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The Q-Tron Plus Envelope Filter Pedal with Effects Loop and Attack Response Switch from Electro-Harmonix is a Q-Tron enhanced envelope controlled filter and is a powerful tool for musical expression. Envelope controlled filters are unique sound modifiers, and the intensity of the effect is controlled by the user's player dynamics. The volume (also known as the envelope) of the musician's notes is used to control a swept filter. As the volume of your notes changes, so does the peak frequency of the filter. The effects loop gives you the ability to place an additional effect, or chain of effects between the Q-Tron Plus's preamp and filter section without changing the envelope drive. This is particularly important with most distortion devices. The FX loop will also fire up your creative juices to try all sorts of combinations in the effects loop. The added Response Switch selects between a slow, smooth, vowel-like attack and the fast, snaked response of the original Q-Tron. The Q-Tron can be used with a wide variety of electronic instruments.
Selectable low pass, band pass, and high pass filters
Resonant peak control to adjust the filter's Q from subtle to dramatic
High and low frequency response modes
Adjustable gain knob and boost switch
Sweep direction switch for up or down filter sweeps
Tough and compact die-cast chassis
Overload LED: Lights when the envelope follower reaches its maximum signal amplitude
In the Box
Electro-Harmonix Q-Tron Plus Envelope Filter Pedal with Effects Loop and Attack Response Switch
24VDC-100mA External Power Adapter
Limited 1-Year Warranty
Table of Contents
1 x Knob: Gain 1 x Switch: Boost 1 x Switch: Rotary Sweep 1 x Switch: Range 1 x Knob: Peak 1 x Switch: Mode 1 x Footswitch
Input 300 kΩ Output 250Ω
1/4" Phone Jack, input 1/4" Phone Jack, output 1/4" Phone Jack, FX Loop send 1/4" Phone Jack, FX Loop return DC power jack, 24 VDC input
24 VDC, 100 mA
4.75 x 5.75 x 2.50" (146 x 121 x 64 mm)
Electro-Harmonix Q-Tron Plus Envelope Filter Pedal with Effects Loop and Attack Response Switch Review