The MC403 powers more types of pedals and electronics at one time than any previous power supply.

The MC403 Power System-a collaboration between Bob Bradshaw and the MXR design team-is truly the ultimate power supply. The MC403 powers more types of pedals and electronics at one time than any previous power supply unit available. High quality, high performance toroidal transformers ensure quiet operation with superior performance capabilities. Designed for maximum flexibility, the MC403 can be used on pedal boards or rack mounted in a single rack space with the front mount bracket (included). All multi-tap outputs are completely isolated, linear regulated, and shortcircuit protected. Enclosed in a heavy-duty housing, the MC403 is designed for years of rugged road or studio use.


  • Pedalboard power supply built for the demands of the gigging musician
  • 8 x 9-volt DC power outlets are ideal for most pedal designs
  • 4 x 18-volt DC power outlets for pedals that demand more juice
  • 2 adjustable power outlets for achieving your ideal performance from certain pedals
  • 2 x 9-volt AC power outlets
  • All outputs are fully isolated for noise-free operation
  • Rugged internal and external construction handles the gig with ease
  • Can be pedalboard mounted or rackmounted
  • Simple on/off switch




  • Most items are shipped out within 2 business days upon cleared payment
  • Ground shipping is free (orders over $40).
  • Free shipping only to the lower 48 states



D.O'B. Sound and Studios - along with D.O'B. Sound Pro offers: Recording Studios, Rehearsal Studios, Music Production, Guitar Repair, Equipment Rental, Live Sound and Lighting Production, Musical Instruments, Musical Accessories, Pro Audio and Accessories, Concert Promotion Support, Tech Support. We cater to Musicians, Artists, Audio and Lighting Engineers, DJ's, Producers, A/V (Audio Visual) Tech's, Beginners, Hobbyists to Seasoned Professionals all over the United States.