Phantom power switching
20db pad and phase reversal
Same mic-pre/eq circuit as the 52270B
4 band eq with five frequencies per band:
high and low pass filters
Continuously variable boost and cut: +-16dB
Relay switched channel insert bypass
All discrete, class "A" transformer coupled topology
using the circuits of the 52270B channel amplifier.
Auto-Mute group muting.
Stereo in place solo or destructive solo with solo safe.
Channel mute.
Professional long throw faders.
Direct channel outputs
Terminates on Neutrik combination TRS/XLR connectors.