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Peter · 03-13-2008, 10:35 PM

I came up with some great modifications for my AVT50 amp:
1. The obvious mod: add a second speaker jack.
2. Installed a clean channel midrange control.
3. Increased preamp tube gain by around 25% (switched).
4. Installed a 6 position mid shift switch on the Overdrive channel with the stock midrange frequency, and 5 others [a great mod in any amp].
5. I reinforced some key components in the amp with higher wattage and voltage components (cheap insurance).

The fatter tones from the mid shift switch along with the extra tube drive really really brought the amp to life. The amp sounds 100% way better, and I didn't even drive the tube nearly as hot as in other tube amps. The clean channel tube sound really rocks on full gain, and rolls off at lower gains. Very impressive improvements. I am also working on an optoelectronically controlled footswitch for Lead Boost and Scoop. Anybody out there interested in Kits? I am interested in producing them.

PETER THE TONE DOCTOR

03-13-2008, 10:35 PM	#1 (permalink)
Peter Member Join Date: Mar 2008 Location: Toronto, ON, Canada Posts: 59	Marshall AVT50 Mods I came up with some great modifications for my AVT50 amp: 1. The obvious mod: add a second speaker jack. 2. Installed a clean channel midrange control. 3. Increased preamp tube gain by around 25% (switched). 4. Installed a 6 position mid shift switch on the Overdrive channel with the stock midrange frequency, and 5 others [a great mod in any amp]. 5. I reinforced some key components in the amp with higher wattage and voltage components (cheap insurance). The fatter tones from the mid shift switch along with the extra tube drive really really brought the amp to life. The amp sounds 100% way better, and I didn't even drive the tube nearly as hot as in other tube amps. The clean channel tube sound really rocks on full gain, and rolls off at lower gains. Very impressive improvements. I am also working on an optoelectronically controlled footswitch for Lead Boost and Scoop. Anybody out there interested in Kits? I am interested in producing them. PETER THE TONE DOCTOR Last edited by Peter; 03-16-2008 at 11:49 AM.