Marshall Dumble? Mod..

Billion81 · Post by **Billion81** » Tue May 22, 2012 10:36 pm

Anyone have any detail on the Marshall Mod- I know Rob (Voodoosound) has spoken of it and i think had/has one. Not much detail if any on what it's all about..Anyone?

dcribbs1412 · Post by **dcribbs1412** » Wed May 23, 2012 3:34 pm

Billion81 wrote:Anyone have any detail on the Marshall Mod- I know Rob (Voodoosound) has spoken of it and i think had/has one. Not much detail if any on what it's all about..Anyone?

Wondering if he was referring to a HRM build?...

SoundPerf · Post by **SoundPerf** » Wed May 23, 2012 7:02 pm

dcribbs1412 wrote:
Billion81 wrote:Anyone have any detail on the Marshall Mod- I know Rob (Voodoosound) has spoken of it and i think had/has one. Not much detail if any on what it's all about..Anyone?
Wondering if he was referring to a HRM build?...

I would have to think so. I can't think of much more of a mod to get a Marshall sound and still keep it a D-style circuit.

FuzzFaceBuilder · Post by **FuzzFaceBuilder** » Wed May 23, 2012 8:23 pm

The ultra-phonix mods are applicable to certain Marshall circuits. There are also two other Marshall related mods, IIRC, the "Mega Plex" and the "Purple Haze".

M Fowler · Post by **M Fowler** » Wed May 23, 2012 9:33 pm

I've read reference to Dumble ultra-phonix modding Marshalls on other forums so I think that is what the OP was referring to.

ckpop · Post by **ckpop** » Thu May 24, 2012 8:19 am

Back in the 90's in dallas I knew a guy who had a dumble modified superlead amp. I'm am not sure what was done inside but he used a dumbleator. The guy was really into Eric Johnson and the amp and his setup nailed the tone.

Billion81 · Post by **Billion81** » Thu May 24, 2012 2:17 pm

Cool- Anyone around here ever tried to build one? Are there Schematics?

I have a Metro Superbass I would consider modding up.

FuzzFaceBuilder · Post by **FuzzFaceBuilder** » Thu May 24, 2012 7:54 pm

Here is part of a studio equipment list, listing an Ultra-phonix modded JMP and other assorted Dumble amps. Just a spot to get started (read: in contact with), Ted.

The Dumble section reads:
Dumble ODS100
Dumble ODR100
Dumble "Ultraphonix" Fender Bandmaster
Dumble "Ultraphonix" Fender Showman
Dumble "Ultraphonix" Ground up '75 Marshall JMP (one of two)
Dumble Ground up '73 Marshall Super Tremolo, Orig. tranny's (other One of Two)

M Fowler · Post by **M Fowler** » Thu May 24, 2012 9:28 pm

Wow, I would love to own either one of the Dumble "Ultraphonix" Fender Bandmaster or Dumble "Ultraphonix" Fender Showman.

They are such a great sounding amp.

Mark

Bombacaototal · Post by **Bombacaototal** » Mon May 17, 2021 1:19 pm

Reviving an old thread but curious if any new information has resurfaced about the Marshall ultraphonix mods

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