The GUP Tech Double PdeQ GH Tribute edition is an EQ pedal built to emulate the effect of an amplifier's Presence and Resonance/Depth controls. It packs two completely standalone PdeQ circuits into one enclosure, each with its own input and output, and the circuits are not internally linked except for the shared power1. The maker calls the underlying design the "Province DE Quebec" EQ1.
The tribute edition
This version is a super limited color scheme in a matte white box with red graphics, released on 23 December 2023 as a tribute to Gary Holt, whom GUP Tech describes as one of the most notable players using the PdeQ1. If the matte white look is not for you, the maker points to the PdeQ Douche Edition as a more sparkling enclosure option1.
Controls and modes
Each of the two circuits carries the same simple control set1:
| Control | What it does |
|---|---|
| Presence (with on-off toggle) | Emulates the Presence control on your amp |
| Depth (with on-off toggle) | Emulates the Resonance/Depth control on your amp |
The toggles matter beyond simple on and off: with both toggles Off, the pedal acts like a buffer1, so it can double as a buffer in a rig when neither EQ section is in use.
Placement and power
GUP Tech suggests running the PdeQ at the end of your effects loop, just before the return, where the maker says it gives "the extra OOOMMMPHHH and push to get out in the mix and hear yourself better"1.
The pedal draws 40mA at 9Vdc center negative1, a draw worth accounting for on a shared power supply.
The Double PdeQ sits within a wider GUP Tech EQ range that includes the Ti-Q and the PdeQ Special 2025 edition 6th Anniversary1.
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Questions
Does the Double PdeQ GH Tribute edition have two separate circuits?
Yes. GUP Tech describes it as two completely standalone PdeQ circuits that are not internally linked, except for the shared power supply. Each side has its own input and output, so you can run one circuit on each of two amps or loops, or use them in two different places in a single signal chain.
What happens when both toggles are off?
With both the Presence and Depth toggles switched off, GUP Tech says the pedal acts like a buffer. That makes it usable as a signal buffer in a rig even when neither EQ section is engaged.
Where does the PdeQ go in an effects loop?
GUP Tech suggests placing it at the end of your effects loop, just before the return, where the maker says it gives the extra push to get out in the mix and hear yourself better.
Is the Double PdeQ GH Tribute edition limited?
Yes. It is a super limited tribute edition in a matte white box with red graphics, released on 23 December 2023 as a tribute to Gary Holt, whom GUP Tech names as one of the most notable players using the PdeQ. A more sparkling enclosure option, the PdeQ Douche Edition, is also offered.
Where is GUP Tech based?
GUP Tech builds all of its pedals in Saguenay, Québec, Canada, according to the maker's product page.
Sources (1)
- Double PdeQ GH Tribute edition, GUP Tech (guptech.ca), 2023-12-23
Gary Holt
