The Electro-Harmonix Riddle is a powerful and precise envelope filter fine-tuned for guitar frequency response.
Sculpt your envelope to reveal a truly expressive tone, with a defined and unique signature. Riddle will deliver tight and smooth control over the complete 80 Hz to 5 kHz range, with a consistent and even sweetness.
Need some edge? Engage Riddle's analog distortion and dial in anything from subtle bite to dominating crush.
You can even plug in an optional expression pedal to control the filter sweep with your foot. With the ability to adjust Q, sweep range, and filter type, you'll also wind up with of the most versatile wahs available.
Riddle: a mysteriously musical envelope filter for guitar.
- (2009-07-08) Riddle - Video by Jack Conte - Envelope Filter for Guitar by Electro-Harmonix
- (2009-07-17) Elliot Randall demonstrates the EH Riddle part 1 by rickair
- (2009-07-17) Elliot Randall demonstrates the EH Riddle part 2 by rickair
- (2009-07-17) Elliot Randall demonstrates the EH Riddle part 3 by rickair
- (2009-07-18) Summer NAMM '09-Electro Harmonix POG2,Riddle: Qballs & More by Premier Guitar
- (2009-09-26) Electro Harmonix - Riddle Demo by GuitarGearComMx
- (2009-10-07) Electro Harmonix Riddle Q-Balls Guitar Effects Pedal by Gear4music
- (2009-12-01) Electro Harmonix Riddle Q Balls envelope filter guitar effects pedal demo by Gearmanndude
- (2010-02-07) Electro-Harmonix - Riddle - Video by Jack Conte - Envelope Filter for Guitar by JRRSHOP02
- (2013-05-07) Electro harmonix, Riddle Q ball. Auto wah / filter demo, Msm Workshop by MSM Workshop
- (2016-12-15) EHX RIddle Envelope Filter Demo by Jack Conte by Electro-Harmonix
- (2017-03-03) EHX Riddle Envelope Filter Demo by Stu Weinberg by Electro-Harmonix
- (2017-03-03) Electro-Harmonix Riddle Envelope Filter Demo by Stu Weinberg by Electro-Harmonix
- (2017-03-17) EHX Riddle Q-Balls Envelope Filter Review by DawsonsMusic