Doctor Q
Analog envelope filter pedal in a compact die-cast case, designed to produce percussive, wah-like filter sweeps that follow picking dynamics. Aimed at guitarists after funk, rhythm and electronic-style filtering. Discontinued in 2020.
- Analog mono envelope filter
- Single Range knob sets the filter's sweep span
- Switchable bass boost
- Responds to picking dynamics
- Die-cast chassis, 4.5 x 2.75 x 2.1 in
- 9V battery included; draws 2mA
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The Doctor Q is a mono analog envelope filter that reacts to how hard the player picks. Harder attack pushes the filter further, giving short, punchy sweeps and wah-like tones without a rocker pedal. It revisits the style of 1970s funk filter boxes in a pocket-sized enclosure.
Control is deliberately simple: a single Range knob sets the frequency span over which the filter moves, and a Bass switch lets more low frequencies through. The bass setting is intended for restoring low end when the filter is set for little or no sweep. A footswitch engages the effect, with an LED showing its state.
The pedal has a quarter-inch input jack and a quarter-inch amp output jack. It runs from an included 9V battery, and an optional 9.6VDC 200mA adapter can be bought separately. The chassis is die-cast metal, and the bypass is buffered.
Vidéo
Spécifications
- Marque
- Electro-Harmonix
- Modèle
- Doctor Q
- Catégorie
- Effets et pédales
Audio
- Circuit
- Analog
- Audio
- Mono
- Bypass
- Buffered Bypass
- Effect type
- Envelope Filter
Controls
- Range control
- Controls the frequency range in which the filter moves
- Bass switch
- Up position allows more low frequencies to pass
- Footswitch
- Engages the effect; LED lit when engaged
Inputs
- Input jack
- ¼" audio input
Outputs
- Amp jack
- ¼" audio output
Power
- Power supply
- 9V battery included
- Optional adapter
- 9.6VDC-200mA (not included)
- Current draw
- 2mA
Physical
- Dimensions (in)
- 4.5 x 2.75 x 2.1
- Chassis
- Die-cast
In the box
- Battery
- 9V battery included