MXR M238 Iso-Brick Power Supply for Guitar Pedal

MXR M238 Iso-Brick Power Supply – Professional Pedalboard Power with Ten Fully Isolated Outputs

Small and Light. Tons of Quiet, Noise-Free Power.

The MXR 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. 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.

Ten Fully Isolated Outputs

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

• Two variable outputs adjustable from 6V to 15V at 250mA

Variable Outputs for Vintage Voltage Sag

The two variable outputs can be used to emulate voltage "sag," the drained battery effect sought by many vintage tonechasers. This feature allows you to dial in the exact voltage to achieve that sought-after vintage tone, replicating the sound of a dying battery in classic fuzz and overdrive pedals.

Special Noise-Reduction Circuitry

The Iso-Brick Power Supply features special noise-reduction circuitry for quiet operation, ensuring your pedalboard remains free from unwanted hum and interference. This makes it ideal for recording studios, live performances, and any situation where clean, reliable power is essential.

Built Like a Tank

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.

Key Features

• Ten Fully Isolated Outputs: Eliminate ground loop noise for quiet, reliable performance

• Versatile Voltage Options: 9V, 18V, and variable 6V–15V outputs to accommodate any pedal

• Variable Outputs for Voltage Sag: Emulate drained battery effect for vintage tone

• Special Noise-Reduction Circuitry: Quiet operation for recording and live performance

• Handles Analog and Digital Pedals: Positive or negative ground compatibility

• Compact and Lightweight: Small, pedalboard-friendly housing that won't weigh you down

• Built Like a Tank: Durable construction for years of reliable use

• Power On/Off and Status LEDs: Easy visual confirmation of power and connections

• Road-Ready: Reliable performance from gig to gig

Specifications

• Model: M238

• Outputs: 10 fully isolated

• Output 1-2: 9V DC, 100mA each

• Output 3-4: 9V DC, 300mA each

• Output 5-6: 9V DC, 450mA each

• Output 7-8: 18V DC, 250mA each

• Output 9-10: Variable 6V–15V DC, 250mA each

• Ground: Handles negative and positive grounds

• Noise Reduction: Special noise-reduction circuitry

• Indicators: Power on/off and connection status LEDs

• Housing: Small, lightweight, durable construction

• Power Requirement: Standard AC adapter (included)

• Country of Origin: USA

Why Choose the MXR M238 Iso-Brick Power Supply?

For musicians who need reliable, noise-free power for complex pedalboards, the MXR Iso-Brick Power Supply delivers. Its ten fully isolated outputs eliminate ground loop noise, while the versatile voltage options—including two variable outputs for voltage sag—accommodate almost any pedal configuration. The special noise-reduction circuitry ensures quiet operation, and the rugged, lightweight construction means your pedalboard stays powered from gig to gig. Whether you're building a studio board or a touring rig, this little box has everything you need.

Professional power. Versatile outputs. Built to perform.