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#11429 - 05/28/03 10:14 AM Any way to make the M80 a 6 ohm or 8 ohm speaker?
TheDude Offline

Registered: 08/21/02
Posts: 5

Ok, now for the stupid question: Is there any way to make the m80 a 6 or 8 ohm speaker? My current receiver will not drive a 4 ohm load and my planned upgrade to a Denon 3808 won't either. I know that I could use external amps capable of driving this load but the new house got all of my money.

Any ideas anyone ?

Best Regards,
The Dude

#11430 - 05/28/03 11:28 AM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
Haoleb Offline

Registered: 09/25/02
Posts: 1488
Loc: Maine
i would just buy a reciever that has the guts for it. look at NAD's recievers, im pretty sure any one of them can do 4 ohms
Haoleb's Audio/DIY Website

#11431 - 05/28/03 01:12 PM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
lando622 Offline
old hand

Registered: 02/16/02
Posts: 82
Loc: Florida, USA

Though not the easiest to find on Denon's site, their FAQ #9 states that 4-ohm loads are no problem. Check it out at:
Denon FAQ.

Happy listening!


#11432 - 05/28/03 01:12 PM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
alan Offline


Registered: 01/29/02
Posts: 3267
Loc: Toronto/New York/parry Sound
Hi Dude,

No. If you put a bridging resistor across the speaker terminals so your amplifier "sees" 8 or 6 ohms, you'll just dissipate lots of amplifier power in heat, wasting your amplifier output.

Most Denons are stable driving 4-ohm loads (even though they don't state that) as are the Harman Kardon AVR525 (which I use, and it drives the M80s with no difficulty) and larger H/Ks.

Alan Lofft,
Axiom Resident Expert (Retired)

#11433 - 05/28/03 06:17 PM Re: Any way to make the M80 a 6 ohm or 8 ohm speak
sushi Offline

Registered: 02/09/03
Posts: 1490
Loc: Dallas, TX
The Dude,

Have you actually tried your receiver with the M80's? I bet that most decent receivers will actually tolerate the M80's, especially given its high efficiency (meaning, less average power required). For example, even though Pioneer does not officially support a 4-ohm speaker, my Elite 45TX receiver is humming along with my 4-ohm Hales at pretty high volume levels. I believe that Denon officially supports 4-ohm loads with their mid-priced receivers and higher. But I would first try it with your existing receiver.

#11434 - 05/29/03 06:18 AM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
dajlc Offline

Registered: 04/22/03
Posts: 29
Loc: Australia
G'day dude,

I have been scouting around for a pair of front speakers for quite some time now and the M80s was among the few that caught my attention. However, I am using a NADT761 avr with 8 ohms impedance. Several audio experts have advised me that it's ok to hook them on but with my limited knowledge on audio electronics, I still have reservation to go ahead. Invariably, I have now assessing M60ti, knowing that I don't have any incompatibility problem.

Nevertheless, I am still interested to hear what the others say.


#11435 - 05/29/03 07:06 AM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
real80sman Offline

Registered: 05/16/02
Posts: 1177
Loc: Ontario, Canada
Hello everyone,

I've been using a set of M80's for about 2 years now with a 15 year old Luxman integrated amp. It is rated at 70w/ch at 8ohms. It is a super clean amp that sounds terrific. On the back of the unit it states that it wants 8 to 16 ohm speakers.

The only time I have a problem is when I am listening for extended periods at extremely loud levels. The amp will start to get hot and then go into thermal shutdown. Within 2 minutes, it has cooled sufficiently to come back on. (Usually this only happens when I have had too many beers)

Don't forget that the 80's are very efficient with the power delivered to them, so they play loud even at lower volume settings. Most people I have over can't beleive that the amp is only 70watts.

Don't be afraid of the 4ohm rating unless you are looking at very inexpensive receivers. Most NAD, Denon, and H/K units should handle the M80's with no problem.

Epic 80/600 + M3's + M3 Algonquins + M2 Computer + EP125
I think I'm developing an addiction.

#11436 - 05/29/03 10:55 AM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
Pinoy Offline

Registered: 10/26/02
Posts: 115
Loc: Kansas City, Missouri
Just to add more comfort to what has already been said. I have been using Denon 3803 on M80 since November and I never had any problem. The receiver does not even get hot and I never experienced any shutdown. Sometimes I listen to music for hours or watch 3 consecutive movies without any problem.

#11437 - 06/08/03 08:12 AM Re: Any way to make the M80 a 6 ohm or 8 ohm speaker?
Bself Offline
frequent flier

Registered: 05/17/03
Posts: 11
Loc: Ohio
I have a 25 year old Pioneer 185 watt (SX-1280) receiver hooked up to my M80's and I had problems after I hooked up the M80's. The receiver went into protection mode at levels it hadn't with my earlier 8 ohm speakers.

The M80's were not at fault. Becuase of this problem I sought out ALOT of advice and eventually made some basic adjustments to the receiver. (It turns out DC offset and Bias needed adjusted) My initial thought was it had to be the 4 ohm load but they were adamant that was not the case. I'm glad I listened. With things running the right this combo sounds incredible.


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