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Ilianh 22nd July 2003 08:10 PM

nonsense
 
After making several experiments based on saving space on my equipment rack it turns out that my amplifier sound better in it's horizontal position. When I turn it vertically I just don't like the sound.

Wich is total nonsense, I didn't even bother to make a ABX test because I know I would not be able to find the difference.

But still I swear I don't like the sound when its positioned vertically.

So whats wrong? same stuff with that cables thing, caps and so on?

leadbelly 22nd July 2003 08:40 PM

Well, before the golden ear crowd jump on board, I would say that either heat transfer from the sinks or vibration damping would be very different between the 2 positions.

Peter Daniel 22nd July 2003 09:02 PM

I'd say it's different resonant behaviour.

Ilianh 22nd July 2003 09:17 PM

Thanks for the input.

I've always believed in "the better it looks, the better it sounds".

I'd think the same stuff applies here.

My first guess was that I feel a bit insecure when it's in a vertical position, as theres a greater posibility for it to fall on the floor. Therefore not enjoying music as much........:scratch:


I've never made experiments to damp vibrations on amplifiers (or know how vibrations affect different componements) so I can't tell, I think what Peter suggests can't be denied.


Leadbelly, your right about heat transfer, but I mostly use this amp for my headphones and/or mid/highs when biamping. Usualy it stays somehow preety cold.

And yes, vibration damping changes, in horizontal position it sits on 4 rubber feet.

I think Rod Elliot had a article on vibration and amplifiers. I'll check that.

millwood 22nd July 2003 09:38 PM

I vote for the gamma rays, :).

Quote:

I didn't even bother to make a ABX test because I know I would not be able to find the difference.
Quote:

But still I swear I don't like the sound when its positioned vertically.
if you don't know if i would be able to tell the difference, how are you then so sure that it sounded different?

Am I losing it?

analog_sa 22nd July 2003 09:57 PM

Quote:

I think Rod Elliot had a article on vibration and amplifiers. I'll check that.
I won't be holding my breath. Rod will tell you to see a shrink rather than admit such audible differences exist. The majority of amps have a horrible pressed steel base which is mostly to blame sonically. And the top cover of course. I am yet to hear an amp that doesn't sound better with the cover off. When the amp sits on the side the bottom cover is free to vibrate at will. When it's sitting in the normal way the bottom cover takes all the amp's weight.
In the 80s a friend with a NAD power amp hated the sound with the cover so much, he wouldn't consider listening without removing it. In a few months the amp got quite dirty inside and my friends girlfriend made him a nice fabric cover, black as the original. Happiness doesn't last long though :) Eventually he spilled a glass of wine on it.

cheers
peter

sam9 22nd July 2003 10:03 PM

Almost anything new or different sounds different to me. Sometimes better sometimes worse. It's just the novelty of change and an overdose of placebo pills.

millwood 22nd July 2003 10:17 PM

Quote:

Originally posted by sam9
an overdose of placebo pills.

hahahaha. I read an article not too long ago that said in experiments, patients reported the biggest improvement with placebo pills, :)

Humans are so complex.

fdegrove 22nd July 2003 10:57 PM

Hi,

Quote:

In the 80s a friend with a NAD power amp hated the sound with the cover so much, he wouldn't consider listening without removing it. In a few months the amp got quite dirty inside and my friends girlfriend made him a nice fabric cover, black as the original. Happiness doesn't last long though Eventually he spilled a glass of wine on it.
Great story, Peter...

But your friend's right those amps with flimsy topcovers resonate like yellowjackets in the wind.

In the heydays of the 3020 we did a lot of PSU tweaking on them, they had good potential but are long surpassed by similarly priced amps nowadays.

Heck, come to think of it...if the more affordable amps sound much better now it's mostly thanks to us guys pushing the envelope.

Even those motherboards sound a lot better lately....oops.:clown:

Cheers,;)

ThomasLMcLean 22nd July 2003 11:54 PM

I would check the cables and connectors for good physical connections and correct solder joints.

Also, the connections to any heavy components inside the Amp.

I hope you find it.


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