Electro-Harmonix Knockout Attack Equalizer

Powerful two-filter combination that can make your Les Paul sound like a Strat and your Strat sound like a Tele!

The EHX Knockout is one of the most specific and powerful tonal adjustment systems that you will ever use. The Knockout consists of one Low-Pass filter, one High-Pass filter and a direct dry signal each with its own knob. When combined they yield a very specific and focused tonal sculpture.

Extreme and very specific adjustments are not only simple to set up but also yield a very rich and defined tone that cannot be obtained from an amplifier or much more complex equalizing systems. The curves of the filters were specifically selected for their musical value. They may be used independently to reinforce a specific area but their real value can be heard when all three are used together.

Use after distortion to bring out the heavy weight punch of the metal masters. The Knockout is also truly amazing on Bass. Get ready for the professional sound that you have been waiting for.

Low Knob
Volume control for the low or bass frequencies.

Dry Knob
Volume control for the signal present at the Input Jack.

High Knob
Volume control for the high or treble frequencies.

Output Jack
This 1/4" jack is the output signal.

Input Jack
This 1/4" jack is the audio input.

Footswitch and Status LED
Toggles between effect and bypass modes. When the LED is lit up, the box is in effect mode.