Here you go, from Peter S, who was very prompt & kind in responding. The Diezel family kicks ass!
"I was working on Adam´s Rig about two years ago.
Adam has a very special amp configuration and I did not have enough time to sort all details.
But I could play his guitar through his rig and I tried to disconnect everything just to hear the diezels only.
I later on tried to replicate his "tone" in the factory. It is not all about the amps and stomp boxes.
I noticed 3 Neumann microphones in front of the cabinets......( to be mentioned )
The bottom end comes from the blue faced VH4. Adam was my very very first customer in the USA!!! His amp is one of the very
first VH4´s we ever made. The difference to any later versions is mainly that we have used some ceramic capacitors that Peter replaced
against WIMA type capacitors later on ( which are apparently better and deliver less tolerances )
So this blue amp is constantly on the road for 20 years now and never failed!!!!
The power tubes are Chinese 6L6GCMSTR (Ruby) with more bottom end compared to the standart 6L6GC-BSTR.
The blue face sounds way too dark but Adam loves it.
The highs are more or less "Marshallish" Nobody could answer me the question who modified this amp and what´s in there.
So this is the part of the secret that nobody either knows or was willing to tell me
I could not even see the tubes inside
The VH4´s are connected to the Mesa cabinet. One of those is a bass cabinet.
All three cabinets at a time generate
a massiv phase shift and if you play all together while standing in front
of that wall, you´re getting dizzy imediately.
I was trying to replicate this by using one amp and 2 different cabinet constructions ( 1 4X12rear V30 and 1 4X12" front with G12K )
The phase shift is somehow compressing the palm mutes in a natural way. And the result is pretty close to what I´ve heard on stage.
Of course, the high´s from the Marshall half stack are much more harsh compared to the G12K100.
I had no chance to try the Marshall all alone because the time between repair and sound check was very tight.
I can not tell you what the Marshall exactly does.
The pickups are not at all high output pickups. Also his gain settings are moderate too.
I think Adam also wants the speakers to move, I want say he is insainly loud!!!
Back to the Neumann Mics. The sound on stage is slightly different to what I could hear FOH.
I had no chance to look at the channel strips at the FOH console. I think all mikes have extreme stereo panning
which really spreads the sound.
One thing is for sure, we have sold a lot of VH4´s because of honorable Mr. Jones!!!!
I context with the "tool" project and his input, he´s a master mind!
That´s all I can tell about it."
