: 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

Ensure the total load impedance does not drop below . Running two 8-Ohm speakers in parallel equals a safe 4-Ohm total load. Step 2: Peripheral Input Routing

: The QM4 model number appears to have been used by several brands. The "Quest QM4" is a portable PA speaker. While its architecture is different from your powered mixer, its manual may still hold valuable clues about general setup, safe operation, and specifications like power handling for speaker cabinets.

: Each channel features combination XLR and 1/4" inputs. Channel Controls : Gain, tone, and reverb per channel.