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#148592 - 10/02/06 08:23 AM A/V Receivers for driving M80s?
Danno Offline
regular

Registered: 09/28/06
Posts: 8
In my new theater, despite the small area, I am considering M80s as my main front speakers (The wife LOVES big sound, so who am I to argue?!) I know that they are 4 ohm. Does anyone have any suggestions on A/V receivers that would drive the M80s appropriately? Would any 100+ watt A/V receiver from the Onkyo, Denon, Yamaha, etc. be OK with the M80s? I have a Onkyo's TX-8511 stereo receiver and TX-SR504 A/V receiver, and am very happy with them. Their TX-SR703 and TX-SR803 list as 4 ohm capable; these are 100 and 105 watts, respectively.

I don't think I want to go the 'separates' route just yet, as this is my first theater. I'm hoping to buy a quality A/V receiver that can drive the 4 ohm M80s appropriately. Any suggestions would be appreciated!

Thanks!

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#148593 - 10/02/06 10:20 AM Re: A/V Receivers for driving M80s? [Re: Danno]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13318
Loc: Iowa
This question come up a lot. For the most part, Axiom has said that most HK's, Denons, and NAD's will have no problems. There was a time where some Yammy's and Pioneers had issues, but that may not be the case anymore. Hope other members will chime in.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#148594 - 10/02/06 10:41 AM Re: A/V Receivers for driving M80s? [Re: SirQuack]
newf Offline
devotee

Registered: 04/14/05
Posts: 344
my rxv-4600 handles my setup just fine.

But, how big is your room? If it's really large you might want a dedicated power amp. I've freed up one of my Carver power amps and started using it on the m80's, but to be honest I really didn't need to. Ironically, even with the 80's off of the yammie, it still gets just as warm...anyways, I'm going on and on....

I wouldn't go any smaller then the rxv-4600 though.

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#148595 - 10/02/06 10:54 AM Re: A/V Receivers for driving M80s? [Re: newf]
Danno Offline
regular

Registered: 09/28/06
Posts: 8
My room dimensions will be 10.5' W x 7' H x approx 24' long. I've read up on Denon a bit, but I'll look into HK. If I remember from my limited reading on HK, it always seems that their watts output always seemed lower than Denons, Onkyos, etc. Does HK measure wattage output differently?

FYI, if going with the M80s in this size of a room is COMPLETE overkill, you can tell me.

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#148596 - 10/02/06 10:57 AM Re: A/V Receivers for driving M80s? [Re: Danno]
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3186
Loc: Toronto/New York/Dwight
Hi Danno,

How big is your room (length,width, height) and do you like to listen at insanely loud levels, like a few people I know? If so, then definitely consider using a separate power amp for the M80s, with a rating of 150 to 300 watts per channel into 4 ohms. You can use the AV receiver for all the other channels.

Beware of Onkyo and some other manufacturers' claims as to being "4-ohm capable". If it's based on a bogus "dynamic power into 4 ohms" rating, that means it may drive a 4-ohm load for a fraction of a second, then overheat and shut down.

If deafening playback isn't a requirement, then at Axiom we know from customer experience (as well as having a number of different brands of AV units in our listening rooms) that any Denon or H/K AV receiver , even their entry-level models, will drive the 4-ohm M80s with no problems. So will AV receivers from Sherwood Newcastle and NAD. The Pioneer 1015 with MOSFET output devices will drive the M80s just fine. The aforementioned are the only brands I unhesitatingly recommend if you are getting M80s.
_________________________
Alan Lofft,
Axiom Resident Expert

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#148597 - 10/02/06 11:12 AM Re: A/V Receivers for driving M80s? [Re: alan]
Danno Offline
regular

Registered: 09/28/06
Posts: 8
Thanks, Alan! My room dimensions will be 10.5'W x 7'H x 24'L. I don't like insane levels of volume, but will want to shake the room from time to time. Actually, my wife likes to listen lots louder than I do. Given that, are the M80s complete overkill? Also, would an EP500 or 600 be overkill for that room?

A question on the H/K receivers. It seems that their wattage output levels seem much, much lower at any given price point than other brands. Would a 65w or 75W H/K drive the M80's?

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#148598 - 10/02/06 11:33 AM Re: A/V Receivers for driving M80s? [Re: Danno]
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3186
Loc: Toronto/New York/Dwight
Danno,

Duh, I missed seeing your room dimensions earlier in the thread. No, the M80s are not overkill in a room like that, nor is the EP500. You don't need an EP600, which is wonderful for very large rooms.

H/K's measurements are very conservative and honest; they usually deliver considerably more than their rated output in bench tests. Figure on an H/K that is rated at 75 watts per channel being equivalent to a Denon that's rated at 110 per channel.

Since you don't require insanely loud playback levels, look at the Denon 2807, 3806, or 4306. The 4306 was recently highly reviewed at audioholics.com . The H/K 635 is also worth looking at.
_________________________
Alan Lofft,
Axiom Resident Expert

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#148599 - 10/02/06 01:11 PM Re: A/V Receivers for driving M80s? [Re: alan]
RickF Offline
axiomite

Registered: 02/26/05
Posts: 5210
Loc: Vero Beach, Florida
>>> Figure on an H/K that is rated at 75 watts per channel being equivalent to a Denon that's rated at 110 per channel.

Wow, I sure didn't know the difference was quite this much.
_________________________
Rick
Our Room

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#148600 - 10/02/06 01:22 PM Re: A/V Receivers for driving M80s? [Re: RickF]
bugbitten Offline
connoisseur

Registered: 04/06/05
Posts: 2339
Loc: Madisonville, KY
Quote:

>>> Figure on an H/K that is rated at 75 watts per channel being equivalent to a Denon that's rated at 110 per channel.

Wow, I sure didn't know the difference was quite this much.




I think that's the reason I like my amps with my 80s.

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#148601 - 10/02/06 02:05 PM Re: A/V Receivers for driving M80s? [Re: RickF]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13318
Loc: Iowa
Quote:

>>> Figure on an H/K that is rated at 75 watts per channel being equivalent to a Denon that's rated at 110 per channel.

Wow, I sure didn't know the difference was quite this much.





Dang, maybe I should have got an HK instead of my 2805.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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