MXR M77 Custom Badass Modified Overdrive Pedal

Distortion Guitar Effects Pedal
MXR M77 Custom Badass Modified Overdrive Pedal image 1
MXR M77 Custom Badass Modified Overdrive Pedal image 1
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MXR M77 Custom Badass Modified Overdrive Pedal
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Custom Modified Overdrive Pedal

Tone, tone, tone, and more tone. That is what guitar players strive for, the perfect, and somewhat elusive killer tone. Well, the MXR Custom Badass Modified Overdrive has come to the rescue. It is exactly what its name implies a classic overdrive circuit with custom modifications with improved performance and versatility. besides the typical volume, tone and gain controls the Custom Badass Modified OD adds a 100Hz boost/cut knob and a Bump switch that engages an alternate voicing EQ that boost the low and mid frequencies. The MXR Custom Badass Modified Overdrive works great with slightly overdriving a clean amp, or sending an overdriven amp over the edge!

MXR Custom Badass Modified Overdrive Features:
  • Modified classic-overdrive circuit
  • 100Hz boost/cut knob
  • Bump switch that adds a bump in the mid and low EQ ranges
  • True bypass
  • Road-ready metal case
The MXR Custom Badass Modified Overdrive is one slick overdrive pedal that is ready for anything from rock to blues and beyond!

Tech Specs

Pedal Type Distortion
Inputs 1 x Instrument
Outputs 1 x 1/4"
Batteries 1 x 9V
Height 2.5"
Width 4.5"
Depth 5.5"
Weight 0.84 lbs.
Power Supply Included No
Manufacturer Part Number M77

Customer Reviews

Based on 13 reviews
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Killer Overdrive

Had this pedal for 4 years. Never let me down. Easy to dial in. A message to the reviewer who gave this pedal an "I guess..." review. This is a modded Tube Screamer pedal. You cannot expect ANY tube screamer both cheap or boutique to make a solid-state amp sound great. You need a tube amp to get the best results from an overdrive pedal.
Music background: Blues Musician

best matched to H&K tubemeister

i play with american strat though hughes & kettner tubemeister 18. while it's a great amp, with amazing clean channel, it gets very noisy with most overdrive pedals. not with this one. with this poedal i get great smooth sound, and the eq's buttons are great, really helps shaping your tone.
Music background: blues, 70's rock.


Was very impressed! I own many boutique overdrive/distortion pedals. This pedal sounds great! For the price it definitely compares to a few top quality hand built ones. Excellent boost function. I would highly recommend this pedal!
Music background: Ex professional guitar/vocalist. Recording engineer

All The Tone

Needless to say, the four knobs and one button this pedal has to offer gives you all of the tone control you will ever need for whatever the situation. The "Bump" button gives a great boost to the low end of your signal and takes your guitar from rockin the house to shaking the house. In addition, this pedal also works well with MXR's Custom Badass '78 Distortion pedal.
Music background: Hobbyist, Pedal Collector

Best OD pedal

I have tried many OD pedals and this one is by far the best I have used. You can dial in many amazing tones. I can't say enough good about it. Buy one! It looks great too!
See also: Distortion Pedals, MXR, MXR Distortion, Overdrive, Boost & Fuzz