I. Q. System Tascam DV-RA Tascam 122 Kenwood KD-990 Linn Majik LP Akai GX-635 DB Parasound JBL 250 Ti B W CM9 Nottingham Revox B-215 S Marantz PM-14 JBL TI-5000 JBL L100 Yamaha A-S 801 Solid State Luxman L-530 EMT 948 Audioplan Audio Physic Tandberg TD-20 Transrotor Zet Rogers LS 3 5 A Revox B-215 Elac 213 4-P Sony PSE-4000 Mark Levinson Dual 1229 Dual CS 550 NEU Pioneer C-73 Onkyo P-3090 Lectron JH-50 Accuphase P-600 Marantz PM-17 SAC Mediatore Bose 1800 Marantz SA-15 T A PA 1220 R Bose 1800 Tannoy D700 Nakamichi CA-5 Audiodata Dynaudio Audio Research Thorens Zoffmusic Titan