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#258207 - 04/25/09 02:37 PM Re: Added an Amp...WOW, kinda. [Re: MarkSJohnson]
PeterChenoweth Offline
connoisseur

Registered: 10/23/03
Posts: 1349
Loc: Jacksonville, IL
Cool Zimm. \:\)

Thanks for sharing.

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M80v2 | VP150v2 | QS8v2
SVS Pci+ 20-39
Emotiva UMC-1 & LPA-1
M22ti + T-Amp, in the Office

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#258208 - 04/25/09 02:41 PM Re: Added an Amp...WOW, kinda. [Re: MarkSJohnson]
mistico Offline
enthusiast

Registered: 02/25/09
Posts: 34
Loc: Bay Area, CA
Get a couple and see for yourself, if they have a 30 day trial that is. \:D Great price too.

I purchased the amp with the full intent of returning it if it did not make a difference. It stayed.


Edited by mistico (04/25/09 02:42 PM)

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#258215 - 04/25/09 03:50 PM Re: Added an Amp...WOW, kinda. [Re: mistico]
Ken.C Online   content
shareholder in the making

Registered: 05/03/03
Posts: 17768
Loc: NoVA
Anyone have those M2200s floating around? How hot do they get?

I've been scared off by the amp manuals suggesting you have a separate 15A circuit for them, yadda yadda, tons of clearance, yadda yadda, since I don't have much of either.
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I am the Doctor, and THIS... is my SPOON!

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#258216 - 04/25/09 03:55 PM Re: Added an Amp...WOW, kinda. [Re: bugbitten]
RickF Offline
axiomite

Registered: 02/26/05
Posts: 5210
Loc: Vero Beach, Florida
 Originally Posted By: bugbitten
 Originally Posted By: Zimm
 Originally Posted By: JohnK
Misti, amplifiers simply don't work that way; they have no capability of performing a miracle by making speakers "come alive sooner" at lower volume level. Volume is volume.


I accept that the impact is driven by a placebo effect, but I do "find" more bass even at low levels (this time about 70db). They call it weight I think. The only non-placebo explanation I can offer is possibly power reserves allowing bass (without a sub) that a smaller power supply can't reach. Sames as the greater dynamic range I explained above. But that is far from scientific, and I'm too lazy to do true A/B testing for the group.

That is the most surprising aspect of the external amp issue for me. There literally was more music than I was getting - 2 to 3 db of sound peaks. I didn't expect that and i think it adds something to the experience, when you exceed my old amps comfort zone of 80 to 100 watts.


I must be taking the same placebo.

I'm with Zimm on this one.


Me too.

I'm with Bug on this one. \:\)
_________________________
Rick
Our Room

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#258218 - 04/25/09 04:33 PM Re: Added an Amp...WOW, kinda. [Re: RickF]
Spoiler Offline
aficionado

Registered: 01/03/06
Posts: 680
Loc: South Florida
 Quote:
Anyone have those M2200s floating around? How hot do they get?

I've been scared off by the amp manuals suggesting you have a separate 15A circuit for them, yadda yadda, tons of clearance, yadda yadda, since I don't have much of either.


If you crank them with music at 90-100 db average, yep, they'll get hot after about 20 min. I've kept them going alot longer than that (when 1st testing them) without shutdown. Of course, if you can stand music for that long at those levels, you're a better man than I. \:\)
Mine are stacked on top of each other with about 3" clearance above. No need for separate circuits.
_________________________
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#258310 - 04/26/09 12:55 PM Re: Added an Amp...WOW, kinda. [Re: Spoiler]
Zimm Offline
connoisseur

Registered: 12/08/08
Posts: 1361
Loc: New Orleans
Well, the Crown amp experience was helpful. I know I want an amp, but the Crown's noise floor is too high (S/N is about 90, and THD is around .5%). Researching a bit, it looks like the QSC is a better option for my uses. QSC actually has several THX certified amps using their H-class amps. THX Cert Their noise levels are much lower (S/N >100 and THD is <.05). I can't find the THX amps locally, but the GX line uses the same H-class amp design and looks similar so I'm going for it today. I'll let you know.

But I have to give the Crown two thumbs up, other than a bit of noise during dead quiet sences, it is great. Hopefully the QSC will do the same without the noise.
_________________________
Panny 3000 PJ, 118" Carada, Denon 3300, PS3, Axiom QS8, PSB 5T, B&W sub, levitating speaker wire

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#258339 - 04/26/09 04:49 PM Re: Added an Amp...WOW, kinda. [Re: JohnK]
chesseroo Offline
connoisseur

Registered: 05/13/02
Posts: 4827
Loc: western canada
 Originally Posted By: JohnK
Misti, amplifiers simply don't work that way; they have no capability of performing a miracle by making speakers "come alive sooner" at lower volume level. Volume is volume.

Actually John, such an observation could be perceived if the amp has a higher gain to signal ratio than another although that is an observation of SPL and not sound quality per se.
_________________________
"Those who preach the myths of audio are ignorant of truth."

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#258340 - 04/26/09 04:51 PM Re: Added an Amp...WOW, kinda. [Re: pmbuko]
chesseroo Offline
connoisseur

Registered: 05/13/02
Posts: 4827
Loc: western canada
 Originally Posted By: pmbuko
LT61, even inexpensive amps have low (< 0.1%) THD now.

Didn't BrenR put up an mp3 demo of distortion awhile back that was rather enlightening?
Thinking a person can hear <1% THD is like thinking you can hear a mosquito fart at 100 metres.
\:\/


Edited by chesseroo (04/26/09 04:52 PM)
_________________________
"Those who preach the myths of audio are ignorant of truth."

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#258342 - 04/26/09 04:56 PM Re: Added an Amp...WOW, kinda. [Re: chesseroo]
Wid Offline
axiomite

Registered: 06/22/03
Posts: 6720
Loc: The Peoples Republic of Il.
Yes he did, here it is.
_________________________
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"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud


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#258343 - 04/26/09 04:58 PM Re: Added an Amp...WOW, kinda. [Re: chesseroo]
PeterChenoweth Offline
connoisseur

Registered: 10/23/03
Posts: 1349
Loc: Jacksonville, IL
 Originally Posted By: chesseroo
 Originally Posted By: pmbuko
LT61, even inexpensive amps have low (< 0.1%) THD now.

Didn't BrenR put up an mp3 demo of distortion awhile back that was rather enlightening?
Thinking a person can hear <1% THD is like thinking you can hear a mosquito fart at 100 metres.
\:\/


You live in Canada. If a mosquito could fart, those B-52 sized mosquitoes you've got up there would present the best chance to actually hear one from 100 meters away. ;\)
_________________________
M80v2 | VP150v2 | QS8v2
SVS Pci+ 20-39
Emotiva UMC-1 & LPA-1
M22ti + T-Amp, in the Office

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