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#287090 - 01/15/10 08:20 PM Re: M60s or M80s [Re: Ken.C]
bdpf Offline
aficionado

Registered: 06/28/08
Posts: 769
Loc: Toronto, Canada
Thanks.

I understand the logic, however, isn't it still a low pass even for the sub? You let the frquencies for 0 to 120Hz pass and you attenuate afterwards?
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M80s/VP180/QS8s/EP600/AVR-890
------------------------------------
"The problem is choice..."

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#287093 - 01/15/10 09:23 PM Re: M60s or M80s [Re: bdpf]
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17782
Loc: NoVA
Could be that I have the terminology wrong. Wouldn't surprise me.
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#287099 - 01/15/10 09:40 PM Re: M60s or M80s [Re: bdpf]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10395
Bruno, that setting affects only the LFE channel which contains low frequency effects occasionally present in movies. It isn't the crossover(80Hz or whatever)between the sub and speakers on regular material(movies or music)channels. The LFE channel extends to 120Hz, but in practice little or nothing above about 80Hz is mixed into it. Some want to set the filter to 120Hz in case something useful is occasionally up there, others say that the only thing there is some random noise which could be lessened with a 80Hz setting. Not a matter of much concern either way.
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#287112 - 01/15/10 11:08 PM Re: M60s or M80s [Re: JohnK]
bdpf Offline
aficionado

Registered: 06/28/08
Posts: 769
Loc: Toronto, Canada
Thank you guys for the explanation.
_________________________
Bruno
M80s/VP180/QS8s/EP600/AVR-890
------------------------------------
"The problem is choice..."

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#287173 - 01/16/10 07:10 PM Re: M60s or M80s [Re: bdpf]
drjones Offline
regular

Registered: 01/16/10
Posts: 6
Hi All,

A critical part of my M60 vs M80 decision concerns my receiver, a Marantz SR7002. It's formally rated as 110 wps, but an Audioholics test reported power output: <0.1% THD + N
* 144wpc x 1 8-ohms
* 128wpc x 2 8-ohms
* 180wpc x 1 4-ohms
* 170wpc x 2 4-ohms

Have you had, or do you know of anyone who has had, heat issues with that Marantz running the M80s? Thoughts?

Full fidelity thanks in advance.

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#287179 - 01/16/10 09:50 PM Re: M60s or M80s [Re: drjones]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10395
DR, welcome. Although the 7002 probably couldn't pass the FTC tests for an official rating at 4 ohms(5 continuous minutes at the full rated power into 4 ohms)without shutting down, it's highly unlikely that in real-world home use at sensible and safe listening levels that there would be any difficulty. This is particularly true with respect to the M80, since over a majority of its frequency range it could be rated at 8 ohms and less heat would be generated during operation in those frequencies.
_________________________
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#287195 - 01/17/10 12:37 AM Re: M60s or M80s [Re: JohnK]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10398
Loc: Calgary, Alberta
IIRC, Marantz is one of the recommended receivers by Axiom for use with M80s, along with Denon, H/K, Nad, Rotel to list a few more.
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#287329 - 01/18/10 06:52 AM Re: M60s or M80s [Re: jakewash]
drjones Offline
regular

Registered: 01/16/10
Posts: 6
Thanks JohnK and jakewash. After posting here I later sent the damping factor data from an audioholics review of the Marantz sr7002 to Brent http://www.audioholics.com/reviews/receivers/marantz-sr7002-hdmi/measurements-analysis-report and he feels the A/V shouldn't be a problem. The bind in my mind becomes the question of what the gear will sound like. In a 1600 cubic ft theatre with a vp150 and ep350, would the M80s translate into truly better sound vs the M60s, or would I hear my money. Since blind tests in my theatre with all the comparator gear is a fantasy only - any strong and reasoned opinions? Thanks Axiomites.

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#287347 - 01/18/10 09:02 AM Re: M60s or M80s [Re: drjones]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13337
Loc: Iowa
Hello, Doc. Well, I've owned both 60's and 80's through the years. While they are very similar in many respects and have the same sound qualities, the 80's do give you a little more in the bass category because of the larger cabinet. In addition, since you get dual tweeters and mids, they are also a little more detailed overall at all volumes. It is not a huge difference, but noticable for those that have heard both.
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#287409 - 01/18/10 02:55 PM Re: M60s or M80s [Re: SirQuack]
tomtuttle Offline
axiomite

Registered: 06/20/03
Posts: 8290
Loc: Tacoma
I really like the phrase "hear my money". Good one.

I won't dispute those folks who say they hear a difference between the two; I've heard both, but not in the same room.

And I think there is an important clarification missing from the discussion. It's not "can you tell the difference between the M60 and the M80 when only those speakers are compared?" - it seems to me that - for most people - the more relevant question is "is there a commensurate qualitative improvement in 5.1/7.1 listening when spending more to get the M80's than the M60's?"

Again, I don't KNOW "the answer". However, I would submit that the differences between the two are far more noticeable when you're NOT using center and surround speakers and when you're NOT using a sub.

Since I can't remember the last time I listened to either music or video content in 2.0, and my M60's play as loud as I want them to, I don't really have any heartburn. For me, I'd rather spend the money on other system improvements that I think make more of a difference (bigger TV, better sub, rear speakers, BFD, upgraded finish, etc.). YMMV.
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