Audio Choice Qm4 Manual -

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

Decrease the high frequencies (High EQ) on the master section or the specific channel. Ensure the Master Reverb is turned up.

: Houses the overall master volume, a Master Graphic Equalizer , and an LED level meter to track the 100W built-in amplifier's headroom. Setup Guide & Rear Panel Connections

The is a versatile, compact 100-watt powered PA head designed for small venues, rehearsal spaces, karaoke, and public speaking. It offers reliable, portable sound reinforcement in a manageable package. audio choice qm4 manual

Unbalanced high-impedance input for instruments, keyboards, acoustic-electric guitars, or external playback media devices.

Illuminates when the amplifier is overloaded or clipping, warning the user to turn down the volume to avoid hardware damage. Step-by-Step Setup Guide

[Audio Sources: Mics/Keys] ---> [QM4 Mixer Head Inputs] | (Internal 100W Amp) | v [Passive PA Speakers] Step 1: Physical Placement Place the QM4 on a clean, stable, flat surface. Plug in microphones or instruments to the channel

| | Specification / Detail | | :--- | :--- | | Product Type | 4-Channel Powered Mixer Amplifier | | Manufacturer | SoundTech (under the 'AudioChoice' brand) | | Total Power Output | 100 Watts RMS @ 4 Ohms | | Frequency Response | 20 - 20,000 Hz (typical) | | Signal-to-Noise Ratio | >100dB (typical) | | Total Harmonic Distortion (THD) | <0.1% (typical) | | Channels | 4 | | Inputs | XLR & 1/4" per channel, plus Send/Return effects loop | | Master Section | 3-band graphic EQ (Low, Mid, High), Reverb & Level controls |

Unlike modern all-digital mixers, the QM4 offers a simple, tactile interface with dedicated knobs for every function—a design that many users find practical and immediate for live sound situations.

: Turn down all Gain , Reverb , and Main Level dials completely counter-clockwise before flipping the power switch. : Houses the overall master volume, a Master

" and XLR inputs, allowing you to connect microphones, guitars, or keyboards directly.

If you are looking to expand this system or buy spare components, you can frequently check vintage audio boards or browse verified musical gear listings on platforms like Reverb or eBay.