Ground Zero Ampworks

Ground Zero Ampworks Custom modified guitar amps

Here’s what’s on the bench today. A JMP 2203 5GS Sniper+ with clean channel. 5th stage and clean are both foot switchabl...
01/14/2026

Here’s what’s on the bench today. A JMP 2203 5GS Sniper+ with clean channel. 5th stage and clean are both foot switchable. Still in process, but turning out nice and tidy.

This customer wanted additional gain cut options made foot switchable, so a second jack and a couple more relays were added.

Needless to say, this one is a lot of work, but it’ll be a killer piece when it’s ready to go. I made judicious use of the Gound Zero PCB boards to make it all happen. Takes quite a bit of pre-planning to make sure things go smoothly.

Up to about 45 holes drilled so far. For the inevitable Marshall guy that will be offended by this…

GZ SLO100 mod in purple. Grimace would be proud….
01/12/2026

GZ SLO100 mod in purple. Grimace would be proud….

Really good demo of the MOAB+ 80’s type tones by Neddi Stanz
12/09/2025

Really good demo of the MOAB+ 80’s type tones by Neddi Stanz

everything is in the video

It’s Sniper season… This pair of Snipers are ready to go. Two more in the queue. 5GS Sniper+ in white and standard 4GS S...
11/26/2025

It’s Sniper season…

This pair of Snipers are ready to go. Two more in the queue.

5GS Sniper+ in white and standard 4GS Sniper in black.

This little fire breather is a full-featured MOAB+ in a Marshall SV20 donor. A full range of controls, switches, NFB/ de...
11/13/2025

This little fire breather is a full-featured MOAB+ in a Marshall SV20 donor.

A full range of controls, switches, NFB/ depth, Ground Zero fx loop, and….a foot-switchable 4th gain stage. Loaded is an understatement.

Won’t be doing any more of these for a while. But this one is off to its new home where it’ll sub in for a 100w MOAB in smaller venues.

Behold the very first Ground Zero modded SLO30. All the same features as the SLO100 mod  This little amp is incredible a...
11/02/2025

Behold the very first Ground Zero modded SLO30. All the same features as the SLO100 mod

This little amp is incredible after the mod! So much harmonic goodness, tighter response and clarity for days.

Another loaded MOAB+ with clean channel. This one is built on a brand new 2025 Super Lead hand wired re-issue. The custo...
10/21/2025

Another loaded MOAB+ with clean channel.

This one is built on a brand new 2025 Super Lead hand wired re-issue.

The customer and I decided to swap the stock Made in Vietnam OT for a Heyboer unit while it was apart. You just can’t beat a Heyboer for these amps.

The stock PT’s are beasts and I have no issues with them whatsoever. 480vdc B+ and they sound fantastic.

The stock voltage selector was removed to make room for the foot switch jack. Space is at a premium when you’re running as many features as these loaded versions have.

The good people over at Luxxtone are raising funds for cancer charity. Please share and spread the word! https://m.faceb...
10/21/2025

The good people over at Luxxtone are raising funds for cancer charity.

Please share and spread the word!

https://m.facebook.com/story.php?story_fbid=1726782764909449&id=100027332270326&mibextid=wwXIfri

🔥 Stand up and shout for a good cause!

Luxxtone Guitar benefiting cancer charity goes on sale tomorrow at noon (PST).⚡

Blacked Out Luxxtone T-Rexx— textured black body, black aluminum pickguard, and pure attitude.

The winner also gets:
🎳 A spot to bowl with Team Luxxtone at a celebrity bowling event on 11/13
🤘A bunch of Luxxtone swag

Watch this space tomorrow!

Another JMP 2203 MOAB+ fully loaded with clean channel, all option switches and foot switching 🔥
10/06/2025

Another JMP 2203 MOAB+ fully loaded with clean channel, all option switches and foot switching 🔥

MOAB+ with full clean and all options. Built with GZ Add-a-Stage and Add-a-Clean. A great sounding amp that will see liv...
09/21/2025

MOAB+ with full clean and all options. Built with GZ Add-a-Stage and Add-a-Clean.

A great sounding amp that will see live use soon!

Here’s the first 5GS Sniper+ with a full clean channel. Using the GZ Add-a-Clean and Add-a-Stage PCB’s. Five 12ax7’s of ...
09/15/2025

Here’s the first 5GS Sniper+ with a full clean channel. Using the GZ Add-a-Clean and Add-a-Stage PCB’s.

Five 12ax7’s of versatility and tone.

GZ Add-a-clean overview and demo video
09/03/2025

GZ Add-a-clean overview and demo video

All new Ground Zero Add-a-Clean PCB. Designed to cleanly and quietly add a clean channel to your single channel amp.** This product should only be installed ...

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Los Angeles, CA

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