MXR M237 DC Brick Power Supply Pedalboard

A reliable pedalboard starts with the right power arrangement. The MXR M237 DC Brick is designed to distribute power to multiple guitar effects pedals from one compact unit. It provides eight 9V DC outputs and two 18V DC outputs, giving players a straightforward way to connect common effects and selected pedals that specifically require 18V power.

Ten outputs for a cleaner pedalboard

The M237 offers eight 9V connections and two 18V connections. This is useful for guitarists combining tuners, overdrives, modulation pedals and other effects that need different supply voltages. Its compact format helps reduce loose adapters and makes it easier to organise cables under or around a board. Before connecting any effect, check that its voltage, polarity and current requirements are compatible with the output being used. Not every pedal that accepts a barrel connector has the same power requirements.

Short-circuit and overload protection

The DC Brick incorporates short-circuit and overload protection, with a red indicator LED for each 9V output to help identify a short. This makes troubleshooting faster when a newly connected pedal or cable causes trouble. The indicators are diagnostic aids, not a substitute for confirming a pedal’s power specifications before connecting it.

Included adapter and practical setup advice

MXR supplies the M237 with an external 18V adapter and connection cables for pedals. The unit itself distributes power through its 9V and 18V outputs; it is not a guitar audio effect. Start by listing the power needs of every pedal on your board, then check the available total supply capacity. For pedals with unusual connectors, opposite polarity or high current demands, verify compatibility rather than assuming they can share the same supply.

Who should choose the MXR DC Brick?

The M237 is well suited to guitarists building or expanding a board that needs several conventional 9V connections plus a couple of 18V outputs. Players with particularly noise-sensitive or specialist power requirements should compare the DC Brick with appropriately isolated supplies before buying. Barbad Musical Instruments can help you plan the connections and choose a suitable power solution for your pedals in the UAE.