Urei 537 Hitachi Renkforce LA Audio EQ 231 Technics SH-GE Yamaha EQ-1100 Kenwood GE-540 McIntosh MQ-102 ADC Sound Soundwave Q-900 Urei 537 Technics Vivanco 4050 Wega Modul 42 E Kenwood KE-7090 Technics Siemens RQ-300 Kenwood GE-1100 Equalizer Clatronic SAE 2800 Pioneer SG-540 Pioneer GR-X Fostex 3030 Accuphase DG-28 Technics Denon DE-70 Kenwood GE-56 Rotel RE-1010 Thel EQ1-HQ 4 Accuphase DG-28 Dynacord EQ 310 X4-Tech EQ-1000 Kenwood GE-87 JVC SEA-50 Marantz EQ-515 Ibanez GE 1502 Marantz EQ-20 Marantz EQ-315 Soundcraft Korg KEC-42 Crown Amcron J-Audio B.A.M Technics Technics Dynacord EQ 310