Renkforce Soundcraft ADC Sound LA Audio EQ 231 Soundcraftsmen Technics Technics Clatronic Dynacord EQ 310 Accuphase DG-28 JVC SEA-50 Vivanco 4050 Sony SEQ-310 Bose 901 IV Fostex 3030 McVoice Denon DE-70 ADC Sound Technics Onkyo EQ-31 Hitachi Grundig EQT 210 Restek MTC-5 Equalizer Ibanez GE 1502 SAE MK 27 Mark Technics Urei 537 Technics Pioneer GR-X Yamaha EQ-1100 SAE 2800 Kenwood GE-1100 Soundwave Q-900 McIntosh MQ-102 Kenwood GE-540 Urei 537 Dynacord EQ 310 Wega Modul 42 E Sony SE- P 900 Korg KEC-42 Marantz EQ-315 Pioneer SG-90 Technics X4-Tech EQ-1000 Kenwood KE-7090