Accuphase AD-2900 Phono Equalizer Module for C-2900

AD-2900 is the dedicated phono equalizer unit. Analog records can be reproduced with high quality by installing AD-2900 in a rear-panel slot. The AD-2900 features separate input circuitry for MC and MM cartridges to ensure optimum matching and realize outstanding S/N ratio. 2 sets of analog-player input jacks, the AD1 and AD2 are equipped, and their selections are switchable with the INPUT selector of pre-amplifiers.

• Contains equalizer units with boards using glass cloth fluorocarbon resin with totally separated left / right channels
  
• Ideal MC/MM independent input circuit to achieve high noise performance
  
• Differential-style equalizer for high-precision RIAA characteristics
  
• Two input terminals to connect up to two tone arms
  
• Functions that can be operated from the front panel
  
• Memory settings for each input terminal
  
• Robust aluminum case to shield against external noise
  
• MC Gain : 64 / 70 dB switching Input impedance : 10 / 30 / 100 / 200 / 300 ohms switching
  
• MM Gain : 34 / 40 dB switching Input impedance : 47 kilohms rated Differential amplifier circuit with ultra low noise bipolar-transistors for MC cartridges.

Specs

Compatibility with other pre-amplifiers (C-2820/C-2420 etc) 

• AD gain MC: 64/70 dB (selectable)
MM: 34/40 dB (selectable)
• Input impedance MC: 10/30/100/200/300 ohms (selectable)
MM: 47 kilohms (fixed)
• Supported models:
C-2900, C-2850 (*1), C-2820 (*2), C-2810 (*3), C-2800 (*3), C-290V (*3),
*1: MC input impedance is 10/30/100/300 ohms.
*2: MC input impedance is 10/30/100/300 ohms. AD gain differs from the front panel display at MM: 34/40 dB and MC: 64/70 dB.
*3: MC input impedance is 10/30/100 ohms. AD gain differs from the front panel display at MM: 34/40 dB and MC: 64/70 d