The PM8 Passive 8 Channel Summing Mixer from SM Pro Audio is an acquired multi-channel passive summing mixer of high class that meets the demands of the home and professional studio. This sturdy 2RU allows for
up to 8 channels of audio to be passively mixed down to a stereo output pair. Each input channel features its own pan, mute, and rotary volume attenuator control. Eight professional combo connector inputs (XLR & ¼" TS) and three balanced XLR stereo output pairs can be found on the rear panel. A 25-pin D-sub connector is also available for direct connection from compatible Tascam and Digidesign systems.
The PM8 has a professional internal power supply suitable for operation between AC 110/115V to 220/230/240V. A voltage configuration switch on the left hand side of the rear panel should be set to match the appropriate voltage of your mains power supply. Simply slide the selector switch with your finger or a small flat-blade screwdriver to either the 115V or 230V position to configure the
The unit combines up to eight analog channels into a clean and clear stereo pair, with all the sonic depth and dynamics intact. It's the perfect tool for merging great sounding hardware synths and samplers into the mix without compromise.
However with all passive mixing devices, attenuating the signals will lead to an obvious drop in the main mix output level. What makes the PM8 so special is that it offers a transparent active gain make-up stage (this requires the unit to be connected to mains power). This will result in the audio path to remain fully passive from input to output.
The SM Pro Audio PM8 can be used stand alone on your desktop, however it is best installed into two standard 19" (482.6mm) compatible audio rackmount unit spaces.