Delivery time 5 weeks from order

Stabilized voltage converter and current filter with specific audio grade performances.

Compatible with all power supplies on the market from 9 to 30v center negative, it has selectable output voltage (9, 12, 15, 18, 24v), with polarity inverter while removing any hum or interference generated by a “bad power supply” source.

Build and hand-assembled one by one in Italy.

Perfect companion of Jad Freer Audio Domino power supply, Edison is a small switching module that allows you to transform any DC voltage, from 9 to 30VDC center negative, into a value selectable among 9,12,15,18, and 24vdc, with reverse polarity option.

The selection of voltage and polarity is very intuitive with two dedicated controls and highlighted by the respective led indicator.

To avoid any unwanted change, both controls are slightly below the enclosure’s surface: you will need to use a pencil / pen or any others pointed objects for editing. Your last setting get automatically stored with no risk at the next power up for the connected equipment.

Edison act also as voltage cleaner, filtering and stabilizing the output voltage of problematic PSU, ensuring your pedals to perform at best with no added noise or hum.

Another great benefit of a well filtered and engineered switching circuit is that it doesn’t generate magnetic fields in the audible bandwidth. This allows Edison and, as all PSU of the Domino line, to perform with no audible interferences with other devices or pickups, and be placed everywhere you need in your pedalboard or setup.

The module can manage up to 1500 mA, but of course the output performance will depend from the power supply source and the selected output voltage: for example, using a PSU that delivers 500mA @ 9vdc, if we want to obtain 18vdc, we’ll have an output of 250mA @ 18vdc:

0,5A x 9vdc = 4,5 Watt

4,5Watt / 18vdc = 0,25A

Safety and durability are two aspects that Jad Freer Audio has always a great attention to: Edison as all other our product has many internal short circuit protection systems that shut down the device before any damage will happen to the connected equipment.

  • voltage converter and audio grade power conditioner
  • can manage up to 1500mA @ 9VDC
  • output voltages: 9/12/15/18/24 VDC with reverse polarity option
  • 9-36 VDC center negative input power supply
  • powers up as per the last setting
  • minimum size and weight
  • no audible magnetic interferences with other devices or pickups
  • short circuit protection

Additional information

Weight0,5 kg
Dimensions6,8 × 4,5 × 3,5 cm

0,2 Kg, without box

Power Supply

9-30 VDC


9VDC, 12VDC, 15VDC, 18VDC, 24VDC


center negative, invertible