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Item # 150409 | Customer Ratings: Ratings ( 5 Based on 4 reviews)

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Electro-Harmonix XO Knockout Attack Equalizer Guitar Effects Pedal
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      Electro-Harmonix XO Knockout Attack Equalizer Guitar Effects Pedal (150409)
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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.




Electro-Harmonix XO Knockout Attack Equalizer 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 4 reviews)
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Viewing Reviews 1 - 3 of 4 |
  • Knockout is a great tone shaping tool

    As reviewed by kevin garcia on 11/5/2012

    I wasnt sure what to expect from this but was kind of disappointed with it in front of amp. In the effects loop this thing is awesome at shaping distortion. I almost returned it because there is volume loss on certain settings wich sound really good but the volume loss was too much for me. So i decided to try this on my subwoofer wich is seperated from my tone by a peavey kosmos and now this thing punches like crazy. It is a great pedal with tons of capabilities besides turning a strat to a les paul etc... A truly distinct tool.

    1 of 1 people found this review helpful.
    Was this review helpful?
  • Tone Monster!

    As reviewed by Karl on 8/13/2009

    This pedal makes any guitar or bass sound like its a thousand dollar instrument. I run my Squier P-Bass special through it and it sounds like my high dollar Fender J Bass. When running it through guitar you can make humbuckers sound like single coils, and single coils sound like an acoustic guitar. I mainly use it for bass, but it is definitely and amazing pedal!

    8 of 9 people found this review helpful.
    Was this review helpful?
  • stratatele

    As reviewed by devin on 1/23/2010

    i got this pedal yesterday and it sounds great. i have an ibanez rg2ex1 not the best on guitars so i wanted to get some god clean tone cause it really doesnt have any, so i got this pedal and its great, and awesome with ssome reverb. noe i use it with my neck and my neck/bridge pickups because it doesnt change the sound to much on just the neck. on the neck it sound like a strat om the neck/bridge it sounds like a stratatele is what i call it. by the way my settings are LOW is only turned .25 inch at 8 oclock, DRY is about 11:56 oclock, and high is all the way turned. ooo and yeah this pedal doesnt help with distorted tones at all but i didnt try it with overdrive.

    1 of 3 people found this review helpful.
    Was this review helpful?
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