Audio Choice Qm4 Manual [verified] Jun 2026

3-Band Graphic EQ (Low, Mid, High), Master Reverb Level, Master Volume Level.

Plug in microphones or instruments to the channel inputs (1-4).

: The "QM4" appears across various audio brands, including the Q Acoustics Media 4 soundbar , the Quest QM4 powered speaker , and car amplifiers from ESX (Quantum QM-FOUR). This guide focuses specifically on the AudioChoice SoundTech QM4 powered mixer amplifier . audio choice qm4 manual

Issue 1: Power light is on, but there is absolutely no sound output.

The term "QM4" is used across a range of audio products, so it's helpful to be aware of other models you might encounter: 3-Band Graphic EQ (Low, Mid, High), Master Reverb

: Use standard speaker cables to connect the outputs on the rear of the QM4 head to your passive speakers (often paired with two 10" enclosures).

Before searching third-party sites, follow these reliable methods to get the original manufacturer’s manual. This guide focuses specifically on the AudioChoice SoundTech

A) B) Quantum Mechanics Tutorial C) Ominous Warning

operates as a self-contained public address (PA) head. It combines an analog preamplifier section, channel equalizers, a built-in spring reverb effect, and a 100-watt power amplifier into a single, cohesive unit. It is commonly bundled with two companion 2-way passive speakers, such as the SoundTech C100 enclosures . Key Technical Specifications 100 Watts RMS at 4 Ohms load impedance. Input Channels: 4 independent, modular mono channels.

: Ensure all equipment is sharing a common ground loop circuit. Try using a DI (Direct Input) box with a ground-lift switch for ungrounded external gear like instruments or laptops. Key Technical Maintenance Because the SoundTech QM4