The Reference 40 is a MM and MC stand-alone phono amplifier. It features an external power transformer, power supply with tube rectification, Amorphous core MC step-up transformer and a point-to-point wiring with layout for the lowest noise. CCS (constant current source) on the output stage lowers output impedance and gives enough drive for a TVC.

Specification:
Control Functions: Power On/Off , Switch MM / MC and Switch High / Low
Harmonic Distortion: 0.01% ( for 2V RMS at output )
Input Impedance: 47k ohms( MM ) , 5 ohm~ 400 ohm( MC )
Input Gain: 40dB (MM ) / 66 dB ( MC ,10 times)/ 57dB(MC ,5 times)
Input Interfaces: 1 group (RCA)
Output Interfaces: 1 group (RCA)
Grounding Interfaces: 1 group
Signal/Noise: 80dB(MM),70dB(MC)
Consumption: 10watt
Vacuum Tube: 12AX7 x 2, EZ80 x1
Dimensions: 440 (L) x260(W)x100 (H)mm
Weight: 15 kg (packed)