This is the product description text that will appear here.
Quantity
1
Wanna boost ? 20db of clean boost, with a bypassable (left switch) preamp (bass and treble control). Right toggle let you switch between the original “Grind” or the “33” EQ.
This, is a three in one, including the old school popular Integrat...
Reviews
5.0
10 ratings
5
4
3
2
1
GrindR EQ - Boost
Delivery was FAST and the packing PERFECT — thank you!
The pedal quality is great. The Gindr is a cool pedal and helped me tame some unwanted low-end rumble. I did have some trouble dialing it in with my setup, as I was getting a fuzz-like coloration that didn’t really work for me (most likely user error on my end).
I remember Guillaume suggesting that your Parametric EQ might be another avenue to explore…. so that’ll be my next GUPtech purchase.
Love what you guys are doing :)
B
Blake · August 29, 2025
GrindR? I barely know 'er.
Fantastic boost - three modes, three different EQ curves. The P boost with the bass and treble is equally great into a clean, broken up, or high gain amp - it works well as an "always on" pedal in this regard. It's possible to set the EQ such that your original signal's lows and highs remain the same, or boosted/cut if desired. Both the Fortin inspired modes are terrific with high gain, low tuned guitars - they add a noticeable spike in the upper mids and shave off some low end to ensure you curb any mud in the sound and cut through. Adore this little box, well done, Gup Tech!
