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#391729 - 04/07/13 12:28 AM M80 v3 bad driver
GregLee Offline
veteran

Registered: 03/12/03
Posts: 131
Loc: Waimanalo, HI
Something seems to have come loose in the upper mid-range driver of one of my M80s. At least, that's my conclusion. I'll describe the symptoms below. I'll be calling Axiom technical support soon, I imagine, but I thought one of you might have a suggestion.

I've been hearing some harsh distortion sounds, occasionally, for a while. Piano music, women's chorals would sometimes do it. I had the impression it was coming from the left side, somewhere. I found a TV movie today, Prometheus, with 30 seconds of music that made the problem very prominent, and I started replaying it and putting my ear up to various speakers. I found it. It was coming from my left front, an M80 v3 I bought 2+ years ago. More specifically, from the driver right under the two tweeters.

I found that if I pressed lightly on the right exterior of the cone the distortion went away -- mostly anyway. So I put in place a temporary fix. I have a rolled up piece of cotton gauze pressing against the cone secured by a long piece of Scotch tape across the front of the cabinet (behind the grill). It sounds much better now.

So, it's no longer an urgent problem, but I ought to do something more permanent. I have never had the M80 apart, so I have no idea what's inside.
_________________________
Greg
VP180, M80s, M22s, QS8(4), CSW S305s, EP500, Pioneer SC-1522
M2i, M3(2), Pio vsx-1017

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#391730 - 04/07/13 12:39 AM Re: M80 v3 bad driver [Re: GregLee]
Socketman Offline
connoisseur

Registered: 07/12/09
Posts: 1181
Loc: Whitehorse YT
Its probably just the voice coil rubbing, very tight tolerence there. Contact Brent at Axiom on Monday and they will ship out a new driver , faster than fast. Funny how these things seem to happen on a weekend.

Just a thought , try just loosening the 4 screws and then retighten, see if it clears up.
_________________________
DOG is GOD spelled backwards.
I blame my terseness on my keyboard. smile

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#391732 - 04/07/13 07:17 AM Re: M80 v3 bad driver [Re: GregLee]
MarkSJohnson Offline
shareholder in the making

Registered: 09/27/04
Posts: 10848
Loc: Central NH
I concur.
_________________________
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::

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#391733 - 04/07/13 09:47 AM Re: M80 v3 bad driver [Re: GregLee]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13321
Loc: Iowa
I would check the fasteners to make sure they are snug, just for the fact when you applied pressure to the outer edge it went away.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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