: If connecting one passive speaker, ensure it has an impedance rating of 4 ohms or 8 ohms .
: Confirm that the Master Volume knob is turned down completely. Plug the power chord into a grounded AC outlet. Flick the power switch on; the front-panel LED power indicator should illuminate. Channel Strip and Input Controls The front panel of the Audio Choice QM4 Go to product viewer dialog for this item. audio choice qm4 manual
Verify that the Master Level knob on the front panel is spun entirely counterclockwise to 0 or Min before flipping the power switch. : If connecting one passive speaker, ensure it
: Plug microphones into the XLR ports or instruments/line-level sources (like a phone or laptop) into the 1/4" ports. Flick the power switch on; the front-panel LED
Set all channel Reverb and Tone controls to their center points. Turn the Master Volume knob to roughly 40-50%. Speak or play into your input source while gradually turning up that specific channel's Gain knob until the volume matches your environment. Repeat this step across all active channels to achieve a balanced audio mix. Advanced Operations: EQ, Effects, and Routing