icOn 4PRO extra

The ultimate choice for audiophiles with a large single-ended audio system
8 pair RCA sockets with user reconfigurable functions:
6 input & 2 output
5 input & 3 output
5 input & 2 output + 1 line output
AV bypass option
68 steps over a 75 dB range mostly in 1 dB increments
130mm high enclosure (W 134mm x L 260mm)

 3,676 ex. VAT

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
  • 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
  • balance, mute and standby mode
  • LED display with 2 brightness and night mode
  • FET switches for the autoformer taps' selection
  • Dave Slagle autoformers
  • user reconfigurable input / output functions
  • 3 different input / output configuration:
    - 6 RCA IN / 2 RCA OUT
    - 5 RCA IN / 3 RCA OUT
    - 5 RCA IN / 2 RCA OUT + LINE OUT
  • AV bypass option

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