¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701
(800) 222-4700 Talk to an expert!
Press Space or Down Arrow to open the quick shopping cart menu. Press Escape to close the menu and return to the Shopping Cart link.
Loading Cart
Your Cart Is Empty

See what's new at Sweetwater.

My Cart this.cartQty

Electro-Harmonix Knockout Attack Equalizer Reissue Pedal , this item is no longer available, below are some similar products you may be interested in.

Electro-Harmonix Knockout Attack Equalizer Reissue Pedal

EQ Pedal with High- and Low-pass Filters and Dry Control
Item ID: Knockout
Sorry, the Electro-Harmonix Knockout Attack Equalizer Reissue 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 Knockout Attack Equalizer Reissue Pedal
Electro-Harmonix Knockout Attack Equalizer Reissue Pedal
Electro-Harmonix Knockout Attack Equalizer Reissue Pedal

Punch up your tone!

With the Knockout Attack Equalizer, Electro-Harmonix packs an amazingly powerful two-filter combination into a stompbox that makes your humbuckers sound like single coils and your Strat sound like a Tele. Place it post-distortion for the heavyweight punch of the metal masters. Knockout is also an awesome add-on to your bass effects rig! The operation is simple with a lowpass filter, a highpass filter, and a dry knob that controls the volume of the dry signal coming from the input jack. Add some punch to your sound with Knockout!

Electro-Harmonix Knockout Attack Equalizer Features:
  • 6-pole High-pass Filter Control
  • 7-pole Low-pass Filter Control
  • Dry Signal Control
  • Low-frequency cutoff at 85Hz
  • High-frequency cutoff at 6.5kHz
Precise tonal control with the Electro-Harmonix Knockout!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

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.