REVEAL – Boost


In stock


REVEAL is everything we wanted in a boost pedal:

• Sounds Fantastic As A Lead Boost Or An Always-on Tone Sweetener
• Fully Analog Signal Path
• Up to 28 dB of clean boost
• TeaserMode™ switching
• Fully Buffered
• Robust Custom Enclosure

In stock

SKU: GASRVL Category:



We wanted to design a boost pedal that sounds so good, you never want to turn it off.
We wanted a boost pedal with TeaserMode™ switching.
We wanted a boost pedal robust enough to stand up to the rigors of the real world.
We wanted a boost pedal that looks so good, it makes your other pedals jealous.
We think we did it.

One Knob.  Turn It.

One single knob with a stunning 28 dB on tap which goes from less than unity to more than you’ll need.

It’s Your Amp, Drive It.

Drive the input of an amp to add a little hair, or push it as far as it will go.


But don’t just take our word for it…


TeaserMode™ is Grindstone Audio Solution’s system for providing both latching and momentary switching via the same footswitch. Every time you step on the switch, you decide if you need it to turn on and stay on, or only be on while the switch is pressed.

A quick press-and-release will make the switch perform like a latching on-off switch. A longer press and hold will disengage the effect when the switch is released.

Having spent years repairing pedals for touring pros around the globe, we know that the standard latching footswitch is a common point of failure in other pedals.  Knowing the importance of a reliable footswitch, the REVEAL is designed around a heavy-duty non-latching momentary switch.

Fully Buffered Tone Saving

With pedal boards expanding and the additional capacitance that comes from long cable runs, a buffer makes sure that your tone stays true.  REVEAL is fully buffered, whether it is on or off.

Total Package

The custom designed aluminum enclosure is both lightweight and rugged.  Fully anodized and laser engraved for durability.  Jacks are all located on the top of the pedal to help maximize pedal real estate.


We thank the artists who have checked out REVEAL.  Many of them received early prototypes or first-run pedals.  Their feedback helped us to refine the circuit.

Noel Gallagher
Ryan Lewis
Peter Stroud – Sheryl Crow, Big Hat
Steven Drozd – The Flaming Lips
Josh Karp “Budo” – Macklemore and Ryan Lewis
Tim Smith – NGHFB
Mikey Rowe – NGHFB

Sound Clips

– Some Strat with REVEAL

– Strat with REVEAL Off

– Strat with REVEAL at 9:00 (20%)

– Strat with REVEAL at Noon (50%)

– Strat with REVEAL at 3:00 (80%)

– Strat with REVEAL at FULL (100%)

– Les Paul with REVEAL Off

– Les Paul with REVEAL at 9:00 (20%)

– Les Paul with REVEAL at Noon (50%)

– Les Paul with REVEAL at 3:00 (80%)

– Les Paul with REVEAL at FULL (100%)


REVEAL can take power up to 18V, but it will sound just about the same at 9V, so we recommend running it at 9V.

Grindstone pedals use either a standard 9 Volt Battery, or a 9 Volt DC power supply with a 2.1mm negative center barrel. We suggest either pedal-specific, transformer-isolated wall-wart power supplies or supplies with multiple isolated outputs. Cleaner power makes for better tone.

Lifetime Limited Warranty

If it breaks (and it wasn’t abused) we’ll fix it.

Grindstone Audio Solutions stands behind our products and designs.  If your pedal breaks or stops working in the course of normal use, send it back to us and we’ll fix it, no charge.  If it breaks or stops working due to abuse or extreme damage, there may be a charge to fix it.  Contact us.  We don’t design them to be submerged under water or dropped from the top a building.  We do design them for daily use, in the studio or on the road.

Additional information

Weight 16 oz
Dimensions 7 x 4 x 4 in