Technics Kenwood GE-540 LA Audio EQ 231 Korg KEC-42 ADC Sound McVoice Fisher EQ-877 Kenwood KE-7090 Technics Crown Amcron Clatronic SAE MK 27 Mark Restek MTC-5 Dynacord EQ 310 Yamaha EQ-1100 Grundig EQT 210 Fostex 3030 Vivanco 4050 Soundcraftsmen Hitachi X4-Tech EQ-1000 Urei 537 Yamaha EQ-500 Equalizer Soundcraft Denon DE-70 Technics Soundwave Q-900 Rotel RE-1010 ADC Sound Marantz EQ-515 Renkforce Pioneer SG-90 Marantz EQ-315 JVC SEA-50 SAE 2800 Pioneer GR-X Technics McIntosh MQ-102 Urei 537 Accuphase DG-28 Kenwood GE-1100 Wega Modul 42 E Dynacord EQ 310 Technics Technics SH-GE