Symetrix 528 Voice Processor - Original grayface - Channel Strip

Symetrix 528 Voice Processor ProSoundUniverse Works great

2 for price of 1 - 2 Symetrix SG-200, Dual Signal Gate, 2 Channel Noise Gate Use

Symetrix 528E Analog Channel Voice Processor - Untested - For parts or repair

SYMETRIX 528E Analog VOICE PROCESSOR PreAmp, Compressor, EQ, Channel Strip -Read

Vintage Symetrix 528 Voice Processor

Symetrix 525, Dual Gated Compressor Limiter

SYMETRIX 528E Analog VOICE PROCESSOR PreAmp, Compressor, EQ, Channel Strip -Read