"Stimpy" wrote in message
...
Keith G wrote:

I suspect not as good as you would hope, guitar valve amps are
designed to be intentionally poor in HiFi terms. OPTX's that
saturate, power supplies that sag etc.

But there's no feeling in the world that comes close to standing 5
feet from an 8 x 12 Marshall stack with a low slung '59 Les Paul,
playing BIG power chords and riding the sustain...

There is, as it happens, but you would need an 80's 1,000cc Jap
Sports bike to experience it.......

Ah, but to stay on topic, are 80's 1,000cc Jap Sports bikes designed to be
intentionally poor in HiFi terms?


Yes, most definitely!

:-)

"Ian Molton" wrote in message
...
On Tue, 6 Jan 2004 23:50:03 -0000
"Keith G" wrote:

I'd be willing to bet there are detectable differences in the output
of
those amps.



So would I, even at "*exact same* voltages"......

Can you explain how this is possible?


I wish I could.



if you drive the same voltages (and assuming your PSU is up to the job)
you will cause the same current to flow, the speaker will move the same way,
and its impedance will vary in the same way also.

correct me if Im wrong, do...


No, I'm sure you're right - *all* amps producing the same voltage to the
same pair of speakers in exactly the same way will produce exactly the same
sound....... :-)

"Ian Molton" wrote in message
...
On Tue, 6 Jan 2004 23:50:03 -0000
"Keith G" wrote:

I'd be willing to bet there are detectable differences in the output
of
those amps.



So would I, even at "*exact same* voltages"......

Can you explain how this is possible?


I wish I could.



if you drive the same voltages (and assuming your PSU is up to the job)
you will cause the same current to flow, the speaker will move the same way,
and its impedance will vary in the same way also.

correct me if Im wrong, do...


No, I'm sure you're right - *all* amps producing the same voltage to the
same pair of speakers in exactly the same way will produce exactly the same
sound....... :-)

"Ian Molton" wrote in message
...
On Wed, 7 Jan 2004 00:09:08 -0000
"Keith G" wrote:

For myself, I would use a stopwatch to time a CD/SS sesh playing 90's
Bimbo Pop and probably a calender to time a decent stint of
40s/50s/60/s (even 70s) Jazz, Latin, selected Classical and selected
Easy Listening (with a sprinkling of Laurie Anderson, Joan Baez and
Joni Mitchell) played only on vinyl with valve amplification.....

Soooo.... you're saying the qality of the amp varies depending on what
you play on it?



Oh no I'm not.......

"Ian Molton" wrote in message
...
On Wed, 7 Jan 2004 00:09:08 -0000
"Keith G" wrote:

For myself, I would use a stopwatch to time a CD/SS sesh playing 90's
Bimbo Pop and probably a calender to time a decent stint of
40s/50s/60/s (even 70s) Jazz, Latin, selected Classical and selected
Easy Listening (with a sprinkling of Laurie Anderson, Joan Baez and
Joni Mitchell) played only on vinyl with valve amplification.....

Soooo.... you're saying the qality of the amp varies depending on what
you play on it?



Oh no I'm not.......

On Wed, 7 Jan 2004 01:29:52 -0000, "Keith G"
wrote:

No, I'm sure you're right - *all* amps producing the same voltage to the
same pair of speakers in exactly the same way will produce exactly the same
sound....... :-)

Yeah, but 'exactly the same way' means that they have to have the same
distortion characteristics. This isn't going to happen in this case.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Wed, 7 Jan 2004 01:29:52 -0000, "Keith G"
wrote:

No, I'm sure you're right - *all* amps producing the same voltage to the
same pair of speakers in exactly the same way will produce exactly the same
sound....... :-)

Yeah, but 'exactly the same way' means that they have to have the same
distortion characteristics. This isn't going to happen in this case.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Tue, 6 Jan 2004 23:58:05 -0000, "Keith G"
wrote:

"Ian Molton" wrote in message
...
On Tue, 6 Jan 2004 18:11:35 -0000
"Wally" wrote:

So is there something that makes the sound quality better, but isn't
measurable?

No.

A linear class A valve and SS amp will sound absolutely, 100% totally,
utterly, and completely the same.

Oh no they won't.....

Of course they will - why wouldn't they?

now find me a totally linear valve or SS amp ;-)


OK, ya got me there!

Even a reasonably linear valve amp is hard to find........

--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Tue, 6 Jan 2004 23:58:05 -0000, "Keith G"
wrote:

"Ian Molton" wrote in message
...
On Tue, 6 Jan 2004 18:11:35 -0000
"Wally" wrote:

So is there something that makes the sound quality better, but isn't
measurable?

No.

A linear class A valve and SS amp will sound absolutely, 100% totally,
utterly, and completely the same.

Oh no they won't.....

Of course they will - why wouldn't they?

now find me a totally linear valve or SS amp ;-)


OK, ya got me there!

Even a reasonably linear valve amp is hard to find........

--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Wed, 7 Jan 2004 00:32:06 -0000
"Wally" wrote:

quite possibly, but thats not the issue here.

If neither type has linear examples, then, unless both types are non-linear
in the same way, might they have different characteristic sounds?

Yes.

Nah, my Celestions have had far worse kickings than a 20W amp can
ever hope to dish out.

I fear for your tweeters... maybe thats why you like vinyl so?

I have nil vinyl.

Oops - thought I was replying to Keith ;-)

As for tweeters, I'm not talking about Celestion hi-fi
speakers, but the 12" guitar drivers.

ahhh, all is forgiven ;-)

--
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Do not meddle in the affairs of Dragons, for you are tasty and good with ketchup.