Exposure XM3 Phono Amplifier

The XM3 phono stage is switchable between MM and MC. 

At the heart is a large (200VA) toroidal transformer with multiple electrolytic capacitors in parallel for a low ESR, meaning that the supply is clean and able to supply current demands very quickly.

This powers an all discrete signal path which uses high quality resistors and capacitors.

Technical specifications:

Frequency Response: 30Hz - 20kHz within +/- 0.25dB ref 1kHz with low frequency roll off below 30Hz
Maximum Output Voltage: 7.8V RMS 1kHz
Output Impedance: 50 Ohms

Moving Magnet Input
Sensitivity: 3.5mV input for 350mV output, 40dB gain setting
Signal to Noise Ratio: ref 1kHz & 350mV out: Gain Switch 4 ON : >70dB & Gain Switch 4 OFF : >78dB

Moving Coil Input
Sensitivity: 350uV input for 350mV output, 60dB gain setting 
Signal to Noise Ratio: ref 1kHz & 350mV out: >67db A weighted. ALL gain switches (4-6)

Power Consumption: <25w
Dimensions (HxWxD): 89mm x 218mm x 348mm
Net Weight: 4kg
Gross Weight: 5kg