Audio Choice Qm4 Manual ●

To prevent hardware damage and maximize audio fidelity, follow these sequential steps when building your sound system: Step 1: Speaker Connections

relies on analog circuitry, keep it away from direct moisture, spills, and poorly ventilated, enclosed racks. Periodically clear any dust from the rear ventilation slats to allow the internal heat sinks to cool down the integrated power amplifier under high-demand live use.

Inspect the main fuse cap located near the power entry block. If the inner filament is broken, replace it with a fuse matching the exact amperage and voltage ratings specified on the chassis. Issue 2: Power LED is on, but there is no sound

100 Watts RMS into performance-rated enclosures. audio choice qm4 manual

Core controls (common, concise)

The front panel of the QM4 provides each of its four channels with the following controls:

: If the mixer was subjected to a sudden power surge or incorrect speaker impedance, the internal fuse may have blown. Disconnect the AC power cord entirely before opening the chassis. Locate the glass fuse on the power supply rail and replace it only with a fuse of the exact same amperage and voltage rating. 2. Audio is Silent but Power Light is On To prevent hardware damage and maximize audio fidelity,

Before powering on the unit, ensure all level knobs are turned completely down to prevent damaging transient spikes. 1. Speaker Connections (Crucial Safety) SoundTech QM4

Audio Choice QM4 (often branded as Audio Choice by SoundTech

Ensure your speaker cables are inserted into the correct rear Parallel Outputs and pushed in completely until they click. If the inner filament is broken, replace it

: Always use dedicated unshielded speaker cables. Never use shielded instrument cables to hook up speakers, as they can melt under high voltage and damage the internal circuitry. Effects Loop (EFX Loop) & Auxiliary Ports

Press the button to cycle through:

of spacing around ventilation openings and avoid mounting it upside down [ 0.5.1 ].

Fully turn down all four channel knobs and the Master Volume knob.