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#338778 - 02/16/11 07:41 PM Re: How much power is needed to play M80s at reference [Re: ClubNeon]
BlueJays1 Offline
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Registered: 09/19/08
Posts: 4116
Loc: Porch,enjoying Bombay Sapphire
The EP2500 is not one of their products that is known for a lot quality issues. Their product line is hit or miss, the EP2500 is more hit and its build quality and performance has been verified by third parties. It's just a general tidbit about Behringer that one should be aware about. Some of their products offer exceptional value, the EP2500 being one of them. Some products are complete junk. Behringer has a love/hate relationship with the professional crowd.
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#338788 - 02/16/11 08:11 PM Re: How much power is needed to play M80s at reference [Re: BlueJays1]
MarkSJohnson Offline
shareholder in the making

Registered: 09/27/04
Posts: 11437
Loc: Central NH
I really need to go crash, but I'll throw out there that many have pointed out that Crown Calculator to have errors as it pertains to HT. JohnK and Alan will likely be along with the answers....
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#338816 - 02/16/11 09:27 PM Re: How much power is needed to play M80s at reference [Re: MarkSJohnson]
BlueJays1 Offline
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Registered: 09/19/08
Posts: 4116
Loc: Porch,enjoying Bombay Sapphire
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I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

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#338817 - 02/16/11 09:31 PM Re: How much power is needed to play M80s at reference [Re: BlueJays1]
michael_d Offline
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Registered: 07/23/04
Posts: 4195
Loc: Up yonder
2000 cubic feet?? That's not that big. 16 X 16 X 8 is 2048. You can go deaf with a simple AVR pushing 100 WPC in that room.
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#338822 - 02/16/11 09:45 PM Re: How much power is needed to play M80s at reference [Re: DanLW]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10621
Dan, welcome. First, forget about the Crown calculator. It has no relevance to use in reflective home listening rooms and grossly overestimates the power necessary for such use.

I calculate as follows: use 90dB as the 1 watt sensitivity for the M80 at 1 meter. 100 watts would result in a 110dB output at that distance. Since, as Dr. Toole and others have reported, sound level in a typical home listening room falls off(taking into account both direct sound and room reflections)about 3dB per doubling of distance, at a 10' listening location the 100 watts are used for about a 105dB listening level on brief split-second peaks. Typical receivers rated anywhere in the 100 watt area are ample. Relax and enjoy.
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#338823 - 02/16/11 09:50 PM Re: How much power is needed to play M80s at reference [Re: JohnK]
SirQuack Offline
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Registered: 01/29/04
Posts: 13567
Loc: Iowa
Dan, not sure what your point is about mentioning another brand of speaker, there are lots of good speakers out there and you will find unbiased feedback, as long as your statements about those brand X speakers are factual.
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#338826 - 02/16/11 09:57 PM Re: How much power is needed to play M80s at reference [Re: michael_d]
BobKay Offline
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Registered: 03/23/10
Posts: 3596
Loc: Massachusetts Badlands
Originally Posted By: michael_d
You can go deaf with a simple AVR pushing 100 WPC in that room.


""Deaf" is for wussies. Very low bar. My goal is to make my defibrilator explode right outta my chest. If I can still hear anything when I finally need one.
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#338827 - 02/16/11 09:59 PM Re: How much power is needed to play M80s at reference [Re: BobKay]
SBrown Offline
aficionado

Registered: 11/16/10
Posts: 901
Loc: Victoria,BC
More the better!

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#338828 - 02/16/11 10:02 PM Re: How much power is needed to play M80s at reference [Re: SBrown]
BobKay Offline
connoisseur

Registered: 03/23/10
Posts: 3596
Loc: Massachusetts Badlands
You are soooooo right! C'mon! It's Rock and Roll!
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Always call the place you live a house. When you're old, everyone else will call it a home.

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#338829 - 02/16/11 10:06 PM Re: How much power is needed to play M80s at reference [Re: JohnK]
solarrdadd Offline
devotee

Registered: 05/04/10
Posts: 310
Loc: Alexandria, VA
my HT room is 15 x 16 x 8 and the 16 side opens via a 4' passage all the way to the other end of the house which is 30'. i have an emotiva XPA-5 powering my front 3 which includes a pair of M80v3's and a VP180v3 center.

if i have my volume about 1/4 of the way up while watching a blu-ray movie, lossless (action movie) it's loud but good, just where it's tolerable and not ear damaging. if i turn it up to 1/2 the way it's almost deafining and i'd have to go all the way back to the other end of the house,at the 30' wall to stand it. 3/4 of the way up there is no way i can stand it even at the 30' wall, it actually hurts my ears, head, it's just too damn loud. if i was playing an SACD and turned it up 1/2 it would crack my skull--i tried it with John Mayer "heavier things" DSD about 1/2 way and i had an instant headache, the music was crystal clear but it really hurt my head and i wasn't near reference levels either.

think quality and not quantity. the 80 series will take everything you have that you can give it and turn it into incredible audio (quality and level wise) i dont' like loud music, but it's nice to know that if i wanted to or for some reason needed to, i could crank it a bit and it would loosen fillings in my teeth!

Oh yeah, the XPA-5 barely just gets warm to the touch even after playing movies and gaming at the 1/4 volumes for several hours in a row. the other two speakers on the XPA-5 are a pair of QS8v3 surrounds. I have a pair of M2v3's doing surround back duty powered by an emotiva UPA-2.

I know not everyone likes or loves the emotiva amps but they have always done right by me and they have powered all of my Axiom speakers in my HT 7 channel system without a problem or exception; no excuses either and my front 3 are crossed over at 40hz so i do put that amp to work during movies! still, barely warms up!

best of luck, hope you can find what your looking for. please keep us posted.
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