Doctor Q

Envelope Filter
The classic 1970's funk box now available in a pocket-sized case. Dynamic picking response produces super-funky wah-like tones. The Doctor Q is an envelope filter that specializes in generating percussive punchy filter sweeps for a rhythmic groove.

Featured Videos
To open the full video playlist in YouTube, click here.
To suggest a video, send email to:
From the Blog
Posted 8/8/2013


Buskerdude69 shows of funky slap guitar skills with the Doctor Q Envelope Filter.


Posted 2/21/2013



Skinny Music TV reports on five EHX pedals.

       

Posted 7/27/2012



Ben Wilshire funks up on bass with the EHX Doctor Q envelope filter

Submissions to EHX.com
Do you have something that you'd like to share with the Electro-Harmonix community? (a tip on getting a great sound, a cool site, a video, or whatever?) Please send your suggestions to:

mouse over image to zoom
Quick Specs
True bypass
Simple one-knob range control
Switch-selectable bass boost
Responds to your personal picking style
Tough and compact die-cast chassis
9-volt battery included
Optional US96DC-200BI power supply available
The EHX Community
Here are a few easy ways to stay informed on the latest news from Electro-Harmonix...
Forums (Discussion & Support)
Have a question, comment, suggestion? Come join the EHX Forums! You'll meet EHX staff and knowledgable users from around the world.

EHX Merch Shop
Show your colors with an EHX t-shirt -- you can even custom design your own shirt from scratch!
Our new EH Strings allow you to capture every nuance of your playing style with lightning fast playability. Made of a pure nickel wrap with a specially-selected stainless steel, these sweet-sounding round wounds are truly like no other strings you've played. Not only do they last longer and stay in tune longer, but we think they're the best sounding strings ever made. Available in 9s, 10s and 11s.
Electro-Harmonix | www.ehx.com | Blog | Forums | Merch
YouTube.com/ehx | MySpace.com/ehx | Facebook.com/ehx | Twitter.com/ehx