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RM748.00 RM850.00
Jim Dunlop MXR M238 Iso-Brick Power Supply 10 fully-isolated outputs- includes 10 DC Cables & 18v Adapter/adaptor
Price RM748.00 RM850.00
Product SKU M238
Brand MXR
Availability Pre-Order
  • Pedalboard-friendly size
  • 10 fully-isolated outputs
  • Quiet, noise-free operation



This power supply is light and pedalboard-friendly with ten fully isolated outputs ranging from 9V to 18V—including two variable 6V–15V outputs—and special noise-reduction circuitry for quiet operation.

This pedal can be powered by the included ECB009 18-volt adapter.

  • Pedalboard-friendly size
  • 10 fully-isolated outputs
  • Quiet, noise-free operation



The Iso-Brick Power Supply is small and light with tons of quiet, noise-free DC power on tap ready to run a wide range of pedal types without crowding or weighing down your pedalboard.

Each of the Iso-Brick Power Supply's 10 outputs is fully isolated, eliminating gig-ending ground loop noise. Whether analog or digital, positive or negative ground, this power box has you covered. The MXR team broke down these 10 outputs to accommodate a variety of voltage and current requirements: two 9V outputs at 100mA, two 9V outputs at 300mA, two 9V outputs at 450mA, two 18V outputs at 250mA, and two variable outputs adjustable from 6V to 15V at 250mA. The two variable outputs can be used to emulate voltage モsag,ヤa drained battery effect sought by many vintage tonechasers.

On top of all that, the Iso-Brick Power Supply comes in a small, lightweight housing that's built like a tank. Features power on/off and connection status LEDs. Put this little box on your pedalboard to make sure it runs reliably and quietly gig after gig.



  1. RED LED indicates bad input power connection
  2. WHITE LED indicates good input power connection
  3. POWER outputs power up to 10 pedals
  4. BLUE LEDs indicate good output power connection
  5. VOLTAGE controls set voltage level of variable 6–15V power outputs
  6. 18V @ 2000mA power input jack



  • Connect included AC adapter into the Iso-Brick Power Supply’s 18V IN jack.
  • Plug the AC adapter into a wall outlet; the white power LED will light.
  • Connect up to six pedals requiring 9V power to the six 9V OUT jacks using the included barrelto-barrel cables. Be sure pedal’s mA rating does not exceed output’s indicated mA rating.
  • Connect up to two pedals requiring 18V power to the two 18V OUT jacks using the included barrel-to-barrel cables. Be sure pedal’s mA rating does not exceed output’s indicated mA rating.
  • Two outputs provide controllable voltage levels, from 6V to 15V. Use VOLTAGE controls to adjust. When using analog pedals requiring 9V power, VOLTAGE controls can be used to reduce power and emulate the effect a dying battery has on certain pedals. Note: Not all analog pedals will operate below 9V. Check with manufacturer for operable voltage range. If your pedal is sensitive to input voltage level, use a voltmeter to set output voltage before connecting pedal. Be sure pedal’s mA rating does not exceed output’s indicated mA rating. WARNING: Some pedals may be damaged if powered using a voltage that exceeds the level required by the manufacturer, e.g. powering a 9V pedal with 15V or 18V. We highly recommend staying at or below manufacturer’s state voltage requirement. Dunlop assumes no responsibility or liability for equipment damage caused by misuse of the Iso-Brick Power Supply.



  • INPUT 18V @ 2 Amps
  • regulated supply (positive barrel 
  • negative center 5.5mm x 2.1mm plug)
  • OUTPUTS 6-15V @ 250mA (2)
  • 18V @ 250mA (2)
  • 9V @ 450mA (2)
  • 9V @ 300mA (2)
  • 9V @ 100mA (2)
  • (all positive barrel negative center 5.5mm x 2.1mm)









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1x Jim Dunlop M238 MXR Iso-Brick Power Supply 10 fully-isolated outputs w/ DC Cables/18v Adapter/adaptor

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