Turn your guitar into a sonic chameleon!

The Electro-Harmonix Knockout Pedal can give your tone the heavyweight punch it deserves. Two powerful filters are the key - make your humbuckers sound like single coil pickups and your Strat sound like a Tele. Amazing on bass!

The Knockout Attack Equallizer lets you tweak the high-pass and low-pass filters, changing your sound from Gibson to Strat to Telecaster, with innumerable shades in between.

Electro-Harmonix XO Knockout Attack Equalizer Guitar Effects Pedal Features:

• Controls: Low, Dry, High.
• 1/4" input and output
• DC power input for battery replacement.
• LED indicates whether effect is engaged or bypassed.

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Electro-Harmonix XO Knockout Attack Equalizer Guitar Effects Pedal

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Average of 7 User Ratings

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Customer Reviews

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Great pedal

Posted by Neverdweller from Butler TN on Apr 5, 2009

Experience w/product: I own it

Reviewer's Background: Active musician baby

Reviewer's Play Style: Metal/Thrash/Doom

I have been using it for quite some time and as many have stated at first I was a little disappointed BUT after tweaking and playing with it a ton I realized this pedal is freaking amazing and can really change your tone, if your looking for a different kind of sound to add in with your other effects or just need some more... punch as it were, buy this pedal ;)

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Total Knock-Out

Posted by Latrainia from Beaufort, SC on Oct 15, 2008

Experience w/product: I own it

Reviewer's Background: Active Musician

Reviewer's Play Style: HxC, Metal, Rock, Blues, Country, Christian, etc.

This is a great pedal!!! At first I was dissapointed cause I wasn't getting the tone I wanted, but after a little more tweaking and messing around with the extremes I found what I had been looking for, and this pedal is great for any kind of guitar, I have a Fender Strat, an ESP explorer, and a Yamaha Acoustic...sounds great on all three of em! This is a must have for tone freaks!

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A Must

Posted by david Cambrin from europe on Aug 1, 2008

Experience w/product: I own it

Reviewer's Background: professional

Reviewer's Play Style: rock, folk, blues, country, pop, my own alchemy.

Swell desert island pedal-it does what they say it does just great. Here's my angle on it- it also works fab on an acoustic guitar with pickup going into an electric guitar amp (if you don't have an acoustic guitar amp). I tried it on my acoustic running into a Vox DA10 and it sounds wonderful. An acoustic guitar into a electric git amp otherwise sounds pretty honky and mid-rangy and unlovely but this pedal changes all that. Highly recommended for all sorts of applications. I bought a second one.

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A Knockout indeed!

Posted by Dwindhym from Shreveport, LA on Apr 18, 2008

Experience w/product: I have used it

Reviewer's Background: Guitar Tech

Reviewer's Play Style: Blues/Experimental

The Electro-Harmonix Knockout Pedal is seriously one of the most convenient pedals I've ever used! I'm not sure how to explain it...but it's the perfect secret to getting that perfect tone you have in your head! I've spent so much time with equalizers and boosters trying to get the right sounds out of my strat...but with this thing I sat down and dialed in a mighty Les Paul metal tone in moments! Some may find fault with the simple controls, but I think it only adds to the convenience! You don't have to sit for three hours playing with knobs and sliders. You just turn and go. I dig it.

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A Little Heavyweight Contender

Posted by Dan V. from Penllyn, PA on Jan 8, 2008

Experience w/product: I own it

Reviewer's Background: Guitarist/Bassist/Composer

Reviewer's Play Style: Rock, Blues, Flamenco, Classical

I own a Epiphone Valve Junior head and Cabinet so I needed a little control over my eq. I purchased the Electro-Harmonix Knockout pedal, and it gave it just the sparkle, edge and low end punch without being overly harsh like so many EQ's tend to do. Like all EQ's you need to find a sound you like. I especially like the middle knob label 'Dry'. This knob has special filters so you can tweek your mid's and take out the upper mid harshness out of a lot of humbuckers. Then you can tweek it the other way and beef up your skinny coils, (I mean single coils:) Over all I rate it a 4.5. Good sound and good value for the money.

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Electro-Harmonix XO Knockout Attack Equalizer Guitar Effects Pedal

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