Accuphase AD 2850 Phono Equalizer

Phono equalizer unit succeeding AD-2820. Newly designed ultra-low noise transistor differential amplifier circuit for MC and ultra-low noise FET differential amplifier circuit for MM. Optimized MC/MM amplifier circuit achieves low noise and low distortion while reducing power consumption. RIAA circuit uses two high-precision equalizer elements to cancel errors and achieve high-precision RIAA characteristics.

C-2820/C-2810/C-2800/C-2420/C-2410/C-2400/C-290V/C-290 can be used. However, MC input impedance: 300Ω cannot be used with other models than C-2850/C-2820/C2420 because there is no position indication on the panel. Furthermore, contrary to the knob indication, it is MC<60dB, 70dB>, MM<30dB, 40dB>.