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Aha! The 12AT7 eh? Well I haven't tested that one. I'll admit that I am very
sceptical that electron flow through a different 12AT7 will have any effect on
the sound of the RI tank but that's what makes this fun. I get to do another
scientific test. Similarly I would hope that nobody would take my word on these
sound issues and would engage in their own blindfold testing.
Ran, yours was the second poke at formulas that I had read so I was indeed
beginning to think I had given people the wrong idea, that I wanted to engage
this list in lottsa math-talk. A little math-talk once in a great while where
appropriate, yes. Lottsa math-talk, no. I had a good laugh when I got to your
part about the smoking jackets and accents.
-Marty
----- Original Message -----
From: Ran Mosessco
To:
Sent: Thursday, December 02, 2004 11:04 AM
Subject: Re: [SurfGuitar101] Point to Point?
Rob and Gavin really did explain the reliability very well.
About the sound:
I agree with the blind test method, it's probably the best indicator. I
wonder what will happen if you try your reissue TR against a good sounding
old one. I admit that my tests were not blind, but in one of the few
incidents that I made them, it involved recording the results and comparing.
We were amidst recording when my amp blew a fuse, and for some reason I did
not have a replacement one, and because of studio/label "politics" (don't
ask) I did not want to open someone else's amp and take a fuse. So I just
used the entire reissue amp (with my cabinet). It sounded different, but I
went on to try to record anyway. I wasn't the only one who noticed the
difference. The reissue had a fuzziness to it's sound, much less defined,
especially when the track was played with the rest of the instruments. So,
out went its fuse and we used my amp.
Regarding the mods to the reissue unit - I actually thought the tone cap mod
wasn't that dramatic. Also, the 6K6 GT made a difference, but not as much as
when I replaced the 12AT7 tube. That was a very dramatic difference. I
plugged the Chinese 12AT7 that came with the unit back in, and noticed the
difference again. Switched back and forth several times, just to make sure.
BTW - it was tested with a radio broadcast, not with a guitar signal. The
good sounding 12AT7 was an NOS GE unit, which I later replaced to an NOS
RCA. It really surprised me as most people said the most important thing to
do was to change the tone cap and the power tube.
BTW - Marty, I hope you didn't take my theoretical discussion joke
personally.
Ran
----- Original Message -----
From: "Marty Tippens" <>
To: <>
Sent: Wednesday, December 01, 2004 10:56 AM
Subject: Re: [SurfGuitar101] Point to Point?
>
> While I have attempted some mathematics on this list in the past, when it
comes to what sounds better, I rely only on the acid test of blindfold A/B
comparison. Comparing equipment side by side is not a reliable indicator of
which unit sounds best IF one is aware of the particular unit that is
producing the sound. If one truely wants to know which unit has the prefered
sound, the emotions of what we expect or want to have better sound has to be
taken out of the equation.
>
> I haven't done the comparison that Ran has done with new and old Twin
Reverbs. I do have one of the new '65 reissues and haven't had reliability
problems BUT I have to admit, I haven't played it out but a handful of
times. I do like the sound.
>
.
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