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Item # 103840526 | Customer Ratings: Ratings ( 5 Based on 47 reviews)

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Electro-Harmonix XO Metal Muff with Top Boost Distortion Guitar Effects Pedal
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      Electro-Harmonix XO Metal Muff with Top Boost Distortion Guitar Effects Pedal (103840526)
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The pit bull of distortion boxes.

The Electro-Harmonix Metal Muff with Top Boost features 3 powerful EQ bands that are ideal for sculpting mids and a total of 6 controls for shaping sound precisely your way. Top Boost adds serious bite with its own control knob and footswitch button.

Electro-Harmonix XO Metal Muff with Top Boost Distortion Guitar Effects Pedal Features:

  • Volume, Top Boost, Treble, Mid, Bass, and Distortion knobs
    Boost and bypass footswitches


Electro-Harmonix XO Metal Muff with Top Boost Distortion Guitar Effects Pedal Specifications:

  • DISTORTION CONTROL — adjusts the amount of input gain.
    The optional 9V power supply from Electro-Harmonix is US96DC-200BI 9.6 volts/DC 200ma. The barrel connector on the front of the METAL MUFF is for the 9-volt battery eliminator capable of delivering 100 mA of current. The inner ring of the 9-volt battery eliminator must be negative, the outer ring positive.


Electro-Harmonix XO Metal Muff with Top Boost Distortion Guitar Effects Pedal

One year warranty on pedals. 90 day warranty on all other products.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 47 reviews)
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Viewing Reviews 1 - 3 of 47 |
  • Thunder in the black box !

    As reviewed by Boonie Rat on 10/18/2006

    If you wanna ride the lightning,get this stomper! I went to my local GC (Ft.Wayne,IN)dragging in my 20 year old Peavey amp to find anything to make it ROCK, and with alot of patience from my salesman,we plugged in different digitech and boss models but they just couldn't bring the old solid state around 'till he says to me"I know what ya need!". He came back with ARMAGEDDON in a box,the METAL MUFF.This thing grabbed my amp by the balls and hasn't let go since! With it's low,mid,high settings plus boost and volume control,you can't ask for a better monster metal stomp box.This thing crunches,grinds,chomps,whails and screams with sustain and authority, and it's made right here in the great U.S.A.! I can't wait to hear it plugged in to a more "suitable" amp, but for now I'm havin' fun with my old junker with a new bionic heart! If you're lookin' for a box that'll rip your guts out,buy EHX METAL MUFF.You can't and won't be dissapointed. Thanks Ft. Wayne Guitar Center, I'll be back!

    7 of 7 people found this review helpful.
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  • The METAL MUFF... enough said

    As reviewed by Josh on 8/29/2010

    I bought this pedal about 2 years ago when I was looking for a reliable solid distortion to put in front of my Marshall half stack. I blind bought this, and honestly, I'm glad that I did. Rich distortion tone, amazing EQ on the pedal... and the distortion is so thick that sometimes I had to turn the Gain knob down onstage to keep the hiss down. :D . The only complaint I have is that the AC adapter is a must, with top boost on, the battery will drain in a 2-3 hour band practice.

    3 of 3 people found this review helpful.
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  • metal muff

    As reviewed by Danilo Bisnar on 7/30/2009

    dear guitar center, I've tried a lot of different distortion pedals and fuzz tones but it never satisfied my inner self better than this metal muff. I feel like I don't wanna stop playing with it even in the middle of the night and adjusting it to the near perfect adjustment.It's really cool and never regret having it,and so is the price. Thank you guys for continually making innovations more aggresive for the benefit of music and musicians as well.

    2 of 2 people found this review helpful.
    Was this review helpful?
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