---
product_id: 393965516
title: "ST42 4-Way RCA Audio Switch Source Signal Input switcher selector Splitter Box (4 in 2 Out)"
brand: "solupeak"
price: "€ 147.88"
currency: EUR
in_stock: true
reviews_count: 5
category: "Solupeak"
url: https://www.desertcart.fr/products/393965516-st42-4-way-rca-audio-switch-source-signal-input-switcher
store_origin: FR
region: France
---

# 4-way input switch Gold-plated connectors Precision rotary knobs ST42 4-Way RCA Audio Switch Source Signal Input switcher selector Splitter Box (4 in 2 Out)

**Brand:** solupeak
**Price:** € 147.88
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game—switch smarter, sound better!

## Quick Answers

- **What is this?** ST42 4-Way RCA Audio Switch Source Signal Input switcher selector Splitter Box (4 in 2 Out) by solupeak
- **How much does it cost?** € 147.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/393965516-st42-4-way-rca-audio-switch-source-signal-input-switcher)

## Best For

- solupeak enthusiasts

## Why This Product

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

## Key Features

- • **Dual Amplifier Output:** Simultaneously manage 2 amplifiers for versatile audio setups
- • **Premium Build Quality:** Durable aluminum chassis and solid knob for a sleek, professional look
- • **Plug & Play Simplicity:** No power needed—just connect and control your audio sources instantly
- • **Lossless Audio Integrity:** Passive design ensures zero signal degradation for pristine sound
- • **Seamless 4-Source Switching:** Effortlessly toggle between 4 stereo inputs without unplugging cables

## Overview

The SOLUPEAK ST42 is a compact, passive 4-way RCA audio switcher that allows seamless selection between four stereo sources and outputs to two amplifiers. Featuring a durable aluminum chassis, precision rotary knobs, and gold-plated connectors, it guarantees lossless audio quality without the hassle of unplugging cables. Ideal for professionals seeking clean, efficient audio management in a sleek, plug-and-play design.

## Description

SOLUPEAK ST42 is a 4-way audio source control designed to accept four stereo audio sources input, such as CD DVD TV PC, and switches out between two amplifiers through two rotary knobs on the front of the box. It is a good idea to solve the problem of unplugging and plugging the wires.

Review: スイッチがスピーカー回路に入って音質が劣化することは無いようだ．スイッチの質感もよい．
Review: Ottimo!

## Features

- This compact switcher box allows connection of up to four stereo sources, between two amplifiers
- Use specialized audio rotary switch/Lossless device, easily switch between different audio in or out
- Build in quality aluminum chassis and solid aluminum knob, looks nice and durable
- In/Out through high quality golden plated jacks
- This is a passive non-powered device. Plug and play

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094W84SR5 |
| Best Sellers Rank | #106,692 in Electronics ( See Top 100 in Electronics ) #271 in Audio & Video Selector Boxes |
| Item model number | ST42 |
| Manufacturer | Zhuogang |
| Product Dimensions | 15 x 10 x 4.6 cm; 500 g |

## Product Details

- **Brand:** SOLUPEAK
- **Cable type:** RCA
- **Colour:** Black
- **Compatible devices:** DVD Player, PC, Television
- **Connector type:** RCA

## Images

![ST42 4-Way RCA Audio Switch Source Signal Input switcher selector Splitter Box (4 in 2 Out) - Image 1](https://m.media-amazon.com/images/I/61uk4NoNmLS.jpg)

## Questions & Answers

**Q: Will the 2 "out" lines work for "TV headphones" and regular speakers (with no amplification in between)?**
A: You do need an amplifier, unless your speakers and headphones are amplified already.

**Q: Does this device allow one to connect, say, 2 different CD players to the amp and switch indifferently between the two, one signal at a time?**
A: Yes.  If you read the other questions, the connection is explained. Any 4 RCA sources to one Amp or reversed such as single CD player to 4 different amps.

**Q: Will this work for car audio?**
A: I don't see why it wouldn't.

**Q: What is the maximum recommended cable length for the output, since it is passive?**
A: That’s hard to tell. Depends on your cable and your tolerance of signal degradation.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***K on 25 September 2025*

スイッチがスピーカー回路に入って音質が劣化することは無いようだ．スイッチの質感もよい．

### ⭐⭐⭐⭐⭐ Review
*by O***I on 1 September 2025*

Ottimo!

### ⭐⭐⭐⭐⭐ Review
*by M***. on 14 November 2025*

Fa il suo dovere, nessuna sbavatura, consigliato, ottimo prodotto

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**Shop now:** [https://www.desertcart.fr/products/393965516-st42-4-way-rca-audio-switch-source-signal-input-switcher](https://www.desertcart.fr/products/393965516-st42-4-way-rca-audio-switch-source-signal-input-switcher)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-03*