Because SoundTech is no longer in active production, current documentation is often provided by secondary marketplaces or similar 4-channel mixer guides:
In this long-form article, we will provide you with verified sources for the QM4 manual, explain how to decode the manual’s key technical diagrams, and offer a step-by-step troubleshooting guide based directly on the official documentation. audio choice qm4 manual link
: Includes a Master EQ for fine-tuning the overall output and a master volume control. Because SoundTech is no longer in active production,
Designed as a compact "head" for easy transport, often paired with C100 speakers. often paired with C100 speakers.