JCM 800 2203 mods

PaoloJM · 08-04-2008, 04:35 AM

The purpose was for warmer, thicker, meatier sounds with more gain at bedroom volumes. In this vid the MV is set to 4 with the Hot Plate @ -16dB and dialed down to half way.
The vid description gives details of work so far.
Any idea's on use for the third input hole drilled by the previous owner? He had fitted an additional input but had wired it for a fixed low volume and all the dials were by-passed which I felt was utterly useless to me so I removed all of his circuitry. I got this otherwise all stock ('81) amp cheap because of this.
Anyway is was thinking of a resonance control or maybe a PPIMV so I can hit the PI harder at lower volume settings, any thoughts/suggestions?

YouTube - Paolo Marshall JCM 800 2203 mods

08-04-2008, 04:35 AM	#1 (permalink)
PaoloJM Senior Member Join Date: Jun 2008 Location: Cork, Ireland Posts: 154	JCM 800 2203 mods The purpose was for warmer, thicker, meatier sounds with more gain at bedroom volumes. In this vid the MV is set to 4 with the Hot Plate @ -16dB and dialed down to half way. The vid description gives details of work so far. Any idea's on use for the third input hole drilled by the previous owner? He had fitted an additional input but had wired it for a fixed low volume and all the dials were by-passed which I felt was utterly useless to me so I removed all of his circuitry. I got this otherwise all stock ('81) amp cheap because of this. Anyway is was thinking of a resonance control or maybe a PPIMV so I can hit the PI harder at lower volume settings, any thoughts/suggestions? YouTube - Paolo Marshall JCM 800 2203 mods __________________ www.youtube.com/paolojm

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