Axiom Home Page Forums General Discussion Advice from Axiom Owners Anyone running M80s off an emotiva UPA-7?

That's what I figured about those resistors. There's something else happening if there's distortion.

most people have had problems with the xpa2 m80 combo this is no secret.. I have played my xpa5 in all channel stereo and just stereo(m80's)full range at loud levels for hours with no shutdown's ever.
I am not saying this to start a shit storm I am just giving observations.
the m80's seem to be the speaker with the most problems when being driven by emo amps. there are many 4 ohm speakers that have no problems with emo amps.. including emotiva's own 4 ohm speakers.
I know test's were done with sirquacks mps1 being crossed over above 80hz(way above 4 ohms I believe) and the amp still shut down which is crazy. But to this day I have never seen any info on what the m80's impedance is 40hz down to 10hz

Down to 20Hz it doesn’t seem to dip below 4ohms:

http://www.soundstagemagazine.com/measurements/axiom_m80v2/

Sounds to me like Emo knows it’s the protection circuit causing it since they are offering a modified version. I wonder what effect that has on the amp’s performance since you’d think they would just make the modified circuit standard unless there is some reason not to. I know of no other amps having this problem even Emo amps.

Turbo, there have been other brands of 4ohm speakers with issues, even 4ohm bookshelf designs from AV123 (rockets, etc.)so it is not specific to Axiom. It is possible that the new offerings from Emo have improved. Also, keep in mind how many amplifier brands are out on the market, and you don't hear about them having issues with 80's.

"Also, keep in mind how many amplifier brands are out on the market, and you don't hear about them having issues with 80's." This is true....
I can't think of what model rocket was 4 ohm though?

Yea I was looking for that graph... Thanks..
It would be great if axiom would give us the full range down below 20hz just to clarify this low ohm rumor.

I see no point in going any lower with the graph. It seems simple, piss poor design on the amp side.

Axiom graphs may satisfy some but I have no doubt they would be meaningless to “Blame Canada” (M80s) crowd which is why I posted the Soundstage measurements.

The graph has been posted multiple times and there's still folks that swear they drop down to 2 ohm but provide no proof. What else can be said.

I don't think that is justifiable

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