XM7 Pre Amplifier


 

 

Features

  • Large 200VA custom-made toroidal power transformer
  • High quality all aluminium casework and extruded front panel
  • High quality resistors & capacitors used in the signal path
  • Audio output stages use discrete transistors
  • High quality relays used for input selection
  • 3.5mm & 1/4" headphone outputs selectable by a switch at the back
  • Moving magnet phono input, fixed level AV input and one line level input
  • Two coax ( bnc) and two optical inputs and one class 2 USB input with DSD
  • 2 pairs of pre-amp outputs for bi-amping or sub woofer
  • Remote control
  • Available in black or titanium

 

Specifications

Analogue Inputs

Pre Amplifier Output (input sensitivity / impedance / S/N):

AV input fixed level : 450mV @ 1KHz > 12K ohms S/N > 95dB
AUX/PH input MM : 2.5mV @ 1KHz, 47K ohms S/N > 73dB
Frequency Response : +/-0.5dB 50Hz-20KHz. High pass roll off -1.5dB @ 20Hz
AUX 2 input line : 350mV @ 1KHz > 14K ohms S/N output gain x3.75, +11.5dB
Total Harmonic Distortion : <0.005% at 1KHz : @ 1.3V RMS output
Frequency Response : 20Hz - 20KHz +/- 0.5dB
Signal to Noise Ratio ref 1.3V RMS Output : 1KHz >92dB
Channel Separation @ 20KHz : >60dB

 

Digital Inputs

SPDIF inputs BNC Coax & Optical : 32 - 192KHz @ 16-24 bits
Total Harmonic Distortion : <0.005% at 1KHz @ 1.3V RMS output
Signal to Noise Ratio ref 1.3V RSM Output : 1KHz : >98dB
USB input : Linear PCM 44K1 - 192KHz @ 16-24 bits DSD x64 (DoP) Asynchronous transfer from host

 

Headphone Output

Output Impedance : 10 ohms
Maximum Level into 33 ohms : @ 1KHz & 0.1% THD : 5V RMS
Total Harmonic Distortion : @ 2V output, 1KHz : <0.03%
Maximum Level into 330 ohms : @ 1KHz & 0.1% THD : 8V RMS
Total Harmonic Distortion : @ 2V output, 1KHz : <0.01%

 

General Specifications

Mains Supply : 110/120V or 220/240V @ 50/60Hz (factory set)
Power Consumption : <25W
Dimensions (WxHxD) : 218mm x 89mm x 363mm (inc knob)
Net Weight (unpacked) : 5kg
Gross Weight (packed) : 6kg