Audio Choice Qm4 Manual

: Have your performer speak or play at their loudest performance level.

: Includes a 3-band Master EQ, master reverb level, and master volume controls. Connectivity Options : For connecting external effects processors.

The amplifier supports both low-impedance speakers (direct connection of a few speakers) and high-impedance distributed systems.

: If you hear clipping or "fuzzy" sound, reduce the Gain on the specific channel or lower the Master Level immediately to prevent speaker damage. audio choice qm4 manual

Connect compatible passive PA speakers to the 1/4-inch speaker outputs located on the rear panel using unshielded speaker cables (do not use shielded instrument cables for power amplification). Ensure the total speaker impedance load matches the amplifier's specifications.

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

is a , meaning it sends an amplified electrical signal out of its rear panel. : Have your performer speak or play at

This article is an informational guide based on typical features found in Audio Choice QM4 devices. For model-specific details, always refer to the official manual included with your product. Specifications and features may vary by revision.

: Connect acoustic-electric guitars, keyboards, laptop audio interfaces, or external playback media to the 1/4-inch Line inputs. Operating Instructions & Gain Staging

Core controls (common, concise)

You look at the console and see three options:

Check that your source instruments are using shielded instrument cables. Unshielded speaker cables used as input paths act as antennas for RF interference and electrical hum.