12 best graphic equilizers

• Package Includes: Rockville REQ20 19" Rack Mount Pro Dual 10 Band Graphic Equalizer EQ w/VU Meters, Rockville RCDR10B 10' Dual RCA to Dual RCA Pro Audio Cable 100% Copper
• Features Of REQ20: Dual 10 Band Graphic Equalizer (20 Bands Total), Frequency Response: 20Hz - 20KHz, Dual VU Meters Level Monitor, Blue LED on each Equalizer Slide Control, Stereo RCA Line Input, Stereo RCA Line Output
• Vacuum Fluorescent Display, Bass/Midrange/High EQ Controls, Separate Left/Right Channel Volume gain control, Signal to Noise Ratio: >88dB, Input Power: AC ~ 110V 60H/220V 50Hz, 110/220V Switchable, Front Panel Power Switch, Removable Rack Mount Brackets, Dimensions: 17"(19" w/brackets) x 9" x 2.2", Weight: 5 lbs
• Features of RCDR10B: Rockville RCDR10B Black Dual Mono Right Angle RCA to Straight RCA Patch Cable, Dual RCA to Dual RCA, Nickel-Plated for Rugged Durability and Efficient Signal Transfer, 100% Copper Conductors for Enhanced Signal Clarity, OFC Spiral Shields for Effective EMI and RFI Rejection and Flexibility, Length: 10 Ft, Color: Black

User questions & answers

Question:	Will this work with denon avr 2112ci receiver
Answer:	Yes you can. I only use 2 channel receivers. Not into cinema and avr receivers. I use an external audio source selector. Available on Amazon. Mine handles 3 sources. But selectors with more source inputs are available. I run my sources to the inputs on the selector. Then run the single output to the auxiliary input or in the case of newer receivers, input 1,2 or 3. For my application it works very well. Technically you can connect this eq to your Denon or any other receiver without the in out loop.
Question:	what would cause this to make an awfull hissing sound ? right now its useless
Answer:	Trying to diagnose sound equipment is not always easy. A hum usually means a bad ground. A his could be a lose connection or a bad cable. First see if the noise is on both sides or just one. Single side noise try changing a cable from the left to the right to see if the hiss changes sides. If it does change does change out the cable. If the his stays then you have a speaker problem. If the his is on both sides check your ground. Hope this helps.
Question:	Can I connect this to a yaqin mc-13s
Answer:	You should beable to if u use aux cables for it
Question:	Can it be connected straight to a 200 watt am/fm home reciever
Answer:	Yes it will work very good with all types of recievers And 200 watts that's enuff to do alittle bit on thumppin I also have 200 watt receiver and with ROCKVILLE SOUNDS EVEN GREAT DEPENDED ON UR SPEAKER SIZE I HAVE 2 15 AND 2 SURRENDER NICE

Product features

Rockville REQ20 19" Pro Rack Mount Dual 10-Band Graphic Equalizer EQ+VU Meters

Package Includes:

• Rockville REQ20 19" Rack Mount Pro Dual 10 Band Graphic Equalizer EQ w/VU Meters
• Rockville RCDR10B 10' Dual RCA to Dual RCA Pro Audio Cable 100% Copper

_________________________________________________________________________________________________________________________________________________________________

Features of REQ20:

• REQ20: Dual 10 Band Graphic Equalizer
• Dual 10 Band Graphic Equalizer (20 Bands Total)
• Frequency Response: 20Hz - 20KHz
• Dual VU Meters Level Monitor
• Blue LED on each Equalizer Slide Control
• Stereo RCA Line Input
• Stereo RCA Line Output
• Stereo RCA Line Output for Record
• Vacuum Fluorescent Display
• Bass/Midrange/High EQ Controls
• Separate Left/Right Channel Volume gain control
• Signal to Noise Ratio: >88dB
• Input Power: AC ~ 110V 60H/220V 50Hz
• 110/220V Switchable
• Front Panel Power Switch
• Removable Rack Mount Brackets
• Dimensions: 17"(19" w/brackets)  x 9" x 2.2"
• Weight: 5 lbs

_________________________________________________________________________________________________________________________________________________________________

Features of RCDR10B:

• Rockville RCDR10B Black Dual Mono Right Angle RCA to Straight RCA Patch Cable
• Dual RCA to Dual RCA
• Nickel-Plated for Rugged Durability and Efficient Signal Transfer
• 100% Copper Conductors for Enhanced Signal Clarity
• OFC Spiral Shields for Effective EMI and RFI Rejection and Flexibility
• Length: 10 Ft
• Color: Black

Product description

Product Highlights: Most equalizers used for live sound mixing will allow you to affect frequencies across a variable frequency range. In general, if you’re trying to tune a sound by emphasizing desirable frequencies or pulling back less important frequencies, then you’ll be better off keeping the bandwidth fairly broad. On the other hand, if you’re trying to notch out hum, tame hiss, or carve out some other unwanted sound, then you’ll preserve your overall sound better by narrowing in on the frequencies you want to remove. Once you get into the world of digital mixers, studio-style fully parametric EQs become more common. These equalizers not only allow you to adjust the center frequencies of the mid bands, but they also allow you to dial in the bandwidth to make precise alterations to your sound, boosting board frequency ranges for added warmth or notching out an annoying resonance at 1.5kHz. While this surgical precision can be incredibly useful, it’s important not to get mired in minutia that can take up time you simply don’t have in live music production. That's why we are introducing our best Spectrum Equalizer for the price. It's an all around EQ's that everybody love. Great Sound! Great Light! Technical Details: Dual 10 Bands EQ With Blue LED Four Audio Source Line Input 4 RCA line input 2 RCA line Output Removable Rack Mount Brackets Spectrum Graphic Display Screen 110V/220V Switchable Power Source Dimensions: 16.9'' x 9.3'' x 2''

• Ten Bands of graphic EQ per Channel
• Multi-colored spectrum analyzer display shows the output of the system
• LEDs in all sliders, Two Line inputs and dual tape monitor loops
• Tuner | CD | TAPE | DVD inputs!
• Power supply MAX:20W
• NOTE: Refer the User Manual before use which is highly essential.

User questions & answers

Question:	can the output be sent to headphones
Answer:	No your source is put into the EQ and out to your amp
Question:	What are the actual dimensions. Is it 2” or 4” tall
Answer:	Around 4" it is a piece of junk I threw mine in the trash. Go to ebay they have lots of equalizers on there.
Question:	When in operation, what does the center window display
Answer:	The center window is NOT spectrum analyzer. It is one color only, and they all move at the same time. This equipment is junk, it is not worth more then 20.00
Question:	Can i hook this up to my home component cd player, or do I need a reciever also
Answer:	you can hook this up in line between a component, cd player, going to an amp. this will not power speakers.

Product description

The Rockville REQ231 is an extremely high quality professional rack mountable equalizer. This is a 2 channel equalizer with 31 bands per channel. The main focus on this was sound quality and making it rugged and tough. We wanted to build a professional product that will instantly make a good speaker sound better, and after months of testing we know we did it!



This graphic EQ also has a low cut crossover filter switch, with status LED, that helps remove rumble from mics. Another great feature is the bypass switch, with LED indicator, which is very convenient when doing sound checks.



We added a sub output with frequency controls which is something that we see a need for. Many brands for some odd reason do not give you a sub output and sub controls. We made sure to include this important function.



If you want the best sounding EQ on the market at a great price, then we highly recommend you try out our REQ231. If you are unsatisfied with the quality we will give you a 90 day money back guarantee including return shipping!



Features:



Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output

Dual channel (31 bands per channel)

Variable stage low and high cut filters

1/3 octave filter sets (ISO centers)

20 Hz to 20 kHz effective equalization range

Constant Q filters

Selectable 6dB or 12dB cut or boost range

Output level LEDs (-10 to +17 dB)

Bypass switch with status LED

Balanced XLR input/output

Subwoofer out

Channels: 2 (stereo)

Connectors: XLR balanced inputs and outputs

Bands: 31 per channel

• Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output. Dual channel (31 bands per channel). Variable stage low and high cut filters.
• 1/3 octave filter sets (ISO centers). 20 Hz to 20 kHz effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range. Output level LEDs (-10 to +17 dB).
• Bypass switch with status LED. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel.
• Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz
• Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dBLevel Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%.

User questions & answers

Question:	Can i connect speakers to the equilizer
Answer:	Mixer to eq then eq to powered speakers or mixer to eq then eq to amp then amp to unpowered speakers
Question:	can this EQ to subwoofer
Answer:	Its good i hve 1 single channel but it qorks great..
Question:	Would this work to boost the bass up a good bit in my home 2 channel stereo? I like a lot of bass without a subwoofer
Answer:	As any equalizer it is just going to help arrange the different frequencies. If you want more bass you should get a subwoofer. What an eq does is re-arrange what power is already there. You could make it sound more bassy by turning down the higher frequencies but that's working backwards. If you want more bass I would suggest using the money to buy a more powerful amplifier. (Or again getting a subwoofer)
Question:	Is the output for each channel stereo or mono
Answer:	Mono per side. Use both channel for stereo. For few bucks extra I suggest you to get Behringer EQ instead. Amazon always have great price for those EQ.

Product features

Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output

The Rockville REQ231 is an extremely high quality professional rack mountable equalizer. This is a 2 channel equalizer with 31 bands per channel. The main focus on this was sound quality and making it rugged and tough. We wanted to build a professional product that will instantly make a good speaker sound better, and after months of testing we know we did it!

This graphic EQ also has a low cut crossover filter switch, with status LED, that helps remove rumble from mics. Another great feature is the bypass switch, with LED indicator, which is very convenient when doing sound checks.

We added a sub output with frequency controls which is something that we see a need for. Many brands for some odd reason do not give you a sub output and sub controls. We made sure to include this important function.

If you want the best sounding EQ on the market at a great price, then we highly recommend you try out our REQ231. If you are unsatisfied with the quality we will give you a 90 day money back guarantee including return shipping!

Features:

Product description

Ultra-Compact 9-Band Graphic Equalizer with FBQ

If we all lived in a perfect world, there would be no need for audio equalization. Sound systems would be perfect and would reproduce perfect signals in all their glorious perfection. Also, everyone in that perfect world would like the same amount of bass, midrange and high frequency, and there would be no such thing as feedback. But the world isn't perfect, is it? Even the best sound system can benefit from the use of a good EQ--like the FBQ800.

Even the best sound system can benefit from the use of a good EQ. Click to enlarge.

1/4-inch and RCA inputs and outputs.

Nine steps of graphic EQ.

How Does it Work?

Imagine the frequency range of the sound you hear as a highway, a very wide one with nine lanes. Each of these "lanes" represents a single octave of the sonic spectrum. The first four lanes, labeled 63 - 500 (Hz) contain the really low frequency sound content, mainly bass, bass vocals, and the kick and tom drums. The three lanes labeled 1 k, 2 k and 4 k (Hz), make up the fundamental zone of most musical instruments and the male and female vocals. 8 k and 16 k cover the frequency range of cymbals, snare drums and higher pitched percussion instruments. The FBQ800 allows you to control the flow of audio traffic in each of these nine lanes. When properly applied, EQ makes it possible to hear all of these frequency ranges equally, thus the term equalization.

Feedback Elimination

When a specific frequency, or range of frequencies, reaches too high a level, feedback occurs--that all-too-familiar squeal or howl you get when the mic is too close to the speaker. Basically, feedback happens when there is so much of a particular frequency that it is picked up by the mic and run through the system again. That's why feedback typically gets louder and louder the longer it's allowed to occur. Needless to say, this kind of feedback is very undesirable.

This is where the FBQ800's Feedback Detection System really works its magic. In this ingenious circuitry, LEDs on the individual faders light up when that frequency band is approaching the danger zone. All you need do is lower the illuminated slider until the LED blinks out--voilá, feedback problem solved! What once required a highly trained ear is now an activity that even a child can master.

Sonic Toolkit

That really is the best way to describe the FBQ800. With its nine frequency bands, you easily fine-tune your sound and instantly eliminate feedback. And each fader can be used to boost or cut the frequency range it controls by as much as 12 dB (and that's a lot!).

Special attention is paid to the low frequency zone. In addition to low frequency faders, the FBQ800 features a Low Cut filter for removing unwanted low frequencies such as fl oor rumble, room resonance, electrical hum, etc. This is especially handy if your system is being used for speech rather than music.

To Boost or to Cut, That is the Question

Raising and lowering specific frequency bands can improve the frequency response of any room's acoustics. For instance, if the room you're in is "bass-heavy," lowering the 63 and 125 Hz faders can help eliminate an overall "boomy" or "muddy" sound. Likewise, gently boosting the 8 and 16 k sliders can add sparkle to a somewhat "dark" mix. Are the vocals getting lost in the mix? Raising the level of the 1 k slider can help bring them out.

It's important to note that raising a single fader level is not always the best solution; it's often better to lower the bands surrounding the frequency you want to bring out, and then boost the overall volume level to achieve better headroom.

Built for Accuracy and Reliability

Speaking of headroom, FBQ800's 6-digit LED Input/Output meters and level control are provided for precise level maintenance. Longterm reliability is ensured, thanks to high-quality illuminated faders and switches, and our ultra low-noise audio operational amplifiers provide outstanding sonic performance. In addition, all Mini Series components may be stacked to create an ultracompact signal processing solution.

What's in the Box

Behringer FBQ800 Ultra-Compact 9-Band Graphic Equalizer, Power Supply, User's Manual

• Ultra-compact 9.5" graphic equalizer for studio and stage applications
• Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as Audio Analyzer
• Additional Low-cut filter removes unwanted frequencies, e. g. floor rumble
• Accurate 6-segment LED input/output meters and Level control for precise level indication
• High-quality illuminated faders, potentiometers and illuminated switches for long-term reliability

User questions & answers

Question:	What type of cables are required to hook this up between an amplifier and yamaha receiver? Much appreciated
Answer:	Both
Question:	Can you adjust each channel (left/right) separately
Answer:	Nope, the only things lit are the little indicator lights for power +/- 12dbs and something else.
Question:	I see many mention that they use this for helping hearing loss by using this unit with headphones. My question is how do you use this with headphones
Answer:	They are very clean sounding eqs.
Question:	does it connect to amplifier
Answer:	First, this is not a player. This is a tone control with instead of just the normal bass, treble and high, divides it into 31 (from 20HZ to 20KHZ). Also, this model is mono (1 channel). You can get 2 of these or get the stereo model. You still need an amplifier and a player. You hook this up between a like a CD player and your amp.

Product description

Rockville REQ42-S



The Rockville REQ42-S is a 19” rack mountable equalizer that has individual LED

indicators and RCA outputs. It has a frequency response of 20-20,000 Hz and a

Signal to Noise Ratio Signal to Noise Ratio of 80dB. This equalizer has a weight

of 6 lbs.

Features:

Rockville REQ42-S Silver 19" Rack Mount 2 x 21 Band Equalizer w/Spectrum

Analyzer



19" Rack Mountable



Dual Channel 21+21 Band Graphic Equalizer (total of 42 bands)



Blue LED on each Equalizer Slide Control



RCA stereo input: DVD/Tape/Tuner/Aux-MP3 with Front Panel Selector Switch



RCA Stereo Record Output



Front Panel 3.5mm iPod/MP3 Player Input Jack



Dual VU Meters Level Monitor



Individual LED Indicators



Outputs-RCA (REC, Mail)



Multi Color LED Display



Low/High Function



Frequency Response: 20-20,000 Hz



Signal to Noise Ratio: 80dB



Removable Rack Mount Brackets

• Rockville REQ42-S Silver 19" Rack Mount 2 x 21 Band Equalizer w/Spectrum Analyzer.
• 19" Rack Mountable.Dual Channel 21+21 Band Graphic Equalizer (total of 42 bands).
• Blue LED on each Equalizer Slide Control.
• RCA stereo input: DVD/Tape/Tuner/Aux-MP3 with Front Panel Selector Switch.
• RCA Stereo Record Output. Front Panel 3.5mm iPod/MP3 Player Input Jack.
• Dual VU Meters Level Monitor. Individual LED Indicators.
• Outputs-RCA (REC, Mail).Multi Color LED Display.

User questions & answers

Question:	i dont have rca plugs int he back of my stereo. how i can conect this eq to my stereo thanks
Answer:	You could probably use a product like this: https://smile.amazon.com/gp/product/B07H94D77V/ref=ppx_yo_dt_b_asin_image_o05_s00?ie=UTF8&psc=1 I use one in a similar application. You would need to add a 3.5mm stereo plug to two RCA cable.
Question:	I cant get the slide controls to change any kind of frequency. Can you help
Answer:	There is a button that says EQ , if you do not engage the EQ your in bypass mode and there will be no Equalization . So press that button , but turn the volume to a lower level , because when the the EQ is engaged the volume will bump up . And also make sure your connections are correct, stereo out to EQ in . If your not sure if your hook up is correct refer to you Stereo owners manual.
Question:	i have a sherwood receiver and yamaha speakers for outside deck,would this eq work for this
Answer:	Depends upon the inputs and outputs for your receiver. Also depends upon whether your receiver supports an equalizer loop. Also depends upon whether you pipe other sources into your receiver or not. Don't take this equalizer outdoors, of course.
Question:	How does the spectrum analyzer work
Answer:	Very pleased....good rich sound

Product features

Rockville REQ42-S Silver 19" Rack Mount 2x21 Band Equalizer w/Spectrum Analyzer

The Rockville REQ42-S is a 19” rack mountable equalizer that has individual LED indicators and RCA outputs. It has a frequency response of 20-20,000 Hz and a Signal to Noise Ratio Signal to Noise Ratio of 80dB. This equalizer has a weight of 6 lbs.

Features:

Product description

In the world of audio engineers, club sound designers and professional grade home theater systems EQ’s are one of the most priceless pieces of gear you have at your disposal. No matter where you are or what room you may be in the frequencies of music will vary depending on the architecture of the room set up. Finding the right sound or that "Sweet Spot" is where a professional EQ will come into play. Technical Pro’s EQ7153 dual 21 Band Professional EQ was designed with exactly this in mind. Their superior design and quality parts once again sets this EQ apart from the rest! The ABILITY TO ADJUST 21 BANDS OF FREQUENCIES is a sound designer’s dream come true! This unit will give you so much control over your sound that after you integrate it into your studio, mobile rig or venue you will wonder how you ever survived without it! The EQ7153 is built with superior parts and will hold up under very tough conditions. This unit will work for a mobile rig or in the studio. The removable rack mountable brackets will allow you to fit it into any standard rack. You can connect up to 4 sources using the RCA inputs. Connect such sources as a CD player, DVD player audio, tuner etc. An additional input is available for an iPod, iPhone or MP3 player. Connect your iPhone or iPod by using the MP3 input and play your songs through this system! The outputs consist of an RCA record and main out which can easily be integrated into any sound system.

• Dual 21 band equalizer with individual LED indicators - Inputs: RCA (4 audio sources), MP3 (1/8'')
• Outputs: RCA (record, main) - Frequency response: 20Hz-20kHz - Equalizations Points: 32Hz, 63Hz, 100Hz+, 1kHz, 2kHz, 4kHz, 6kHz, 8kHz, 10kHz+
• Adjustment Range: ±12dB - Fluorescent spectrum display - Direct / Equalizer function allows option of unfiltered pass-through
• Bass booster increases the low frequency levels - Loudness booster increases the low and high frequency levels
• Removable rack-mount brackets - Dimensions (L x W x H): 19'' x 5.75'' x 3.75''

User questions & answers

Question:	Is there any way to din or turn off the led lights on the levers? they are blinding
Answer:	Get some acrylic model paint ( black or color of your choice) get a fine tip brush. Turn the eq upright ( knobs up ) place a small dab of paint on each light, let dry and make another pass. This will help deaden the glare.
Question:	Can i use a wire to ground the unit to my reciever to remove the hiss
Answer:	You could try. It is also possible the noise is coming from a component connected to your EQ. My EQ makes no audible sound, with all but two inputs being used, and no ground. Good Luck !
Question:	I have a sherwood rx 4105 am/fm stereo receiver and a teac cd-p650 compact disc player.will these hook up with this equilizer
Answer:	Yes
Question:	Is this 220 volts
Answer:	No, it's 110 volts. I'm really disappointed with mine. The blue led lights on the sliders are bright enough to light up the room. Also not happy with the performance.

Product description

Nady A-B Box (GEQ-215)

• Active balanced XLR, 1/4" TRS and unbalanced RCA inputs and outputs
• Constant Q bandwidth from each filter with 3% frequency accuracy
• Parallel filter design for minimal phase distortion

User questions & answers

Question:	are the sliders lighted
Answer:	No, this is a single channel equalizer, if you bought 2, one for each channel it would work. But there is a better answer, the ART 341 is dual channel for stereo systems. However it comes with 15 band per channel, 2/3s octave. Better function in my estimation. And provided you have RCA input, mini-plug or 3 prong connections on your amp, going from CD to amp to eq to speakers is easy. This eq is by far the most versatile of the ART eqs.
Question:	Can it be used on 220v
Answer:	YES
Question:	is this for cars or home stereo
Answer:	Cables are not included. Cost depends on brand.

Product description

The EQS755 is 1/2-DIN chassis Graphic EQ w/ built-in low-pass filter. Equipped with a full-featured 7-band Graphic equalizer, you will enjoy superior control over the audio spectrum with frequency adjustments in the 50 Hz to 16 kHz range over seven bands. This gives you the power to get the most of your sound system, and the ability to contour the sound output to your musical taste.

• 1/2-DIN chassis graphic equalizer with built-in low-pass filter6-channel/ 8-Volt RCA outputs (front, rear and subwoofer)7-ban graphic equalizer (50Hz, 125Hz, 315Hz, 750Hz, 2.2Khz, 6Khz, 16Khz)
• 3.5mm Front aux input2-channel RCA aux input with variable gain adjustments and high level speaker inputs
• Blue illuminationindependent master volume and subwoofer level Control with fader control select able 12Db low-pass Filer (60Hz or 90Hz)
• Ground loop isolation circuit Dimensions: 7"(w)x4-1/4"(l)x1"(h)

User questions & answers

Question:	What size are the screws
Answer:	Do not know. But it is well made and probably not need of repair for a long while to come.
Question:	Can you hook this up to subwoofer and door speakers? Got 3000watt ssl evo amp and 2500watt audiotek for doors. Please help
Answer:	Yes ,I guess so
Question:	does this amp remove distorcion and make speakers louder
Answer:	Yes it's a 2 channel equalizer
Question:	Does this double as a line converter for factory sterols without RCA outputs
Answer:	I ordered these twice and got 5 pieces with each order

Product description

Specifications:

Material: Metal

Color: Black

Input Impedance: 22KΩ

Output Impedance: 200Ω

Frequency Response: 20Hz~20KHz

Total Harmonic Distortion: 0.05%（1KHz）

Signal to Nosie Ratio: >90dB

Plug: US

Working Voltage: 110-240V

Item Size: 48 * 12 * 4.5cm / 18.9 * 4.7 * 1.8in

Item Weight: 2kg / 4.4lb

Package Size: 56 * 26 * 10.5cm / 22 * 10.2 * 4.1in

Package Weight: 2.5kg / 5.5lb



Package List:

1 * Equalizer

1 * Power Cable (US)

1 * User Manual (English)

 

• Professional dual channels stereo graphic equalizer.
• 15-band design with ±12db adjustable range for each channel.
• With LOW-CUT switch for effectively eliminating the low frequency noise.
• With BYPASS switch for convenient machine debugging.
• XLR balanced and 1/4" TRS unbalanced inputs & outputs.

User questions & answers

Question:	Does it have bluetooth
Answer:	Any 1/4" connector is unbalanced.
Question:	hello i received this EQ and it sounded great but the output level control for the right channel failed after a week. how can i get a new EQ
Answer:	Sorry, again don't know. Haven't tried it.
Question:	Are these 1/4 inch trs inputs and outputs unbalanced
Answer:	It might be a bit tall but honestly, we hooked this up to the home stereo and computer thru the TV for youtube and use it that way.... Then the mics are in hand. This is a total blast and comes out at every party.... Adults included!
Question:	How can I connect dual balance input to EQ-215 to a single output to mixer
Answer:	Your recording device/phone has a USB port (that part of the charger that goes into the computer or the charger plug itself) check to see if you TV has a USB port and you are good to go. You can also get a jack that can be used with both the TV and Memorex. Merry Christmas and good luck.

Product description

The Model 355 Dual 31-Band 1/3 Octave Graphic Equalizer may be used in a variety of applications such as live sound, recording studios, instrument racks, DJ sound systems and fixed equipment installations. Designed to interface into any audio system, the Model 355 is a powerful tool for solving audio problems and creating interesting sound textures. The Model 355 possesses a long list of impressive features including: constant Q circuitry, 20mm center detent sliders (with a selectable boost/cut range of 6dB or 12dB), balanced XLR and 1/4? and unbalanced RCA input and output connections, adjustable high pass and low pass filters, variable input level controls, signal clip level indicators, ground lift switch, internal power supply and selectable line voltage switch. The rugged, all-steel constructed chassis occupies 2U rack spaces and is intended for installation into standard 19? equipment racks. The 355 Dual Channel 31 Band EQ has the features and performance you need for any of your audio applications requiring precise equalization. Dimensions: 3.5?H x 19? W x 8.5? D Weight: 9.0lbs. (4.1kg) Frequency Bands: 31, 1/3 octave, ISO spacing Filter Type: Constant Q - 3% center accuracy Slider Travel: 20mm w/ positive center detent Range: +/-6dB or +/-12dB selectable High Pass Filter: 10Hz to 250Hz, 12dB/oct Low Pass Filter: 3kHz to 40kHz, 12dB/oct Input Connections: Active balanced XLR and 1/4? TRS {XLR pin 2, 1/4? tip = Hot (+)} Unbalanced RCA ...

• Constant Q circuitry 20mm center detent sliders Selectable boost/cut range of 6dB or 12dB Balanced XLR and 1/4" Unbalanced RCA input and output connections Adjustable high-pass and low-pass filters Variable input level controls Signal clip level indicators Ground lift switch Internal power supply Selectable line voltage switch Rugged, all-steel chassis 2U rackspace required

User questions & answers

Question:	does it have 48v phantom for both XLR mic inputs
Answer:	No.
Question:	I have read this unit takes two racks spaces, albeit it states above it is 5.9 inches, so which is it? Thank you
Answer:	Just measured, the height is 3.5 inches.
Question:	Is this true?...i have been told that i cannot connect this to a onkyo 737 home theatre receiver because it does not have a tape loop
Answer:	Hi Steve. I looked up the Onkyo 737 so I could answer your question intelligently. I need to know how you want to use the EQ before I an give you a good answer. You could use the Zone 2 output to feed the EQ input and then connect the EQ output to another source input, say if you own a tape deck and you want to equalize the response, but I do not see the traditional "tape loop" that would enable you to equalize the front two channels irregardless of which source you pick. So the simple answer is no you can't use it effectively. Sorry.
Question:	whay are the in put / out put in each channel are crossing? like. rca has in put and out put on same channel
Answer:	RCA is unbalanced, meaning its susceptible to noise problems. XLR (and 1/4 trs - not 1/4 tr) are balanced, and more immune to noise problems picked up in interconnecting audio equipment. Balanced connections use shielded, twisted-pair cable and three-conductor connectors (like XLR or TRS connectors). This noise cancellation is called “Common Mode Rejection.” It's also good for long cable runs. And so XLR and TRS cables are used to transmit balanced audio from one balanced device to another. In an audio rack you might be tempted to use an inexpensive cable like RCA because the cable runs are short. That's your choice, but the professionals use XLR cables for the cleanest sound they can engineer.

Product description

When the pros need an EQ, they turn to db. With a proven track record that spans four decades, dB EQs are the industry standard for touring, studios, and audio installations. With the dB heritage of revered Pro EQs, the 131s meets the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The dB 131s includes a single 31-band channel of 1/3-octave equalization, 12 dB input gain, switchable 6 dB or 12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended 10Hz to 50kHz frequency response and 110 dB dynamic range to the quality componentry and meticulous attention to detail, The 131s offers exceptional sound and rugged reliability that s you will always sound your best. Sure to find a home in the studio, on tour and with installed sound venues, The dB 131s is destined to take its rightful place in the lineage of great dB signal processors that are the professional's choice in signal processing. With such affordable quality, There's no longer any excuse for compromising your sound.

• Single 31-band, 1/3-octave constant Q frequency bands
• Switchable boost/cut ranges of 6 or 12dB
• 12dB per octave, 3dB down @ 50Hz low-cut filter
• Front panel bypass switch
• 12 dB input gain range
• Inputs: ¼” TRS and female XLR (pin 2 Hot)
• Outputs: ¼” TRS and male XLR (pin 2 Hot)

User questions & answers

Question:	Can the rack "ears" be cut off ? I have a very strict width limit
Answer:	Any ears can be cut off, but I would be very careful. If you damage the corners, the integrity of the cabinet is gone.
Question:	If using xlr to rca connector will it make noise
Answer:	rca connectors are typically noisy on any application.
Question:	Does this amp have low frequency’s for body shaking bass
Answer:	It is not an amp. You will need an amp between this and your speakers. This adjusts the bass thru treble in 31 frequency bands from 10-20K HZ. I'd suggest Googling graphic equalizer if you are not sure!
Question:	Can it be used in a car
Answer:	At 19" wide and several inches deep, requiring a/c power, I can't envision a situation where it would be practical to use this product in a car. Also, electrical noise from car electronics would be a factor.

Product features

dbx 131s Graphic EQ

When the pros need an EQ, they turn to dbx. The dbx 215s includes two 15-band channels of 2/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended frequency response and dynamic range, to the quality componentry and meticulous attention to detail, the 215s offers exceptional sound and rugged reliability that guarantees you will always sound your best.

Product description

Peavey A- A-B Box (PV 215EQ)

• Peavey PV 215EQ high-performance Graphic equalizer - AC Power cable - Peavey 2 year
• Filter type: graphic constant Q
• Number of channels: 2
• Inputs: 2 x XLR
• Outputs: 2 x XLR

User questions & answers

Question:	Can I use regular microphone with this equalizer
Answer:	Yes
Question:	I have hearing loss with some frequencies. Can this be used with my tv and dvd/stereo (surround sound) to boost or lower freqs for the best result
Answer:	Actually Beringer makes a eq that will wrk with you tv stereo equiptment a lot better. The peavey is set up to work with pro sound and you would have to a few different cables to get it to conform to you television sound