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