The World Famous Crazy Dave's Music is proud to present the ELECTRO-HARMONIX Q-TRON Envelope Filter. Improve your Groove. The phattest, funkiest envelope filter ever made! Switchable Boost and Filter modes allow for an unlimited supply of 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? True bypass Selectable low pass, band pass and high pass filters Resonant peak control to adjust the filter's Q from subtle to dramatic Hi and lo frequency response modes Adjustable gain knob and boost switch Sweep direction switch for up or down filter sweeps Tough and compact die-cast chassis 24DC-100 power supply included Crazy Dave's is an authorized seller of Electro-Harmonix products. We also match any new price. Full factory warranty is included with purchase. Free Shipping. Thanks for shopping at world-famous CRAZY DAVE'S MUSIC! Serving local music everywhere since 1991 904-276-2472 Crazy Dave's Music Hours of Operation: Monday-Friday 10am-6pm and Saturday 10am-5pm Eastern Standard Time Crazy Dave's Music ships worldwide. Shipping cost does not include any import or customs taxes or duties. Those duties are the sole responsibility of the purchaser and cannot be paid by Crazy Dave's Music. | 
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