icOn 4PRO balanced preamp

$ 4,950 ex. VAT

Remote controlled passive preamp with 68 steps and 2 different input/output configurations, truly balanced with 2 pairs of autoformers, input and output selector,120mm high enclosure (W 134mm x L 260mm)

The input signal should be differential balanced with ground reference. The “floating” balanced signal (from an output transformer) can be handled as single-ended only.


After receiving your order we will confirm the expected delivery date and send you a proforma invoice for a 50% deposit, please read the T&C for more information. Please do not ask us to undervalue customs declarations. Customs duties and VAT are governmental taxes and not paying them is actually committing fraud and against the law. We won’t risk being sued for tax evasion. Thank you for your kind understanding. If you have any questions or need more details please contact us.


  • Volume positions: 68
  • Volume range: 75 dB, from +3dB to -72 dB
  • Max. input level: 8V RMS single-ended / 16 V RMS differential balanced
  • Volume step size: 58 x 1 dB, 7 x 2 dB steps & 1x3dB (which are scattered at low volumes)
  • IR remote control: with Apple remote
  • optical encoder and touch button for the manual operations
  • true balanced with 2 pair autoformers
  • balance, mute and standby mode
  • AV pass-through as an option
  • LED display with 2 brightness and night mode
  • FET switches for the autoformer taps' selection
  • Dave Slagle autoformers
  • remote-controlled output selector
  • 2 different input / output configuration:
    - 4 XLR IN / 1 XLR OUT
    - 3 XLR IN / 2 XLR OUT

Shipping cost:
United Kingdom: $60
Europe: $130
United States: $130
Rest of the world: $160

What others say

“The first listen gave me a pleasant smile. The audio comes through liquid, smooth and airy. I can just say, that I can retrace everything that I have read in the web about the icOn. Congratulations for creating such an outstanding device.”