CRESTRON CNX-PAD8a The CNX-PAD8A is a high performance 8 x 8 stereo audio switcher and preamplifier, providing distribution of 8 stereo audio sources to 8 room outputs. Up to four CNX-PAD8A's may be combined to handle as many as 32 rooms*. Every room output includes independent control over volume, bass, treble, balance, loudness, and mute. Mono summing is also built in to facilitate distribution to non-stereo zones. Advanced Features Additional features make the CNX-PAD8A a truly refined audio component. Programmable input gain compensation assures a consistent level when switching between input sources. Scaling factor settings allow minimum and maximum levels to be defined for each room output. And, protective relays on each output prevent "thumps" during power-up and provide total attenuation when any room is turned off
