SQN SQN-5S SERIES II MIXER Stereo, MS, 5 channel, portable, PPMs, Nordic scale
SQN 4S series 2 Mixer with Porta brace case | Reverb
SQN 4S Series IV 4:2 Microphone/Line Mixer | Reverb
SQN Portable Mixers | dB Audio Visual
SQN-3M Specification
SQN-4s II Portable Audio Mixer – Phototek Canada
SQN 4S Mixer - Trew Audio
SQN SQN-5S Series II Audio Stereo Microphone Mixer - W/ Power Supply and Cables | eBay
Infrequent Sound [sex.tex] technology: SQN Electronics Ltd SQN-3 TYPE M Series 2000 Microphone Mixer [broadcast quality mono portable mixer for TV, film & radio / Kudelski's Nagra SNN tape recorder], 1981-1988, made
London & Manchester - SHIFT 4
SQN-4s II Portable Audio Mixer – Phototek Canada
SQN SQN-5S Series II Audio Stereo Microphone Mixer - Missing Four Selector | eBay
SQN-4S Specification
SQN SQN-5S Series II Audio Stereo Microphone Mixer With Signal Cable | eBay