Micro Q-Tron

Envelope Filter
The Micro Q-Tron is a smooth envelope filter with a funky wah-wah tone. The filter is controlled by its internal envelope follower, analyzing the volume of your notes and the dynamics of your playing to directly sweep the filter's center or cutoff frequency. A stronger attack or louder note will produce a wider frequency sweep while softer playing produces more subtle effects. Use the Q control to make the effect more dramatic.

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From the Blog
Posted 1/2/2013



JokeAndRazz shows off the versatility and expressiveness of the EHX Micro Q-Tron.

Posted 9/12/2012



Ryan at Cosmo Music does a quick take on the Micro Q-Tron envelope filter.

Posted 6/18/2012



Lightb4sound demos the EHX Micro Q-Tron, a smooth envelope filter with an expressive wah wah sound.

Posted 5/21/2012



Janusz Frychel lays down a soulful groove and makes great use of the EHX Micro Q-Tron on his bass. The Micro Q-Tron is a smooth envelope filter that creates a funky, organic sound.

Posted 11/29/2011



BenoitBarthelet really gets funky slapping the !@#$ out of his guitar while playing through an EHX Micro Q-Tron Envelope Filter.

Posted 7/5/2011



The Micro Q-Tron... all the way from Bombay!

Posted 3/1/2011



VERY FUNKY DEMO OF THE MICRO Q-TRON BY BASSIST NAHUEL ANTU√ĎA.

 

Posted 10/29/2010

Posted 6/18/2009
Can you crack the code of Riddle & Enigma?

First clue: Mike Beigel landing EHX color in the remote ice fields of Cape Crozier, Antarctica.

Years earlier, back in 1972, Mike also explored new sonic landscapes as inventor/engineer of the world's first stand-alone envelope filter, the Mu-Tron III. The sound was quickly captured by Stevie Wonder, and made famous by his 1973 funk classic, "Higher Ground."

Here's a vintage 1973 performance:

Despite Stevie's personal endorsement (see right) and other noteworthy users like Bootsy Collins and Jerry Garcia, the maker of the Mu-Tron III (Musitronics) closed shop in 1978. Years later, Mike Beigel decided to bring the original Mu-Tron III mojo over to EHX. Mike picks up the story:

"In '94 I met [EHX founder] Mike Matthews at a NAMM show. We talked about effects pedals, and later he asked me if I'd be interested in re-creating the Mu-Tron III for Electro-Harmonix. The new box which is called the Q-Tron, uses the same opto-electronic design of the Mu-Tron III, with new features and improved specs."

Mike and Mike went on to design the EHX Q-Tron, Q-Tron Plus, Micro Q-Tron, Stereo Polyphase, Bi-Filter -- and now, Riddle & Enigma: mysteriously musical envelope filters for guitar and bass.

What about Antarctica? In that same year (1994) Mike Beigel was also hired to design and build a system to track penguins between their nests on the beaches of Antarctica and their aquatic feeding territories. Mike later traveled to Antarctica to install and troubleshoot his system, and remembered to pack his EHX t-shirt. Mike adds: "And yes, I did work on some EHX designs during my spare time in Antarctica!"

While there, Mike also managed to capture amazing photos of the locals:

Riddle & Enigma: welcome to the family.

Posted 11/18/2008

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Quick Specs
True bypass
Drive control sets sensitivity and filter sweep range
Selectable low pass, band pass or high pass filters
Q control sets the filter's bandwidth from smooth to funky
Tough and compact die-cast chassis
9-volt battery included
Optional 96DC-200BI power supply available
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