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CapnCrunch · 07-16-2008, 02:03 PM

Peter,
I have 3 AVT50H heads (VS2000). I love em! I was thinking about replacing the pre-amp tube with a Groove Tube (GT has a nice Mullard 12ax7 re-issue - or else I may go wth their GT-ECC83) - There is quite a waiting list for the Mullard re-issues!

Do you think I'll notice a difference in performance if I do this? Or should I hang on to my cash?

I love the fact that YOU have taken an interest in this model. My third head is "blown". (I run 2 half-stacks in stereo - the third is a backup head). I turned it on with the volume way up.........now..it turns on, but I get a faint, fuzzy output signal through my cabinet (I tested with another cab to make sure it wasn't the speakers).

I'd like to play Frankenstein with it now that there are mods (thanks to you!) but I'm like most folks and can just swap pre-amp tubes at best.

Thanks for your time,
CapnCrunch

07-16-2008, 02:03 PM	#19 (permalink)
CapnCrunch Junior Member Join Date: Jul 2008 Location: Cincinnati, OH Posts: 1	Re: Marshall AVT50 Mods Peter, I have 3 AVT50H heads (VS2000). I love em! I was thinking about replacing the pre-amp tube with a Groove Tube (GT has a nice Mullard 12ax7 re-issue - or else I may go wth their GT-ECC83) - There is quite a waiting list for the Mullard re-issues! Do you think I'll notice a difference in performance if I do this? Or should I hang on to my cash? I love the fact that YOU have taken an interest in this model. My third head is "blown". (I run 2 half-stacks in stereo - the third is a backup head). I turned it on with the volume way up.........now..it turns on, but I get a faint, fuzzy output signal through my cabinet (I tested with another cab to make sure it wasn't the speakers). I'd like to play Frankenstein with it now that there are mods (thanks to you!) but I'm like most folks and can just swap pre-amp tubes at best. Thanks for your time, CapnCrunch Last edited by CapnCrunch; 07-16-2008 at 07:26 PM.