--- product_id: 5110809 title: "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" price: "β‚±16186" currency: PHP in_stock: true reviews_count: 13 url: https://www.desertcart.ph/products/5110809-req42-b-dual-21-band-graphic-equalizer-19-rack-mount store_origin: PH region: Philippines --- # RCA + 3.5mm MP3/iPod input for versatile connectivity Blue LED sliders + multi-color LED display 2x 21-band EQ for ultra-precise tuning 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 **Price:** β‚±16186 **Availability:** βœ… In Stock ## Summary > πŸŽ›οΈ Elevate your sound game with precision and style β€” don’t just listen, command your audio! ## Quick Answers - **What is this?** 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 - **How much does it cost?** β‚±16186 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/5110809-req42-b-dual-21-band-graphic-equalizer-19-rack-mount) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dual 21-Band Mastery:** Shape your sound with 42 frequency bands spanning 20Hz-20kHz for studio-grade precision. - β€’ **Visual Audio Command:** Blue LED sliders and dual VU meters give you real-time, eye-catching level feedback. - β€’ **Lightweight & Durable:** Robust black metal chassis weighs just 6 lbsβ€”built to perform at gigs, studios, or home setups. - β€’ **Plug & Play Versatility:** RCA stereo input/output plus front 3.5mm MP3/iPod jack keeps your playlists and gear connected. - β€’ **Seamless Pro Integration:** Standard 19" rack-mount design with removable brackets fits effortlessly into any professional setup. ## Overview The REQ42-B Dual 21-Band Graphic Equalizer is a professional-grade audio processor designed for live and studio environments. Featuring two independent 21-band equalizers covering the full audible spectrum (20Hz-20kHz), it offers precise sound shaping with intuitive blue LED sliders and dual VU meters for visual monitoring. Its 19" rack-mountable, lightweight metal chassis includes versatile RCA and 3.5mm inputs for seamless integration with modern and legacy audio gear. Ideal for DJs, sound engineers, and audiophiles seeking detailed control and reliable performance in a compact form factor. ## 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. Review: It Works. - 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. Review: Seems very good! - 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! ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #28,556 in Electronics ( See Top 100 in Electronics ) #1 in Audio Component Equalizers | | Customer Reviews | 3.9 out of 5 stars 1,084 Reviews | ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61fgt7IT+QL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: I cant get the slide controls to change any kind of frequency. Can you help?** A: 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. **Q: I realize that this unit does not have a spectrum analyzer, but where are the dual vu meters that are listed three times in the description?** A: It has no VU meters. **Q: How does the spectrum analyzer work** A: It's fake- it doesn't represent anything other than the overall level with a completely made-up representation of frequencies. **Q: i have a sherwood receiver and yamaha speakers for outside deck,would this eq work for this?** A: 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It Works. *by M***. on November 9, 2025* 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. ### ⭐⭐⭐⭐⭐ Seems very good! *by M***E on January 11, 2024* 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! ### ⭐ Sounded great for less than a year, Poor construction *by J***C on July 18, 2023* 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!!!!!!!!! ## Frequently Bought Together - Rockville REQ42-B Black 19" Rack Mount 2 x 21 Band Equalizer - Tan QY 2RCA to 2RCA Cable 3Ft, Gold-Plated 2 RCA Male to 2 RCA Male Stereo Audio Cable for Home Theater, HDTV, Gaming Consoles, Hi-Fi Systems (3Ft/1M) - Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/5110809-req42-b-dual-21-band-graphic-equalizer-19-rack-mount](https://www.desertcart.ph/products/5110809-req42-b-dual-21-band-graphic-equalizer-19-rack-mount) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-06-23*