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Rockville

Rockville REQ42-B Dual 21-Band Graphic Equalizer, 19" Rack Mount, RCA In/Out, 3.5mm MP3 Input, LED Indicators, VU Meters, for Studio and Live Sound

  • Based on 872 reviews
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Availability: In Stock.
Fulfilled by Audiosavings
Arrives Wednesday, May 20
Order within 26 minutes
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Color: Black


Features

  • DUAL 21-BAND EQ: Fine-tune audio with 2 x 21-band graphic equalizers covering a wide 20Hz-20kHz frequency range.
  • RCA CONNECTIVITY: Features RCA stereo input and record output with front panel selector switch and 3.5mm MP3/iPod input jack.
  • RACK-MOUNT READY: Standard 19" rack-mountable design with removable brackets for easy integration into professional audio setups.
  • LED VISUAL MONITORING: Blue LED sliders, multi-color LED display, and dual VU meters provide precise level monitoring.
  • ROBUST BUILD: Durable black metal chassis weighs only 6 lbs and operates on 110V, suitable for home studios, events, or mobile DJs.

Description

The Rockville REQ42-B is a professional dual 21-band graphic equalizer designed for precise audio control in live and studio environments. With a 19" rack-mountable form factor and removable brackets, it integrates easily into any standard setup. The unit offers RCA stereo input with front panel selector switch, a dedicated RCA record output, and a 3.5mm MP3/iPod input jack on the front panel for added convenience. Each of the 42 total frequency bands is paired with a blue LED slider, allowing for accurate adjustments across a 20Hz-20kHz frequency range. A multi-color LED display, individual LED indicators, and dual VU meters provide real-time visual feedback of audio levels. Weighing just 6 lbs, the REQ42-B delivers professional features in a durable and compact chassis that operates on 110V AC power. Perfect for DJs, sound engineers, or audio enthusiasts, this equalizer is a dependable solution for optimizing sound in live sound reinforcement, studio mixing, or home audio systems.

Item Weight: 6.5 pounds


Product Dimensions: 19 x 12 x 6 inches


Item model number: REQ42-B


Is Discontinued By Manufacturer: No


Date First Available: July 21, 2014


Color Name: Black


Connector Type: RCA


Standing screen display size: 19 Inches


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • It Works.
Color: Silver
Of course, this is not the best of the home equalizer I have owned. This is the cheapest of them as I paid a lot more for the other ones. Simply, it does its job and I like it. Too many bands to adjust compare to my old ones (I still have one of them in use), therefore it is just a matter of practice to get used to that many controls to adjust. The spectrum analyzer is just an indicator of the input level not by frequencies but the overall sound, that is why it moves all the bars the same way always but it really responds to the overall sound input level. Another thing, most of the superior equalizers for sale, are more suitable for PA systems not necessarily for your home system but this one is. Even some people criticized the instruction manual, I don't need any kind of instructions to set up an equalizer to my home system, it is so basic. Recommended product for those who don't want to spend a lot of money and have some kind of experience in setting home stereo equipment instinctively, no instructions. ... show more
Reviewed in the United States on November 9, 2025 by Mario G.
    • Seems very good!
Color: Silver
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! ... show more
Reviewed in the United States on January 11, 2024 by Man on fire
    • Cheap rubbish
Color: Black
Buck up and pay wayyyyyyyyyyyyyy more for a REAL equalizer cause this is a cheap inferior product.....the flaws before it started buzzing 2yrs ago aside.....DON'T BUY IF YOU ARE A TRUE AUDIOPHILE
Reviewed in the United States on February 12, 2026 by Doctah Groovy
    • Worth for the money
Color: Black
Good quality product. There are a few things to improve Aesthetics: size and material of the brand name; instead of serigraphy an engraven in metal finish would be more appealing. The fluorescent graphics section should off when there's no signal. Leds on the bands controls should be dimmable. Sound quality is excellent. ... show more
Reviewed in the United States on April 8, 2026 by Leonardo Formigo
    • Need more bass?
Color: Black
Review Image by M. Sims
Frustrated with the quality of music from several surround systems I have had that were made for movies, I restored my Cerwin Vega AT-10s and purchased a Yamaha receiver to play my tunes. I don't consider myself an audiophile. I just like loud, clean music with plenty of low-end (which is why I restored the Vegas). I purchased an Esinkin Bluetooth audio adapter and the Rockville RQ42-B because I wasn't pleased with the bass response from only the receiver. Not being very knowledgeable of how to get more bass, I took a chance on the Rockville equalizer. I am extremely satisfied. I read all the reviews about the plastic feel of the sliders. They do feel a bit flimsy but I rarely adjust them after my initial set-up. Also, there is not much "play" with each slider since they are so small. The slider lights are bright but not distracting for me. The LED display appears to be purely for show and does not indicate a level of any band. I have my Bluetooth connected to the equalizer and the equalizer to the receiver so I can play music from my phone. It works flawlessly. I can rock out the house cleanly and annoy my wife and neighbors with great stereo sound. If you are on a small budget and want to improve your sound, get the Rockville RQ42. ... show more
Reviewed in the United States on November 12, 2022 by M. Sims
    • I was a little worried, but this unit is great!
Color: Black
The media could not be loaded. I was a little disappointed in reading reviews and finding out there was no spectrum analyzer, but no biggie, my main reason for getting this was to be able to adjust the sound profile more discretely, and this Rockville unit allows me to do just that. I have this hooked up to an old Yamaha AV receiver (before HDMI was a thing) and I have an old Kenwood dual tape deck, a turn table, and a 5-CD Harmon Kardon CD carousel. The tape deck is a new addition rescued from neighbor's trash so I was just glad it played. It sounded OK but a little muddy. Passing it through the EQ made it much crisper and brighter. My wife remarked that she was hearing things in the music that she hadn't noticed before. CD playback was better than it's ever been out of this receiver and speakers. Turntable is having an issue but that's not anything to do with the EQ. And FedEx delivered this a full week earlier than expected! If you're looking to set up an old-school 80's/90's component system, this EQ is a great addition. And the "spectrum analyzer" is pretty. ... show more
Reviewed in the United States on November 16, 2022 by Bigstuff

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