Ground Zero Ampworks. Boutique amps. Mods. Tone.

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A sonic powerhouse, the Hellion 100 V2 is the Ground Zero, Inc. flagship model. 

Hellion is the culmination of years of research and design, resulting in the most versatile single-channel amp available. From clean, to blues, to rock, to metal. 

100 watts, selectable between 3 and 4 gain stages. 

Marshall mods

The original Ground Zero high gain Jose-style M.O.A.B. (Mother of All Bombs) mod. Used on stage, in studios and at home for the ultimate modded Marshall experience with unparalleled versatility. 

Serious hot-rodded Marshall DNA. 

Mesa Recto mods

We take the 2-channel rectifier series to the next level and beyond. Tight, aggressive, high gain tones that still retain the signature recto DNA. 

Throw your boost pedal away and shake walls with it's massive low end punch. 

The newest Ground Zero mod for your 50 or 100watt Marshall. The Sniper mod is a plate driven, 4 gain stage design, with the option for 5 gain stages. The ultimate in brutality and aggression. 

Sniper is more modern than M.O.A.B, with a bigger low end and a lot of rich harmonic content. 

The best, easiest, cleanest and quietest way to add an extra tube gain stage to your amp! Containing a full extra tube circuit, filtering node AND a switching relay to add or remove the stage on demand. 

Unlike other added gain stage devices, Add-a-stage can be fully customized and tuned for your amp. A DIY dream come true!