---
product_id: 725073609
title: "Rockville APM10B 10\" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B"
brand: "rockville"
price: "¥35429"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/725073609-rockville-apm10b-10-400w-power-supply-active-studio-subwoofer-pro
store_origin: JP
region: Japan
---

# Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B

**Brand:** rockville
**Price:** ¥35429
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B by rockville
- **How much does it cost?** ¥35429 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/725073609-rockville-apm10b-10-400w-power-supply-active-studio-subwoofer-pro)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Rockville REQ42-B The Rockville REQ42-B is a 19" rackmount equalizer with individual LED indicators and RCA output. The frequency response is 20-20,000 Hz, and the signal to noise ratio is 80dB. This equalizer weighs 6 lbs. Features: Rockville REQ42-B Black 19" Rackmount 2 x 21 Band Equalizer Spectrum Analyzer 19" rack mountable Dual Channel 21+21 Band Graphic Equalizer (Total 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 Meter Level Monitor Individual LED indicator Output: RCA (REC, email) Multi-color LED display Low/High Performance Frequency response: 20-20,000 Hz Signal-to-Noise Ratio: 80dB Removable Rack Mount Bracket

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item model number | REQ42-B |
| Is Discontinued By Manufacturer | No |
| Color Name | Black |
| Standing screen display size | 19 Inches |

## Images

![Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B - Image 1](https://m.media-amazon.com/images/I/61fgt7IT+QL.jpg)
![Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B - Image 2](https://m.media-amazon.com/images/I/61R5sSO5jhL.jpg)
![Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B - Image 3](https://m.media-amazon.com/images/I/61lXupY-XML.jpg)
![Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B - Image 4](https://m.media-amazon.com/images/I/5111-Fuy01L.jpg)
![Rockville APM10B 10" 400W Power Supply/Active Studio Subwoofer Pro Reference Sub REQ42-B - Image 5](https://m.media-amazon.com/images/I/61ny-rxlIbL.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.

## 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?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/725073609-rockville-apm10b-10-400w-power-supply-active-studio-subwoofer-pro](https://www.desertcart.jp/products/725073609-rockville-apm10b-10-400w-power-supply-active-studio-subwoofer-pro)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-28*