Many MVSilicon B1-based 7.1 USB sound cards actually use a C-Media CM6206 or CM108 firmware layer. A known community fix involves using the C-Media 7.1 USB Audio Driver (version 8.0.0.1 or newer).
This is the "hot" software users seek—the one that transforms the bare-bones B1 into a gaming surround beast.
You cannot fix the hot preamp with the hardware knob alone. You must use the MVSILICON B1 Control Software.
For musicians using the B1's mic input:
The B1 is not a low-latency chip—typical round-trip latency is 15–30ms—but ASIO4ALL can get it down to ~10ms for basic podcasting.
