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#351041 - 06/26/11 07:23 PM New amps
lleeds Offline
frequent flier

Registered: 05/07/06
Posts: 17
Loc: Sheridan, WY
So I found out if I listen to Motley Crue at 0db (volume level on my yamaha) that my Outlaw M2200 monoblocks over heat and go into protect within about 15 minutes. I guess I am going to have to upgrade to three Emotiva XPA1s to push my M80s and M180 for those times when I want to rock out smile

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#351045 - 06/26/11 10:04 PM Re: New amps [Re: lleeds]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10411
Larry, the M2200s easily drive M80s to beyond safe listening levels. Have you measured the actual sound levels with an SPL meter when this occurs? 0dB on the receiver being used as a pre-pro doesn't answer the question.

There have been occasions in the past when an intermittent short in the wiring caused a shut-down, rather than overheating, so this should be carefully re-done.

Also, if in fact there was overheating at less than excessively loud and prolonged use, it would indicate that the M2200s aren't being given adequate space for ventilation.

There should be no need for additional amplification.
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#351046 - 06/26/11 10:38 PM Re: New amps [Re: JohnK]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13344
Loc: Iowa
I am suprised by this as well, have you consulted the Outlaw forum? I don't have a bit of problem with my Outlaw 7700.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#351056 - 06/27/11 10:05 AM Re: New amps [Re: lleeds]
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3191
Loc: Toronto/New York/Dwight
Hi lleeds,

JohnK and SirQuack are on the money on this one. It's the first report I've heard of Outlaws shutting down, so I'm fairly sure it's a ventilation problem or perhaps an intermittent short in the speaker wire connections.

On the other hand, the M80s will handle huge amounts of clean power and I have had personal experience at an Axiom party of two of five 350-watt monoblocs shutting down at what I consider were absurdly loud levels. (I was wearing ear plugs and was out on the deck. .)

If you find that ventilation or speaker wire shorts aren't at issue in your system, I'd consider other brands besides Emotiva, since some models of those have had shut-down problems. Look at Parasound, Anthem, and Bryston as well.

Also, regarding the "0-dB" level on your preamp, depending on the voltage output of your preamp at that level, it's quite possible you were already overdriving the Outlaws into clipping, which would shut them down.

Regards,
Alan
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Axiom Resident Expert

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#351057 - 06/27/11 10:55 AM Re: New amps [Re: alan]
BlueJays1 Offline
connoisseur

Registered: 09/19/08
Posts: 4082
Loc: Porch,enjoying Bombay Sapphire
Also if you have your crossover points on the VP180 and M80's set below 80hz or to the LARGE setting, try them at 80hz each to see if that will make any difference. Dips at and below 4 ohms and at frequencies below 100hz is the most current demanding for an amplifier. Especially in instances where the speakers are being played at reference volumes which you are doing.
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#351059 - 06/27/11 11:19 AM Re: New amps [Re: BlueJays1]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13344
Loc: Iowa
another valid point.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#351060 - 06/27/11 11:34 AM Re: New amps [Re: BlueJays1]
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3191
Loc: Toronto/New York/Dwight
Yes, good point, BlueJays1. Thanks.
_________________________
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Axiom Resident Expert

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#351082 - 06/27/11 07:12 PM Re: New amps [Re: alan]
dakkon Offline
connoisseur

Registered: 02/08/04
Posts: 1846
I don't think the M2200's have enough cooling to properly power a 4 ohm speaker. looking at the photos, powering a 4 ohm speaker at a high volume requires a considerable amount of power, in the form of current.. if you like to listen to your music at a high volume, you will have to pay to play.. You might be able to modify the outlaw amps with some aluminum heat sinks, if you can dissipate enough heat from the unit it might be able to provide the power you are looking for.

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#351083 - 06/27/11 07:18 PM Re: New amps [Re: dakkon]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13344
Loc: Iowa
many people have 3-4+ of them stacked with no problems, that is one of the benefits of the design.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#351084 - 06/27/11 07:25 PM Re: New amps [Re: SirQuack]
dakkon Offline
connoisseur

Registered: 02/08/04
Posts: 1846
Yes, but the feet do not appear to be very high, which like others have said, will greatly reduce any thermal convection though the amp to cool it.. If you are not requiring a lot of the amp then that is ok, however if you are trying to operate close to 10/10th's then it looks like the design will not be able to provide max power for a prolonged period of time.

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