Ground Control Tsukuyomi - Midrange Booster
The Tsukuyomi basically has the same function as the Amaterasu in that it makes your instrument much, much louder, which is nice. The main difference is in the extra tone kick, designed to operate in mids territory instead. If you feel your tone is flat, lifeless and lacks presence, the Tsukuyomi just might be the slap in the face your amp needs. J/k, please be gentle with your amp.
The Tsukuyomi features a 26dB, flat-ish, gain section in series with an optional 12dB of mids gain in the 880Hz-1KHz band.
Ground Control Amaterasu - Bright Preamp
The Amaterasu is best used to bring back some brightness to dull or darker setups such as guitars with humbucker pickups or a bad tinnitus. You can just as well use the Amaterasu with single coils, of course, which will make your tone glassy as heck. All this trebbly goodness will absolutely push your amp’s frontend into incisive bliss and you will enjoy it.
In technical speak, it is a 26dB, mostly flat, gain circuit followed by an optional extra 12dB of treble gain at 3.2KHz.
Ground Control Serpens— Optical Boost/Compressor
Compressors are hard to pull off. Not to toot our own horn but we think we did. The Serpens is a very organic, and very touchy-feely optical compressor. It’s a must-have tool for tappity guitars if you’re playing math or midwest emo, for example. The controls are meant to be more intuitive than theoretical so you don’t need a college degree in sound engineering to operate the pedal.
The Serpens is a feed-forward LED-LDR optical compressor. It has tons of gain on tap and a couple of more subtle tweaks can be done under the hood through a pair of trim potentiometers.
Ground Control Locust — Discrete Distortion
The Locust is the sonic opposite of a hug. It’s meant to be played as loud as you can. It could possibly be used to render an assailant incapacitated. The Locust is best used with heavier or noisier genres. It is not gentle, we warned you.
The Locust is built on a chain of silicon bipolar transistor gain stages and features a very flexible mid-notch tone stack that can be tweaked to your liking, always retaining its guttural character.