icOn 4PRO unbalanced preamp

£2,399 ex. VAT

Passive preamp with 5 pair RCA or 2 pair RCA + 2 pair XLR sockets with different input/output configurations, input & output selector, enclosure height 82 mm (W 124mm x L 260mm)


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 / 22.5Vpp
  • Volume step size: 58 x 1 dB and 9 x 2 dB steps (the 2 dB steps are scattered at low volumes)
  • IR remote control: with Apple remote
  • optical encoder and touch button for the manual operations
  • unbalanced signal path with 1 pair autoformer
  • 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 except for the models with XLR sockets and 2 IN / 2 OUT
  • 5 different input / output configurations

- 4 IN / 1 OUT
- 3 IN / 2 OUT
- 2 IN / 2 OUT, no output selector
- 1 XLR + 1 RCA IN / 1 XLR + 1 RCA OUT, in this model the XLR inputs and outputs are electronically balanced and there is no output selector.
- The price of the silver wired autoformer option is under review. We will publish it as soon as we will know the new price.

Shipping cost:
United Kingdom: £35
Europe: £80
United States: £80
Rest of the world: £110

What others say

“I must say the unit is quite transparent, more so than the other preamps I have, and the level of detail is quite impressive.  You obviously have designed a great product and I am quite pleased.”