Ground Zero Amplification modded JCM 800 "MOAB"

[FondledDuck]

This is one of Jeremy's latest mods. Donor is a 1983 JCM 800 2203. Jose style, negative feedback, depth, hi/lo gain modes, fx loop added, diode clipping in/out controlled via potentiometer. This is more "modern" sounding vs the Hellion, not as versatile but gets down to business. Huge sounding, full frequency responsiveness, tight, fast attack, punchy, and aggressive. Les Paul straight into the amp, sm57 on V30, no post processing.

 

[thegame]

Woah….that smokes!

 

[Racerxrated]

Nice! ??

 

[JackBootedThug]

badass.

 

[Mikeyboyeee]

Sounds great!!
How invasive to chassis?

 

[SQUAREHEAD]

… a beast?

 

[headlessdeadguy]

Love it!!

 

[Techdeth]

Awesome af

 

[FondledDuck]

Sounds great!!
How invasive to chassis?

Holes drilled for NFB, and fx loop. Used existing speaker out for Depth

 

[FondledDuck]

 

[RedPlated]

Here’s some pics of another one I just got done with today. It’s really simple. Yet really covers a wide range of tones.

Both amps in this thread are 2203’s. I’ll be doing a 2204 with this mod soon.

 

[RaceU4her]

sounds badass!!

 

[thenine]

Damn man! Rockin, grindin, smashin, chunkin!

 

[thenine]

Atten u hater!

Haha! Just saw that.

 

[RedPlated]

Atten u hater!

Haha! Just saw that.

I’m glad you caught that. I was hoping someone would ha. I had thought of this a long time ago and totally forgot about it.

The control really does work like the best attenuator ever. Put it at 9 o clock and you’ll get great tones at serious whisper volumes.

 

[inyarak74]

Badass!

 

[thenine]

My 4 holer is still minty fresh like your favorite toothpaste!

 

[LPMojoGL]

sounds badass!!

+1
Mean, aggressive, razor sharp with grind.
Love it!

 

[Kidkramer71]

That amp slays !
Sounds killer.
Nice riff too.

 

[Exo-metal]

That sounds fantastic man. Love the main riff, that minor chord you drop down to for one lower note and the open chords shine so good on this mod. Great job bro?