Rebis 6-Kanal JVC NR-50 DBX SNR-1 DBX SNR-1 Nakamichi Phase Linear Tascam DX-4 D Sanyo Plus N 33 Dolby Mod. 363 Tascam DX-4 D Nakamichi Nakamichi SAE 5000 Fisher NR-500 Nakamichi ANT ES4 Telcom Telefunken Sony NR-500 DBX 224X-DS Nakamichi Dolby Mod. 363 Rotel RN-1000 Nakamichi Telefunken Nakamichi Nakamichi Rotel RN-500 Rotel RN-500 Technics Toshiba Aurex Tascam DX-4 D Nakamichi Tascam DX-4 D DBX 222 Type II Tascam DX-4 D Nakamichi Roth RX-NR4 Nakamichi Nakamichi Aiwa HR-50 Nakamichi Teac RX-9 DBX ANT 232 Telcom Phase Linear Behringer SNR Sony NR-500