SM Pro Audio M-Patch Passive-1: Precision Monitor Control Plus Studio Talkback and USB Audio I/O User Manual
Page 10

SM Pro Audio
Page 10 of 15
PASSIVE-1 manual
5.7 Talkback
A built-in talkback microphone, automatically ducks the Control Room outputs by -20dB when
engaged. The talkback mic can be sent to the headphones or to the 2TRACK output. Note that
power must be connected for the TALKBACK microphone to operate.
5.8 Monitor Select
The monitor select switches activate the audio to the A & B outputs respectively. Both can be
selected simultaneously.