Radio Shack Optimus Stereo Sound Mixer Sound Effect Echo SSM-1750

Optimus stereo sound rack mount mixer model SSM-1250 Powers On Untested Vintage

Radio Shack Optimus Stereo Sound Mixer Sound Effect Echo SSM-1750

RadioShack Optimus Stereo Sound Mixer with Echo SSM-1750 and Light READ DESC

Optimus Stereo Sound Mixer Sound Effect Echo SSM-1750 UNTESTED POWERS ON

Vintage Gemini MX-1250 Audio Mixer/EQ - Tested & Working

Radio Shack Optimus Stereo Sound Mixer Sound Effect Echo SSM-1750

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