The GUP Tech ASTR Douche Edition is a compact modulated delay pedal from Canadian builder GUP Tech. Its core is a 600ms dark digital delay with standard controls, and modulation is added to the feedback path, so repeats smear and move as they decay. GUP Tech describes it as a pedal that "will bring ambiant space tone to your pedalboard," and notes that with the Time knob at zero it becomes a chorus pedal in its own right1.
The ASTR Douche Edition is listed as sold out on GUP Tech's product page as of 26 October 20261.
Where it came from
GUP Tech makes the ASTR Douche Edition alongside a related ASTR Space Delay, and the Douche Edition sits alongside other Douche Edition releases such as the WNR Douche Edition. The pedal's own controls point to what it is: a delay where you set Time, Repeat and mix, and then add modulation to the feedback with the Depth (amplitude), Shape (from smooth to square waves) and Rate (modulation speed) knobs, so a modulated delay that doubles as a chorus is in reach1. Barton Turner uses it on his pedal board and on most of his songs: "I have it on my pedal board and use it on most of my songs"1.
Controls
| Control | What it does |
|---|---|
| Time | Sets the delay time; at zero the pedal works as a chorus1 |
| Repeat | Sets the repeats/feedback1 |
| Mix | Sets the mix1 |
| Depth | Sets the modulation amplitude added to the feedback1 |
| Shape | Sets the modulation waveform, from smooth to square waves1 |
| Rate | Sets the modulation speed1 |
The three modulation controls are the heart of the design. GUP Tech explains that "you add modulation to the feedback with the Depth (amplitude), Shape (from smooth to square waves) and Rate (modulation speed)"1. In practice that means the Depth, Shape and Rate knobs shape how the repeats wobble, from gentle movement to harder-edged square-wave modulation, while Time, Repeat and Mix behave like a standard delay.
Who uses it
Barton Turner of GUP Tech says of the pedal: "I have it on my pedal board and use it on most of my songs"1.
Questions
Is the GUP Tech ASTR analog or digital?
The core of the pedal is digital. GUP Tech describes it as a 600ms dark digital delay with standard controls, with modulation added to the feedback path. So while the character is voiced dark rather than bright, the delay engine itself is digital, not analog.
Can the GUP Tech ASTR be used as a chorus?
Yes. GUP Tech says that with the Time knob at zero, the pedal works as a chorus pedal. The modulation added to the feedback path through the Depth, Shape and Rate controls shapes the chorus effect, and turning Time up turns it back into a modulated delay.
What power does the GUP Tech ASTR need?
The pedal runs on 9VDC center negative and draws 30mA, according to GUP Tech's product page. That is a standard pedalboard supply voltage, though the 30mA draw is worth keeping in mind when budgeting a daisy chain or isolated supply.
Is the GUP Tech ASTR Douche Edition still available?
As of 26 October 2026, GUP Tech's product page lists the ASTR Douche Edition as sold out. The maker has not stated on that page whether or when it will return to production.
Sources (1)
- ASTR - Douche Edition, GUP Tech (guptech.ca)
