SON Electronics Ltd. SQN-4S Series II - Portable Mixer | Reverb
SQN SQN-4S MINI MIXER Stereo, MS, 4 channel, portable, VU meters
SQN-4S Mixer - Trew Audio
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
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