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#246882 - 02/14/09 07:59 AM Re: Question: Are the M60 and M80 woofers... [Re: Wid]
MarkSJohnson Offline
shareholder in the making

Registered: 09/27/04
Posts: 10675
Loc: Central NH
 Originally Posted By: wid

No chainsaw Mark....???


Oh, I've got three chainsaws. I just figured "You go ahead first"...
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#246890 - 02/14/09 10:49 AM Re: Question: Are the M60 and M80 woofers... [Re: MarkSJohnson]
CV Offline
Founder, Axiom Upgrade Club
shareholder in the making

Registered: 07/20/06
Posts: 11056
Loc: Richland, WA, USA
Chainsaw juggler?
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#246904 - 02/14/09 12:18 PM Re: Question: Are the M60 and M80 woofers... [Re: CV]
lhulls Offline
veteran

Registered: 10/13/06
Posts: 139
Loc: Niagara Region, Canada
the midrange driver(s) are segregated, I believe with cylindrical tubes if memory serves.
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#246923 - 02/14/09 03:17 PM Re: Question: Are the M60 and M80 woofers... [Re: lhulls]
terzaghi Offline
connoisseur

Registered: 04/04/07
Posts: 4840
Loc: Tulsa, Oklahoma
About the M80's: According to an audioholics review:

"Let's talk ports for a moment. The M80ti(s) have three each, one on front and two on the back. The midrange drivers are completely isolated from the rest of the speakers via the internal chamber construction. The triple vortex ports are tuned solely for the dual 6.5" low frequency woofers, which contributes to them attaining such good frequency response."

And about the M60's:
The 5.25” woofer is actually encased in a sealed cylindrical enclosure. This ensures the proper box volume for the midrange to operate and isolation from the rest of the enclosure for optimal performance.
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#246927 - 02/14/09 03:40 PM Re: Question: Are the M60 and M80 woofers... [Re: terzaghi]
ClubNeon Offline
connoisseur

Registered: 02/06/09
Posts: 3442
Loc: Western Maryland, USA
Now that I think about it, every >2-way speaker I've owned (well, both of them; a Fischer and a JBL) has been constructed this way with the isolated mid-range.

When I took them apart I didn't think anything extraordinary about the configuration. It just seemed the right thing to do. Are there manufacturers out there that expose the mid-range cone to the back-pressure of the woofer?
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#246988 - 02/15/09 11:45 AM Re: Question: Are the M60 and M80 woofers... [Re: lhulls]
lhulls Offline
veteran

Registered: 10/13/06
Posts: 139
Loc: Niagara Region, Canada
“cylindrical tubes”
Hmmm - that’s a little redundant

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#247002 - 02/15/09 01:28 PM Re: Question: Are the M60 and M80 woofers... [Re: lhulls]
fredk Offline
axiomite

Registered: 12/06/07
Posts: 6960
Loc: Canada
Actually, I would think a cylindrical tube would be a doughut.

Mmmmm, doughnuts.
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#247003 - 02/15/09 01:32 PM Re: Question: Are the M60 and M80 woofers... [Re: fredk]
CV Offline
Founder, Axiom Upgrade Club
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Registered: 07/20/06
Posts: 11056
Loc: Richland, WA, USA
You're making the bagels cry.
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#247007 - 02/15/09 01:52 PM Re: Question: Are the M60 and M80 woofers... [Re: CV]
Adrian Offline
axiomite

Registered: 12/27/08
Posts: 6557
Loc: It's all about the location.
Cylindrical Tubes....a new Mike Oldfield album maybe?
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#249991 - 03/03/09 11:18 AM Re: Question: Are the M60 and M80 woofers... [Re: fredk]
CooLJ92 Offline
old hand

Registered: 05/12/04
Posts: 65
Loc: California
OK, my tweeter went out over the weekend on one of my M60Ti. Removed the tweeter to confirm it was dead and did notice that the woofers are isolated from the mid and the tweeter. I also noticed the cylinder behind the mid. Very interesting. So yes, I've answered my own initial question that infact the woofers are separated from the mid and tweeter. No "chainsaw" needed this time around as the tweeter was very easy to remove.

Thank you all for responding.

jj


Edited by CooLJ92 (03/03/09 11:30 AM)
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