ELECTRO-HARMONIX Q-TRON Envelope Filter

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