Sony NR-500 DBX SNR-1 Fisher NR-500 ANT 232 Telcom Technics Aiwa HR-50 Telefunken Telefunken ANT ES4 Telcom Nakamichi Tascam DX-4 D ANT e 124 Sanyo Plus N 33 Nakamichi Nakamichi DBX 224X-DS Rebis 6-Kanal Behringer SNR Nakamichi Rotel RN-500 Nakamichi JVC NR-50 Telefunken Nakamichi Nakamichi Dolby Mod. 363 Phase Linear DBX 222 Type II Telefunken Toshiba Aurex Nakamichi Teac RX-9 DBX Nakamichi Nakamichi DBX SNR-1 Dolby Mod. 363 Phase Linear Rotel RN-500 Rotel RN-1000 Nakamichi Nakamichi Nakamichi Behringer Roth RX-NR4 SAE 5000 Nakamichi