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