If you’ve recently acquired a or pulled one out of storage, you already know it’s a legendary piece of British engineering. Known for its "musical" EQ and robust build, this compact 4-bus mixer remains a favorite for project studios looking for that classic analog warmth.
This guide is community-sourced. For the factory manual, search “Soundtracs Topaz Project 8 manual” (similar signal flow). Soundtracs Topaz 12 4 Manual
Soundtracs (later Soundtracs/QSG) went out of business years ago. The 12-4 was the baby of the Topaz series, and sadly, the specific manual for the 12-input, 4-bus version is extremely rare. Most of the "manuals" floating around are actually just the block diagram and spec sheet. If you’ve recently acquired a or pulled one
: Features 2 Aux sends, 2 stereo FX returns, and 1&2 stereo group outs. Performance For the factory manual, search “Soundtracs Topaz Project