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Norma Audio Revo SC-2B Preamplifier

Norma Audio Revo SC-2B Preamplifier

With the REVO SC-2 preamplifier, pure and elegant style merges with refined technology. With a full function remote, the REVO SC-2 model uses the exclusive P.D.D.A. (Programmable Digital Analogue Attenuation) volume control. This system attenuates between 0.0 dB and -127.0 dB in steps of 0.5 dB, with a typical precision of +/- 0.01 dB.

The input selection uses high-quality relays with no integrated circuits used in the signal path. The whole concept of the REVO SC-2 is to combine a modern function with true High-End performance. Its plasma display with adjustable brightness is always clearly visible, while combining simplicity and comfort with extraordinary versatility. The SC-2 preamplifier can be mounted with a Phono stage, an integrated DAC, and also customized for multichannel audio. To add further versatility, you can also use this preamplifier in passive or active mode.



  • Extreme low noise, high speed schematic topology and wide band ( >2 MHz ).
  • High filtering capacity (51.000 uF) with numerous (23) capacitors, to achieve low impedance.
  • Toroidal power transformers specially designed for audio applications, low flow dispersion, low mechanical noise, high permeability magnetic core with consequent low output impedance.
  • Full aluminium non-magnetic frame.
  • Inputs & Outputs configurable RCA (unbalanced) & XLR (balanced)
  • Inputs selection by relay with GOLD/PALLADIUM contacts.
  • RCA solid core gold plated plug connector for any signal connections.
  • P.D.A.A. Programmable Digital Analogue Attenuation, volume control
  • 0.5 dB step an 127.5 dB range attenuation, made by relays and high quality precision resistors.
  • Active or Passive modality for best audio performance.
  • Possibility of set the PHONO board inside, by 2 mono board for Left & Right channel.
  • High quality phono stage, for MM and MC pick-ups.
  • Two free slots for future upgrades.
  • Possibilities of upgrades with MCH-6 (Multichannel board with 2 set of 6 inputs, outputs) for Audio-Video application.
  • Possibilities of upgrades with DAC Board with USB & SPDIF inputs, 24 Bit, 192 kHz resolution.
  • Remote control of all functions with NORMA remote control.




  • Input: 4 RCA, 2 XLR Balanced, Optional Phono at INPUT 1
  • Input Impedance: 47Kohm (not selected input) / 10 Kohm (Selected Input)
  • Input Configuration: Phono MM/MC, Line, Balanced, Multichannel & DAC option
  • Output: 1 RCA, 1 XLR Balanced
  • Output Impedance: 220 ohm
  • Output Voltage: 7.5 V r.m.s.
  • Frequency Response: 0 Hz – 2.0 MHz (-3dB, non filtered)
  • Gain: 17.5 dB Active mode, 0 dB Passive mode
  • Circuitation: Solid state, Dual Mono, hi speed, low noise
  • Supply: 230 V AC / 50 Hz (100V AC or 115 VAC / 50-60Hz in some countries)
  • Dimensions (HxWxD): 110 x 430 x 365 mm
  • Weight: 15 Kg
  • Note: Stereophonic Preamplifier completely RC
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