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Electro-Harmonix Operation Overlord Allied Overdrive Pedal , this item is no longer available, below are some similar products you may be interested in.

Electro-Harmonix Operation Overlord Allied Overdrive Pedal

Overdrive Effects Pedal with Stereo I/O, Input Level Control, Independent Variable Boost, and Dry Signal Blend
Item ID: Overlord
Sorry, the Electro-Harmonix Operation Overlord Allied Overdrive Pedal is no longer available. We've left this page up for reference only.
Check out the great alternatives on this page or call toll-free (800) 222-4700 to speak with a Sweetwater Sales Engineer about similar products.
Electro-Harmonix Operation Overlord Allied Overdrive Pedal
Electro-Harmonix Operation Overlord Allied Overdrive Pedal
Electro-Harmonix Operation Overlord Allied Overdrive Pedal

FET-based Overdrive for Guitar, Bass, and Keys

This article was Written By

Our Product Research Team

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The Electro-Harmonix Operation Overlord overdrive effects pedal originated from the idea of giving keys players a way to add great-sounding grit to their sounds. But the guitarists at EHX quickly realized that the Overlord's FET-based overdrive delivered the tube amp-like tone and feel that guitarists clamor for. So the company went about adding even more guitarist-friendly features, such as an independently footswitchable boost, a dry blend, and more. No matter how you intend to run your EHX Overlord, it's sure to deliver the warm and gritty tones you're after.

Great for any electric instrument

The original inspiration for the Electro-Harmonix Operation Overlord was to allow keys players to access the gritty, tube-style overdrive that guitarists have enjoyed for decades. But when plugged into a standard guitar rig, the Overlord sings with an amp-in-a-box type of tone that will make it the centerpiece of any guitarist's setup. A powerful onboard 3-band EQ shapes the tone, while the huge-sounding bass knob makes the pedal a great option for bass players as well.

Tube-like overdrive and response

The EHX Overlord utilizes a FET-based overdrive circuit to offer grit that goes from jangly breakup to all-out fuzz. Because of its design, the pedal responds extremely well to your playing dynamics and volume knob manipulations. It's much like putting your favorite tube amp right on your pedalboard. And Sweetwater players immediately noticed that the bass control is especially helpful for giving your open-back combos the huge low-end punch of a sealed 4 x 12" cabinet.

More features than meets the eye

EHX is famous for cramming a huge amount of tone-shaping options into unassuming pedal designs, and the Overlord overdrive is no different. Along with the pedal's 3-band EQ and dirty tones come an independently footswitchable boost. This boost is placed before the overdrive circuit to push your tone into fuzzy territory that remains touch responsive. Stereo I/O will be a huge benefit to keys players and musicians who run stereo rigs. And the pedal's Dry control allows you to blend your unaffected signal back in for added clarity.

Electro-Harmonix Operation Overlord Features:

  • FET-based overdrive that works equally well on keyboard, bass, and guitar
  • FET overdrive offers a tube amp-like tone and feel
  • Independently footswitchable boost is 100% variable
  • Dry control allows you to blend in your unaffected tone
  • Input level switch optimizes the pedal to your instrument
  • Stereo inputs and outputs are fantastic for use with keyboards
  • 3-band EQ for dialing in your tone

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.