IOM Control

750.00850.00 ex. VAT

Our high-end stereo 3-channel pre-amplifier.



The IOM Control is IOM’s high-end passive pre-amplifier. It is matching our IOM 500s and 500 mono’s and is a 3-channel control unit for easy selecting input sources and adjusting the volume level with or without our remote.

We did quit a lot of research and attempts to come to the selected set-up & components; looking back to this journey the statement less is more is fitting this pre-amplifier well.

Some features about the IOM Control:

The selector switch is operated manually-only, the on/off and volume is as well manually as remote controllable. The volume control unit is a superb 24-position stereo or quad (for the XLR version) attenuator with gold-plated contacts switching between 1/4W carbon resistors.

To make it remote controllable we developed in house our own stepper interface and matching remote. The stepper is powered via an ESP32 controller.

The power supply is externa/non-integrated to prevent any interference. This power supply is only powering the ESP & stepper (and so zero importance on the sound quality).

Standard on board we added an extra set of outputs for a sub and 2 trigger outputs for users who like to drive and control 2 mono’s.

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Enough about the details, how does it sound? Neutral. Adding nothing. Very transparent. So we think a perfect match to our flagship 500s & 500 mono.


The IOM Control has two versions that you can choose between:

  • unbalanced (RCA)
  • balanced (XLR)

Balanced & unbalanced motorized attenuator

Aluminum IOM remote

Back panel of the RCA version


IOM Control features:

  • Full anodized aluminum enclosure, black
  • Aluminum remote control, silver
  • 2 sets balanced (XLR) & 1 set unbalanced (RCA) stereo inputs for the IOM Control balanced version
  • 3 sets unbalanced (RCA) stereo inputs for the IOM Control unbalanced version
  • Input impedance 10k ohm
  • Suitable for 230V or 115V mains
  • 2 sets 12V trigger output on-board

This product is made/assembled & shipped within 2 weeks after ordering. The IOM Control housing is our own exclusive IOM design. 

Price is displayed without VAT/BTW. If applicable this will be added at checkout.

Additional information

Weight 5.000 kg
Dimensions 21.4 × 30 × 8 cm
unbalanced (RCA) or balanced (XLR)

unbalanced, balanced

Mains voltage selectable by order

230V, 115V


2 sets balanced Neutrik 3 poles (XLR) + 1 set unbalanced (RCA) inputs for the balanced Control (XLR) version
3 sets unbalanced (RCA) inputs for the unbalanced (RCA) Control version


1 x IOM Stereo Control
1 x Mains 12V power supply
1 x Remote




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