Accuphase AD-2820 Phono Module Trade-In
- For use in top Accuphase preamps (C-2850, C-2900, C-3800, C3900, etc.)
Features & Specifications:
Frequency response
MM/40dB, MC ：20～20,000Hz ±0.2dB
MM/30dB ：20～20,000Hz ±0.3dB
AD maximum input voltage (1 kHz, 0.005% THD)
MM/30dB INPUT ： 310mV
MM/40dB INPUT ： 96.5mV
MC/60dB INPUT ： 9.5mV
MC/70dB INPUT ： 3.2mV
Gain (Gain selector set to 18 dB position, 12/18/24 dB settings available)
AD[MM:30/40dB]INPUT → BALANCED/LINE OUTPUT ：48/58dB
AD[MM:30/40dB]INPUT → REC OUTPUT ：30/40dB
AD[MC:60/70dB]INPUT → BALANCED/LINE OUTPUT ：78/88dB
AD[MC:60/70dB]INPUT → REC OUTPUT ：60/70dB
Input sensitivity and impedance
| Input | Input Sensitivity | Input Impedance | |
| For Rated Output | For 0.5V Output | ||
| AD-MM/30 dB INPUT | 8.0 mV | 2.0 mV | 47 kilohms |
| AD-MM/40 dB INPUT | 2.5 mV | 0.63 mV | 47 kilohms |
| AD-MC/60 dB INPUT | 0.25 mV | 0.063 mV | 10/30/100/300 ohms, switchable |
| AD-MC/70 dB INPUT | 0.08 mV | 0.02 mV | 10/30/100/300 ohms, switchable |
| BALANCED/LINE | 252 mV | 63 mV | 40/20 kilohms, switchable |
Signal-to-Noise Ratio
| Input | Input shorted (A weighting) | EIA S/N |
| S/N ratio at rated output | ||
| AD-MM/30 dB INPUT | 94 dB | 86 dB |
| AD-MM/40 dB INPUT | 85 dB | 86 dB |
| AD-MC/60 dB INPUT | 80 dB | 86 dB |
| AD-MC/70 dB INPUT | 73 dB | 87 dB |
| BALANCED/LINE | 111 dB | 110 dB |
90 Day acX Warranty