10A Pre-Amplifier / Dac / Phono

Belles A10 Pre-Amplifier / Dac / Phono

New for the summer of 2013 the Power Modules 10A pre amplifier represents a turning point for the Belles brand; this all new design concept has taken over 12 months to come to fruition. Not just a first class quality line stage pre amplifier but a system controller.

The 10A is a two box unit comprising of a dedicated separate high quality off board power supply which delivers rock solid highly regulated 12Vdc supplies the main pre amplifier.

Belles 10A also features a high end specified phono stage for both MM & MC, this in built phono amplifier is capable of competing with many highly respected stand alone units coupled with truly musical sound.

For the first time a high quality dac (digital to analogue converter) is included in Belles product. Utilising the well respected Wolfson Microelectronics WM8740 chipset with USB and SPDIF inputs the A10 performance in this area is both extremely musical and totally un-digital.

The 10A has five analogue inputs (One pair of fully balanced), two digital inputs (USB and SPDIF both 24/192 Khz), one pair of single ended (RCA) and one pair of fully balanced (XLR) outputs plus both monitor input and outputs RCA giving great flexibility for virtually any audio systems

The Belles 10A solid state stereo reference preamplifier is incredibly musical and supremely flexible performer that will serve at the centre of your audio system for many years with its ability to generate hugely satisfying long term musical enjoyment.

Summing up the A10 is simple:- a superb line level pre amplifier with a matching phono stage and damn fine digital play back all wrapped up in very neat easy on the eye package.


Specifications - General

  • Analogue Inputs: 4 x Rca, 1Xlr 1 Monitor
  • Analogue Outputs: 2 x Rca, 1Xlr,1 Monitor
  • Input Impedance: 30K Ohms (Xlr) 100K Ohms (Rca)
  • Output Impedance: 100 Ohms (Xlr) 50 Ohms (Rca)
  • Max Output: 8.5V Rms (balanced)
  • Gain: 2 x input voltage (6dB)
  • Rated distortion 0.005% IM and THD
  • Frequency response 0.2Hz-150Khz (+/-3dB)
  • S/N Ratio >90dB A weighted
  • Main unit size 432mm X 89mm X 345mm
  • Weight main unit and power supply 19kg

Moving Magnet Specifications

  • Freq response: 20Hz-20Khz (+/-1dB)
  • Hum and Noise: 80dB (1 volt reference)
  • Distortion: Less than 0.01%
  • Imput Impedance: 47K Ohms
  • Max Output: 8.5V Rms (balanced)
  • Gain: 100 x input voltage 40dB @ 1Khz
  • Gain both M&C: 6700 x input voltage 76.5dB @ 1Khz

Moving Coil Specifications

  • Freq response: 0.5Hz-400Khz (+/-3dB)
  • Hum and Noise: 76dB (1 volt reference)
  • Distortion: Less than 0.01%
  • Imput Impedance: 20 Ohms
  • Max Output: 8.5V Rms (balanced)
  • Gain: 67 x input voltage 36.5dB

Digital section Specifications

  • Inputs: USB (type 2) and SPDIF
  • Hum and Noise: 80dB (1 volt reference)
  • D to A: Wolfson 24bit/192Khz
Belles A10 Pre-Amplifier / Dac / Phono Belles A10 Pre-Amplifier / Dac / Phono Belles A10 Pre-Amplifier / Dac / Phono Belles A10 Pre-Amplifier / Dac / Phono Belles A10 Pre-Amplifier / Dac / Phono