answers

Question:	What equalization is incorporated in this preamp
Answer:	RIAA equalization
Question:	Can headphones and RCA output at the same time
Answer:	Yes, I really like the headphone output design of this phono preamp.
Question:	Can i use it with mm & mc phono output
Answer:	It just suitable for MM turntable.
Question:	Does this item have a power switch,right
Answer:	Yes, I see this is the only product in this series with a switch button.

Product features

BOX X1 MM Phono Preamplifier

Input interface: MM turntable input, Grounding post input, 12V DC input

Output Interface: 3.5MM headphone output, RCA output

Output: Active(powered) speakers, Headphone, Amplifier

Product Adapter Input Voltage Range: AC 100 - 240V

DC Input Voltage: 12V

Output Voltage Level: 2V max (P-P) at 10K Ohms

SNR: 70dB; THD: ≤0.08% @ 1kHz and 3mV

Frequency Response: Standard RIAA

Product Weight: 0.35lb / 161g

Product Dimensions: 3.94×0.98×2.17 inch

Unique Power Switch Button

Designed and assembled by Fosi Audio from high-quality components. Unique switch button design, great warm, smooth sounding phono preamp.

3.5MM Headphone Output

Audiophile-grade amplification modules offers outstanding performance with its Low-Noise Audio Operational Preamplifiers. Enjoy high-quality music with headphones through the 3.5 mm headphone output.

MM Turntable Preamp

Suitable for moving-magnet (MM) cartridges. Precise RIAA equalization. This portable mini preamp has stereo RCA inputs and stereo RCA/3.5MM headphone outputs. Connect the turntable to the RCA inputs and ground.

12V/1.5A Power Adapter

High-efficiency and energy-saving high-quality power supplies have passed many authoritative certifications for safety tests.

Product description

PylePro Model : PP999

Compact Ultra-Low Noise Phono Turntable

Compact Ultra-Low Noise Phono Turntable Preamp with 12-Volt Adaptor - Preamplifier

Converts Phono Signals to Line Level Signals

12-Volt DC 110V Adaptor Included

Dedicated RCA Connectors

Output Level: 2V

Reference Voltage: 1V

Load Impedance: 10K Ohms

S/N Ratio (with A-WTD): 70 dB

T.H.D. : 0.08 for 1 KHz 3 mV Input

Frequency Response:20 Hz ~ 20 KHz ±2dB

Input Sensitivity / Impedance / Phono - 3 mV / 50K Ohms

Dimensions (W x H x D):3.54'' x 2.13'' x 1.02''

Weight : 0.88 Lbs

This electronic preamplifier stands up to the test and will provide you with serious sound performance. The PP999 is perfect for bringing your studio equipment's phono-level output to a more suitable and manageable line-level output. It'll take your audio signal, amplify its strength and prepare it for further processing by your receiver or amplifier. Preamps technically provide voltage gain to your desired equipment and are key to assisting the signal source. The ultra-low noise audio conditioning circuitry allows the preamp to boost audio to levels that are more manageable for various types of audio equipment. You'll find it easier to adjust the recording level volumes of different sources and instruments alike. You should position your preamp close to the source to reduce unwanted noise and interference. Preamps can sometimes come built into the stereo equipment, but if that's not the case, the PP999 is an easy install, wise choice and great addition to any musician or producer. Take your sounds and audio production skills to the next level with the PP999 Preamplifier.

From the Manufacturer

&

	PP444	PP555	PP999	PHE300	PHE400
	Turntable / Phono Pre-Amplifiers			Noise / Hum Eliminators
Jacks	RCA & 1/4''	RCA & 1/4''	RCA	1/4'' TRS	1/4'' TRS & XLR
12V DC Adaptor	✔	✔	✔

• CONVERTS PHONO SIGNALS: A turntable preamp that converts phono signals to Line Level Signals. This state-of-the-art circuitry phono preamp can accommodate magnetic pickups with an input sensitivity of 3mV at 50K Ohms
• LOW NOISE OPERATION: Offers outstanding performance with it’s Low-Noise Audio Operational Amplifiers. The output is 2V max (P-P) at 10K Ohms. It’s better to position the preamp close to the source to reduce unwanted noise and interference
• CONNECTS TO TURNTABLES: Connect any turntable to modern sound equipment without specialized phono input for amplifying music. For the receiver, this can be connected to speakers, computers, laptops and more
• SIMPLE PLUG & PLAY: This mini preamp has stereo RCA inputs and stereo RCA outputs. Connect the turntable to the RCA inputs and ground. Then, connect the amplifier receiver to the RCA outputs

User questions & answers

Question:	If I have a record player without a Preamp, will this help me with hooking it up to a Sonos
Answer:	You can hook it up to anything with a red and white connection. Or if you get the rca to 3.5mm jack then you can hook it up to anything with an input slot. I used this on my realistic lab 440 which doesn't have a preamp. Once I connected the ground from my turntable into the ground slot on this amp, my music sounded loud and clear.
Question:	mp
Answer:	Turntables (with typical magnetic cartridges) have very low signal output (a few thousandths of a volt). Records have the bass reduced to provide enough room on the surface for the recorded grooves, and the treble boosted to reduce the surface noise level when played back. A phono preamplifier performs two jobs: - It boosts the small signal from the turntable by about 50 to 100 times (producing a "line level" signal) so it can be used by typical receivers or amplifiers.- It also boosts the bass and reduces the treble according to an industry standard (the RIAA equalization curve) to restore the signal from the record to its original frequency response.The Pyle PP999 is just an inexpensive phono preamp, nothing special. Phono preamps can range from $20 on up to whatever you're willing to pay for ultra-high quality. Some manufacturers make "USB" phono preamps that have A/D (analog-to-digital) converters built in and connect to a computer's USB port. Most of these provide "CD quality" conversion (16-bits at 44kHz or 48kHz). These may be adequate for digitizing your vinyl, but many computer sound systems can provide up to 24-bit, 192 kHz conversion depending on the software you use (much higher quality), by connecting the preamp output to the computer's line input. Don't just convert directly to MP3 files...you'll lose too much detail compared to the original vinyl sound. It takes almost no time to make an MP3 copy of a high bit-rate WAV or FLAC (lossless) file, but it'll take you an hour to make ANY digital copy of an LP, so do it the best you can the first time!
Question:	So this is a stupid question, I plug my RCA wires coming from my turntable into the Amp. But where do I plug the speaker wires into on the Amp
Answer:	TurnTable==>PreAmp==>Receiver/Amplifier==>SpeakersThe 'Pyle PP999' is the "Preamp". The Turntable is plugged into the PP999 INPUT and the PP999 OUTPUT plugs directly into any (non Phono) INPUT on the receiver. Your Receiver allows you to switch between different music-sources, contains the primary-amplifier and distributes the final sound out to the speakers(and subwoofer). The Receiver should have multiple inputs for receiving signals from eg. CD, Tape, VCR, etc. In my experience those labels are for convenience and interchangeable with the exception of a "Phono" input. NOTE: If the receiver has a "Phono" input then there's a built-in preamp. If your using an external preamp (Pyle PP999) do NOT plug it into the Receiver's 'Phono' input, it could cause damage. I plug the preamp for the turntable into the Receiver's 'VCR' or 'TV' inputs.
Question:	I have the Pyle turntable and Pyle stereo but they don't work together--VERY low sound--so is this the missing piece
Answer:	Turntables (with typical magnetic cartridges) have very low signal output (a few thousandths of a volt). Records have the bass reduced to provide enough room on the surface for the recorded grooves, and the treble boosted to reduce the surface noise level when played back. Most modern receivers DO NOT have the right inputs to deal with this signal (no "phono" input). A phono preamplifier performs two jobs: - It boosts the small signal from the turntable by about 50 to 100 times (producing a "line level" signal) so it can be used by typical receivers or amplifiers.- It also boosts the bass and reduces the treble according to an industry standard (the RIAA equalization curve) to restore the signal from the record to its original frequency response.The Pyle PP999 is just an inexpensive phono preamp, nothing special. Phono preamps can range from $20 on up to whatever you're willing to pay for ultra-high quality. Some manufacturers make "USB" phono preamps that have A/D (analog-to-digital) converters built in and connect to a computer's USB port. Most of these provide "CD quality" conversion (16-bits at 44kHz or 48kHz). These may be adequate for digitizing your vinyl, but many computer sound systems can provide up to 24-bit, 192 kHz conversion depending on the software you use (much higher quality), by connecting the preamp output to the computer's line input. Don't just convert directly to MP3 files...you'll lose too much detail compared to the original vinyl sound. It takes almost no time to make an MP3 copy of a WAV or FLAC (lossless) file, but it'll take you an hour to make ANY digital copy of an LP, so do it the best you can the first time!

Product description

MCM CUSTOM AUDIO 50-14820 STEREO LINE LEVEL AMPLIFIER ADJUSTABLE 0 - 15DB GAIN

• Price For: EachOrder Unit: Each 1

User questions & answers

Question:	I want to boost my ipod signal to the aux in of a car stereo. will this work for that? it has rca female input jacks on the back of the stereo
Answer:	Yes. Just keep in mind that this booster requires a power source in addition to the input and output cables. The power supply (fits in an ac outlet) is included with the device.
Question:	Can it drive 4 rock speakers from a rheostat connected to my home theater system
Answer:	No
Question:	Hi there, I have svs pb 2000 subwoofer connected to yamaha receiver and the output is way too low, i can barely hear that the sub is there.how do i co
Answer:	Its odd that your SVS pb 2000 (500WRMS 1000w peak) is too low when connected to the output of a yamaha receiver. I have exact same sub connected to line out output of a receiver (all line level outputs are about the same on all receivers) except some are a function of the receiver's volume and others are fixed volume. Either way, when my SVS pb 2000 volume is slightly over half its loud as hell, house shaking. Are you sure you have everything set/connected correctly ? Does your yamaha reciever have a dedicated bass out jack ? Something doesnt seem right. Try connecting to some other line out output on yamaha. Try disconnecting or shut off your main speakers, turn receiver volume to half way and see how loud sub really is. Does your music actually have subwoofer frequency content?? Try some modern rap or EDM music with known loud bass content. Just curious, are your speakers too loud at halfway? Anyway this little amp is extremely easy to connect. Just connect stereo RCA cable out from yamaha to input of this little amp, then connect another stereo RCA cable from output of little amp to subwoofer input.
Question:	How is it powered
Answer:	It is powered by a power adapter (included). It was a good match for my needs.

Product description

4 Port RCA Audio Video Duplicator Splitter for TV Cable Box DVD

Display the same audio and video on 4 screen



If often you have been had trouble in outputting audio and video to multiple TV (for example receiving a much weaker signals), this powered RCA port splitter is a life saver for you!



Multiple Monitors Setup in Mutil-Room

You can use this active composite video distribution amplifier to display the same content from 1 AV source (such as DVD, XBOX, PS3) on 4 TVs or projectors in multiple room at the same time, without worrying about not having enough RCA ports on your TV.



Get the Original Signals Back to Your Life

The composite video booster boosts your A/V signal that will eliminate the poor picture and buzz sound caused by using cheap RCA Y splitter cable, and provide you clean output signals like the original signals.



1 input 4 output compact size box is ideal for applications such as public video broadcasting, home theater system, DVR recording, multimedia display, and video conferencing, etc.



Note: You can use it for both audio and video, audio only, or video only splitting.



Specific

Input Interface: 1 Chanel 3RCA Jack (yellow, white, red) Female

Output Interface: 4 Chanel 3RCA Jack (yellow, white, red) Female



1. Video

Input level Resistance: VS 0.8-1.0Vp-p / 75Ω

Output level Resistance: VS 0.8-1.0Vp-p / 75Ω

Bandwidth: 50Hz-5.5MHz



2. Audio

Input level Resistance: 2V (RMS) / 47 KΩ

Output level Resistance: 2V (RMS) /1KΩ

Audio Frequency: 10Hz-20KHz, 0db

AC power adapter: DC 9V (Input: 100V - 240V ~ 50/60Hz 0.3A Max; Output: 9V 500mA)



What is included:

1 x 4 Way RCA AV Splitter (1 in 4 out)

1 x Power Adapter

• 4 way RCA composite video splitter (1 in 4 out) splits one audio video analog signal into multi TV monitors /speakers for multiple viewing monitors or dubbing projects
• 3RCA (phono connector) distributor is built with amplifier that enables you to get sharp, clear visual image and reliable audio even in long distance connection
• Durable metal case housing with anti-skid feet ensures rapid heat dissipation for protection and a longer use life
• Active A/V signal booster duplicator box is small enough to be fitted behind a monitor, in the back of a rack; with DC 9V power adapter, No extra software needed
• LED indicator and color coded RCA jacks make AV devices connection easy (yellow plug for video, white/ red port for L/R audio)

User questions & answers

Question:	Cab babana plugs be used in this? If not what can be used as an interface between this device and speakers banana plug
Answer:	the interface between this device and speakers is an amplifier or receiver. All this does is duplicate one source and lets you send it to multiple amps.
Question:	Can you plug an aux in one r and have it play out
Answer:	Sorry that there is no aux jack for this RCA splitter box.
Question:	Could I connect 1 Turntable that will feed 2 outs : 1 to each of two Amps
Answer:	Yes, with this 1x4 RCA A/V splitter box（1 input 4 outputs）you can feed to multiple AV devices up to 4.
Question:	Can I use only audio 2 rca plugs instead of 3 rca? I have only 2 rca plug in speakers
Answer:	Yes, you can plug 2 rca plugs into this 1X4 RCA port Splitter to obtain audio.

Product description

12 Way 1 in 12 Out 3 RCA Video Audio AV Amplifier Splitter Features:

High quality component, advanced circuit techniques design.

Independent amplified outputs, high isolation, excellent interference resistance ability

Strong insulation and anti-jamming.

Isolation, the output signal is not distorted, do not interfere with each other.

With On/Off switch.

LED power indicator.

No additional software needed.

Powered by AC adapter.

Can display one AV input to 12 AV output devices at the same time, such as HDTV, projector, LCD etc.

Can connect DVD, VCD, VCR, DV, VIDEO CAMERA, MD/LD

Suitable for family, office, restaurant, shopping plaza, hotel, factory, etc.

specifications：

Device Type: 12 Port AV Splitter Box for DVD VCD VCR

Video IN/OUT Terminals: 1- input (Type RCA Pin Jacks) 

Video Input: 1- input (Type RCA Pin Jacks)

Video Output: 12-output (Type RCA Pin Jacks)

Interface Type: 1 AV (yellow-red-white) input

8 AV (yellow-red-white) output

Dimensions 337 x 45 x 180mm

Color: Black

Weight: 1262g

• 100% Brand new and high quality audio-video splitter! Please note that the voltage of our product is 220V.
• Adopting high-quality components and advanced circuit design technology, sophisticated black brushed aluminum look；
• Independent amplified outputs, high isolation, excenllent interference resistance ability；
• Suitable for family, hotel, singing hall, shopping mall, school, factory, etc；
• No noise after power failure.

Product description

—— SATISFACTION GUARANTEED —— Your satisfaction is our #1 priority. If this item fails to meet your expectations we will accept it back a full refund within the first 30 days. We also stand behind this product with a limited 1-Year manufacturer warranty. Contact us if the item should show any defect, we will help exchange it for a new one.

• Ultra-compact phono preamplifier with metal body, portable and durable.
• 2 * RCA (L & R) inputs, 2 * RCA (L & R) outputs, 1 * 1/4 inch TRS output, multiple connection choices.
• With level and volume control knobs.
• For converting the phono signal to a line high level signal.
• Ultra low-noise audio performance offers excellent sound quality.

User questions & answers

Question:	What's the difference between "level" and "volume" controls on this product? (Normally, these terms are synonymous
Answer:	"level" is the signal gain and "volume" is the volume level.
Question:	Can i connect my old cd player and my old turntable to this unit? how would it switch from one to the other
Answer:	What reciever or main amp are you using? The old turntable and CD player do not have built in pre-amp. Normally these little pre-amp are used for newer surround sound receiver/systems with out phone in, CD in.
Question:	What's the difference between "level" and "volume" controls on this product? (Normally, these terms are synonymous
Answer:	The "level" is for the gain for the signal of RCA (L/R) output connected to your receiver/amplifier; while the "volume" is for the signal output of the 1/4" TRS jack connected to a headphone or amplifier .
Question:	What is the max gain amount in dbv? and does this have riaa pre-emphasis eq
Answer:	14db, a simple amplifier.

Product description

PyleHome Model : PCA2

Stereo Power Amplifier, 2 x 40 Watt

Stereo Power Amplifier, Compact Audio Amp with RCA & Speaker Terminals (2 x 40 Watt)

Features:

• Compact and Powerful Mini Amp System
• RCA (L/R) Audio Input
• Connect to External Audio Devices
• PushType Speaker Terminals
• Front Panel Rotary Controls
• LED Indicator Light
• Power ON / OFF Switch
• Configurable Treble, Bass & Volume Adjustment
  
  
  
  Technical Specs:
• Power Output: 2 x 40 Watt MAX
• Frequency Response: 20Hz40kHz
• T.H.D.: 0.3%
• Input Sensitivity: 750mV
• SignaltoNoise Ratio: 75dB
• 10% RMS at 4Ohm Impedance
• Tone Controls: Bass & Treble: +/10dB (100Hz/10kHz)
• Power Fuse: 1.5 A, 250V FastActing (5 x 20mm)
• Power: 110/220V Voltage Selector, 50/60Hz
• Dimensions (W x H x D): 5.9'' x 2.9'' x 6.4'' inches
• 
  
  

  This mini stereo power amplifier provides up to 40 W of power on each channel at 4 ohms. Connect your inputs using the RCA jacks. Outputs over standard speaker push jacks. It's compatible with any audio or computer device you can even hook up an iPod using a 3.5mm to RCA jack converter. Treble, bass, and volume controls on the front let you tweak your sound to exactly how you want it. Runs on 110 or 220 V.

From the Manufacturer

• 2x40 WATT Power: The Pyle dual channel audio amplifier is perfect for your home theater acoustic sound system; Gives you 2x40 watts peak power which can be used for speakers w/ 4 8 ohms impedance, enjoy high quality music and movies
• Multiple Sources: This small personal portable digital amp box lets you connect external audio sources such as a tuner, CD DVD player, tape deck, camcorder, VCR to the RCA (L/R) line input and enjoy enhanced amplified acoustic audio reproduction
• Led Indicator: The mini professional Integrated stereo receiver features LED indicator light above the power switch to indicate power is turned ON; The unit also offers built in short circuit and power surge protection for safe usage
• Push type Speaker Terminal: It lets you easily connect speaker wires directly to the amplifier; The speaker impedance ranges from 4 to 8 Ohms for the general stereo output; The total speaker impedance must be at least 4 Ohm per channel at stereo mode
• EQ Controls: The improved indoor smart compact bookshelf speaker sound amplifier Ffatures crisp and responsive buttons for the power switch; It also features rotary knob controls for the master volume, bass, treble adjustments

Product features

Pyle Home 2X40-Watt Stereo Mini Power Amplifier

This mini stereo power amplifier provides up to 40 W of power on each channel at 4 ohms. It's compatible with any audio or computer device - you can even hook up an iPod using a 3.5mm to RCA jack converter. Connect your inputs using the RCA jacks. Outputs over standard speaker push jacks. Treble, bass, and volume controls on the front let you tweak your sound to exactly how you want it. Runs on 110 or 220 V.

Pyle Home 150-Watt Stereo Mini Power Amplifier

This mini stereo power amplifier provides up to 75 W of power on each channel at 4 ohms. It's compatible with any audio or computer device - you can even hook up an iPod using a 3.5mm to RCA jack converter. Connect your inputs using the RCA jacks. Outputs over standard speaker push jacks. Treble, bass, and volume controls on the front let you tweak your sound to exactly how you want it. Runs on 110 or 220 V.

Pyle Home 2x120 Watt Audio Speaker Power Amplifier

This home amplifier is perfect for powering any stereo system. Using sophisticated circuitry and premium components for uncompromising musicality. This product is famous for delivering powerful and accurate sound. Complete with 2 x 120 watts of power. This simple to use and durable amp has bass and treble controls, a slick blue LED output level display, L/R RCA inputs, and 4 speaker outputs. This small but powerful amp delivers clear and crisp audio for it listener. Durable and affordable, this amp is made to last.

Product description

NOTE: THIS UNIT INCLUDES A 12V 3AMP POWER SUPPLY. Kinter's MA-170 mini amplifier is the new value leader in audio amplifiers, with 18 watts of robust power per channel and a stylish, modern appearance. The latest in IC-based amplifier technology delivers smooth, natural sound without fatigue or distortion, while running cool and drawing minimal power. The Kinter MA-170 is the real deal! You can use the MA-170 in a 2-channel home audio system, or build its capability into a portable unit that can be taken anywhere. RCA inputs and convenient spring terminal outputs will work with virtually any source and speakers to create a great sounding audio system. The black anodized aluminum housing's integrated mounting tabs make it easy to mount the amp anywhere. The glowing LEDs really set the mood for any music genre.Specifications: Power output: 2 x 18 watts Input impedance: 47K ohms Output impedance: 4 - 16 ohms Frequency response: 20 - 20,000 Hz Minimum THD: ≤0.02% Input voltage: 9 - 14.4 VDC Rated input current: 1A - 3A DC plug size: 2.1 mm x 5.5 mm DC input polarity: Center positive 12V 3A power supply included Dimensions: 4-7/8" L x 1-5/8" W x 4-5/8" D.

• Adjustable bass and treble for lifelike sound
• Pulsating LEDs change color
• Extruded aluminum housing with mounting tabs great for Arcade Sound
• RCA Left and Right inputs
• INCLUDES 12V 3A POWER SUPPLY

User questions & answers

Question:	Does this amp have enough power to run four 4" speakers
Answer:	This amplifier allows independently customizing the amount of bass and treble from an audio source. It doesn't sound very good but it has those controls.
Question:	I am looking for more control over bass treble. Hook this into any audio out and keep speakers plugged into receiver and still get functionality
Answer:	Mine didn’t come with a power supply either. I contacted amazon to correct the issue. It was a simple mix up since they sell the exact same amp, with and without the power supply. They sent a whole new amp and power supply.
Question:	Where is my powersupply
Answer:	Do you mean white noise? I am going to assume it was a type. If you troubleshoot both inputs as in moving the working channel from L to R and vise versa and both channels work with one wire, do the same from the source. Make sure it is not the source. Try a different device. I mean this is sort of basic troubleshooting. If you find the problem still does not go away , then you have a bad unit and you need to exchange it.
Question:	I'm getting white mouse only when i connect the two input channels. if i only use one, the audio comes out ok from the speakers.anyone know why
Answer:	Hi, please do not worry, the tracker built-in USB Plug.Just pull it down along vertical rather than horizontal direction to separate the device from the wrist strap, easy to charge with any USB block and computer; no charging cable or dock needed