Shopping Cart

Your cart is empty.

Your cart is empty.

Rockville REQ42-B Black 19' Rack Mount 2 x 21 Band Equalizer

Free shipping on orders over $29.99

$69.95

$ 31 .99 $31.99

In Stock

1.Color:Black


  • Rockville REQ42-B Black 19" Rack Mount 2 x 21 Band Equalizer. 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). Multi Color LED Display
  • Low/High Display Function. Frequency Response: 20-20,000 Hz
  • Signal to Noise Ratio: 80dB
  • Removable Rack Mount Brackets


The Rockville REQ42-B 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 of 80dB. This equalizer has a weight of 6 lbs.


Walter Wyatt
2025-09-03 14:28:22
That it's a great deal and it works well. I replaced an older high-end eq. This one actually sounds better. You can't go wrong.
Man on fire
2025-08-20 10:27:44
My prior EQ has been on onr stereo unit of mine or another for 40 years! A few years ago, it started giving me problems and I bought another EQ which really let me down to the point where even though the old one was flaky, I connected it back to my stereo. But it was time to say goodbye. I purchased this one and got it the other day. I like having all the bands to shape the sound as you desire and also the fact that you can control each speaker separately with two separate bound waves. The blue lights are cool looking but I would admit that would be nice to be able to dim them or shut them off, as they are staring back at me and are very, very bright! But it sounds good. I didn't think an EQ made that much difference on the sound as far as the unit itself, but after buying the other one that I pulled back out of the system, I found out that it does! I've only had it a couple days - but so far, so good. Hopefully, I will get many years of use out of it. I would love to purchase a fully remote control unit one day if they have them. But other than that, it seems like a really good unit at a very fair price!
JC
2025-08-17 11:05:01
July 2023 // This EQ sounds great in my system. The only thing I see that I don't care for is the operation of the cheesy Level meter. It looks like a Spectrum Analyzer but only bounces up and down based on the input level and band settings. I would prefer a regular VU meter...LED or analog... the way this meter works cheapens the look of the unit to those of us that can grasp what it is actually doing. Despite what I see as a single flaw, It is a great little unit for the price. // Now November 26, 2023... After only 4 months the first of the level markers on the sliders has failed. I guess poor construction practices are a sign of the time.... Now 10 months later...on my second unit an on this one, way worse, all the spider lights are on and off all the time. Still sounds great, but lets be real....need to look like quality as well. Nov 30,2024- the left channel went static and failed. Not going to try a forth unit. Think I'll just trash this POS and look for one that offers at least for quality. DON'T BUY THIS!!!!!!!!!
Vetriselvan
2025-08-13 15:51:34
Really enjoying the music with this Equalizer. 4 stars only since this eats up the volume a lot and need to increase the volume even in direct mode. If the display was designed as a spectrum analyzer according to the music it would've been a great product..
Nonya Business
2025-07-26 15:48:31
Nice and inexpensive equalizer with bright blue LEDs which match my setup so I was happy… The meter is a bit strange. Looks like a Frequency Analyzer but it isnt… the slightly more expensive version has an analyzer which I would have purchased had I known it existed but considering how badly its advertised on this site its a wonder I found it at all… So … Its nice eye candy and has some EQ uses but would have been so much more effective with a remote for all the separate inputs the unit has, though I did find a way to route it through the line in/out on my modern Yamaha Receiver so I can use it to modify all aspects of the sound in my system… You get a lot for the small cost, but I would have paid more if, again, it had a remote like all my other components do…
greenlyons
2025-05-06 11:48:37
Gave it five stars, so this will be read by prospective buyers . DO NOT BUY- I went through three types of wires to get my speakers to work Don't buy - save your frustration and time.
Doctor Octoroc
2025-04-09 15:44:41
Having an all-silver component setup, it was nice to find something in a matching color with lots of pretty lights on it to add to my system. However, that's about all this EQ is - pretty lights. The sound quality overall isn't bad, but when the EQ is enabled, there is a high pitched background noise coming through the speakers. I know it's not an issue with any other component in my system because it doesn't come through when the EQ is disabled (set to 'direct' on the system) and wasn't present before I added this unit into the mix. I tried different inputs, changing out cables, setting all of the sliders to 0, etc. but it's definitely an issue with the wiring/grounding in the EQ portion of the unit itself. It's not noticeable when a loud song is playing but is intolerable during quiet portions or when nothing is playing.As other have said, the LED's on the sliders vary in brightness (and the brightest ones are very bright) so that's a drawback on an otherwise quality appearance. Many of them also crackle when being adjusted - nothing some pot cleaner wouldn't fix - but brand new out of the box there shouldn't be any oxidation on the contacts so that's another issue for my unit. I was also disappointed that the spectrum analyzer is only four bars on the right side of the display (nothing is displayed on the left side, seems a waste of space) and there is no customization - it cycles through different display modes on its own accord but doesn't allow you to select one of your choosing. In the user manual, it says it features dual VU meters. If there is a way to display a second one on the left side, it doesn't say how in the manual and all of my fidgeting with the buttons didn't make it happen either.Overall, it's not a bad product for the money, but it isn't without it's problems and a high-pitched background noise is not worth the improved sound otherwise. It may just be my unit with a loose connection inside somewhere but I'm not going to open it up to try and fix it. I'll give it a few more days to see if it's the type of issue to subside over time but I suspect I'll be returning it and shelling out a bit more for an Akai EA-A7 I was eying up before I pulled the trigger on this...
Antonio
2025-03-13 19:14:49
Tiene buena división de frecuencias
Rod Z.
2025-02-22 17:52:48
To the person who said the spectrum analizer does not work, IT DOES, just reverse the RCA jacks, your inputs and outputs were reversed, over all everything works fine, i cannot tell much difference in the sound as I am using the FX Sound app, this app has many settings, you also can move it`s sliders to suit your tastes ,
ubhay
2025-01-29 16:54:36
nice but works on 110 volts quality is good
John Daniel Mclaughlin
2024-11-15 18:53:29
load of scrap, I too had to buy a voltage converter of amazon for 35 pound to convert (110v- 240). volts for use in the u.k. done next to nothingthe only thing on mine that came on. was the lights on the rightside. not the lcd screen or any touch of the funtion buttons done nothingdon't be fooled because it looks good.
Mariusz
2024-11-13 13:18:44
be careful when ordering to a country where 240v is valid, because this device is 110v, it exposed me to an unplanned purchase of a 240v to 110v converter.Of course, the description does not say anywhere what voltage the device is designed for.Regards
Recommended Products

$168.00

$ 69 .99 $69.99

4.3
Select Option