modification

Dumble ODS: 100W HRM

29 May 2010

After building a 50W Dumble Overdrive Special (ODS) the next logically thing was to build a louder, fancier Dumble amp. Dumble Overdrive Special’s come in two flavors, HRM and non-HRM. HRM stands for Hot Rubber Monkey (though often called Hot Rodded Marshall) and refers to a Marshall tonestack placed at the end of the Overdrive channel. This added internal trim pot based tonstack allows the player to have better control over the Overdrive channel tone.

Since the PAB disables the tonestack in the Clean channel you can see how using the PAB and the Overdrive channel simultaneously allows you to have a dedicated clean tone and rely less on the Clean channel tone. In other words you don’t have to compromise your Clean channel tone in order to get a good Overdrive channel tone and vice versa with HRM ODS’.

Though there are many similarities between the HRM ODS and the non-HRM ODS this 100W HRM build and my 50W non-HRM ODS build are quite different sounding. I enjoy the complexity, tweaking and sound of Dumble amplifiers so I decided to take on this build for these reasons. [you know you want to read more…]

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Ideology Behind the Mod:

After playing with Boss BD-2 for a while I was not impressed. No blues player would ever need the gain this unit puts out. Even the minimum gain was blowing my head off. This pedal was very shrill sounding, I couldn’t use the tone control at all, way too piercing. There was also fuzziness and buzz when the gain control went past noon.

Anyways I like bright clear tones and fat tones and I am not a huge fan of over the top gain. With this is mind I started moddifying the pedal’s circuit.

[you know you want to read more…]

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The Ultimate Boss DS-1 Mod

December 28, 2007

Ideology Behind the Mod: I bought a DS-1 with the notion to mod it. I knew what it was like stock so I wanted to see what I could do with it to try and improve the sound. I figured I would perform the well known Robert Keeley’s mod and it would be great. Well […]

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