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#366554 - 02/14/12 04:28 AM Does all power amp sounded the same?
mpyw Offline
local

Registered: 07/24/09
Posts: 280
Loc: Kuala Lumpur, Malaysia
Does all power amp sounded the same?
DO we need more power to drive our belove Axiom?

I think many of us asked these question before and some might agreed and some don't.

Me and a few audio fanatic (and bass nuts) did a power amp test at my place, comparing 3 different amp for the front 3 channel of M60v2 and VP150v2

The amp are:-
1. Emotiva XPA-3 (200W/ch)
2. Odessey HT-3 SE (150W/ch)
3. Anthem PVA5 (125W/ch)



All of us (6 of us) agreed that the Odessey sound best with great dynamic and much more refine sound and detail.

The anthem have a better detail than XPA3 but due to it lesser power, the dynamic of the sound somehow are a lot flatter than the other two. And thus not good for movies.

The XPA 3 have the same dynamic (with lots of headroom) as compared with the HT3, but the sound is more metalic and edgy and also lose out the detial to the Anthem and HT3.

And yes, we agreed that amp do sound differently and we need as much power as possible to get most out of the speakers.

We tested scene from Star Wars' "Pod Race" and many concert songs.

Now, please don't fight :p

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#366556 - 02/14/12 05:53 AM Re: Does all power amp sounded the same? [Re: mpyw]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10412
Michael, the facts of audio technology, which would be confirmed in a properly controlled blind listening test, are that there's no audible difference in either the quality or quantity of power available from those three amplifiers.
_________________________
-----------------------------------

Enjoy the music, not the equipment.



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#366565 - 02/14/12 08:46 AM Re: Does all power amp sounded the same? [Re: mpyw]
Ken.C Online   content
shareholder in the making

Registered: 05/03/03
Posts: 17809
Loc: NoVA
Oh, there's going to be a fight.
_________________________
I am the Doctor, and THIS... is my SPOON!

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#366566 - 02/14/12 08:47 AM Re: Does all power amp sounded the same? [Re: mpyw]
MarkSJohnson Offline
shareholder in the making

Registered: 09/27/04
Posts: 10965
Loc: Central NH
Get out the canned deer and popcorn!
_________________________
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::

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#366569 - 02/14/12 09:11 AM Re: Does all power amp sounded the same? [Re: mpyw]
Tariq Offline
frequent flier

Registered: 01/17/11
Posts: 16
Loc: Muscat, Oman
I thought I heard some metallic sound during the iron giant. Must be the XPA-3. It did feel 'edgy'.
_________________________
Tariq

M80v2 - VP180 - S:QS8 - SB:QS8 - SWide:QS8
Denon 4311 + XPA-3
Sub: Dual SVS Ultra-13

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#366571 - 02/14/12 09:27 AM Re: Does all power amp sounded the same? [Re: Tariq]
medic8r Offline
axiomite

Registered: 02/05/06
Posts: 6404
Loc: Fredericksburg, Virginia
Originally Posted By: Tariq
I thought I heard some metallic sound during the iron giant.

Makes sense, no? smile
_________________________
"The Universe is the game of the self, which plays hide and seek forever and ever" - Alan Watts

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#366572 - 02/14/12 09:30 AM Re: Does all power amp sounded the same? [Re: mpyw]
CatBrat Offline
axiomite

Registered: 08/05/09
Posts: 5932
Loc: Milky Way Galaxy
I love the new avatar. Got a laugh out of that one.

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#366575 - 02/14/12 09:42 AM Re: Does all power amp sounded the same? [Re: mpyw]
dakkon Offline
connoisseur

Registered: 02/08/04
Posts: 1846
Originally Posted By: mpyw


And yes, we agreed that amp do sound differently and we need as much power as possible to get most out of the speakers.




See, John, I've been right all along!..... :~)


It says so right here on the interweb...

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#366588 - 02/14/12 10:51 AM Re: Does all power amp sounded the same? [Re: mpyw]
BlueJays1 Offline
connoisseur

Registered: 09/19/08
Posts: 4082
Loc: Porch,enjoying Bombay Sapphire
Originally Posted By: mpyw
Does all power amp sounded the same?
DO we need more power to drive our belove Axiom?

I think many of us asked these question before and some might agreed and some don't.

Me and a few audio fanatic (and bass nuts) did a power amp test at my place, comparing 3 different amp for the front 3 channel of M60v2 and VP150v2

The amp are:-
1. Emotiva XPA-3 (200W/ch)
2. Odessey HT-3 SE (150W/ch)
3. Anthem PVA5 (125W/ch)



All of us (6 of us) agreed that the Odessey sound best with great dynamic and much more refine sound and detail.

The anthem have a better detail than XPA3 but due to it lesser power, the dynamic of the sound somehow are a lot flatter than the other two. And thus not good for movies.

The XPA 3 have the same dynamic (with lots of headroom) as compared with the HT3, but the sound is more metalic and edgy and also lose out the detial to the Anthem and HT3.

And yes, we agreed that amp do sound differently and we need as much power as possible to get most out of the speakers.

We tested scene from Star Wars' "Pod Race" and many concert songs.

Now, please don't fight :p


Good stuff. For another get together, test out some different brands of AVR's with different speaker/room correction programs. Use them as pre-amps if possible with external amplification with the auto calibration and equalization engaged on the AVR. It would be interesting to see which one would come out on top in your test.
_________________________
I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne

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#366589 - 02/14/12 10:56 AM Re: Does all power amp sounded the same? [Re: mpyw]
casey01 Offline
aficionado

Registered: 07/03/08
Posts: 769
Loc: Toronto
Considering the fact that all three of these amps have a different power output, until you somehow, can get them to output at "exactly" equal moderate volume for your source material and can instantaneously switch between them, any realistic comparison is going to be difficult. I dunno, but, it always comes back to the same old story in these comparisons that if one of them is even slightly louder than the other, to the human ear it is going to be perceived as sounding "better" or at minimum, "different". For that reason alone and considering that this is such mature technology, I, personally, have never bought the idea that there is a "real" audible difference between various brands.


Edited by casey01 (02/14/12 11:04 AM)

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