Controls
- Drive (Up/Down)
- selects direction of filter sweep : upwards or downwards.
- Norm/Boost
- Normal mode allows setting the Gain control without changing the output volume.
- Peak
- Determines frequency peak of filter. Makes more "effected sound" when turned up more.
- Gain
- Functions as both a volume control and a filter sensitivity control in boost mode. In normal mode it acts only as a filter sensitivity control, unlike the Mutron-III which also changes the unit's output volume.
- Range (Hi/Lo)
- Emphasizes vowel like sounds in low position, overtones in high position.
- Mode (LP/BP/HP/Mix)
- Select the filter used by the effect: Lowpass, Bandpass, Highpass or a mix of Bandpass with dry unprocessed sound.
Information
Designed by Mike Beigel, inventor of the legendary Mu-Tron III envelope filter.
Electro-Harmonix
Improve your Groove!
The Electro-Harmonix Q-Tron - the phattest, funkiest envelope filter ever made! Features like switchable Boost and Filter Mix mode allow for an unlimited supply of all-new auto-wah effects that drip with attitude. Increased frequency response and improved signal-to-noise ratio make the Q-Tron perfect for use with any instrument.
Bootsy Collins and George Clinton already have theirs. How about you?
Video
(2008-04-11) Electro-Harmonix Q-Tron with the Korg R3 by GearWire
Audio
(1970-01-01) Electro-Harmonix (vintage) Q-Tron: EHX Q-Tron Demo
electroharmonix ehx eh electro-harmonics electroharmonics qtron
