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#124309 - 01/15/06 02:38 AM Re: Twin Center Channel Speaker Placement
Richie Offline
veteran

Registered: 01/06/06
Posts: 137
Loc: IL, USA
Rick:

Yikes! My M80ti's will turn into 2-ohm speakers! :-)

I am actually very happy with the VP150 as my center speaker. That plus the two front M80ti's are all I need in front (for now!). The M80-VP150-M80 trio create a seamless soundstage. The Denon 3805 is rated at 120wpc, and is very good in most HT's. But I am sure I will get better separation if I use a 200-300wpc amplifier for those 3 front speakers. I plan to do that later this year.

My rear M80's really shine when I am listening to multichannel music (SACD's and DVD-A's). I know they are overkill for Dolby/DTS 5.1 movies. I will probably get a pair of QS8's and use them as back speakers.
_________________________
4 M80s/VP150/EP600/Denon AVR-5308 & DVD-2910/
2 QSC SRA3622(1100wattsX2)/Carvin 1800HD(600wattsX2)

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#124310 - 01/15/06 02:45 AM Re: Twin Center Channel Speaker Placement
Richie Offline
veteran

Registered: 01/06/06
Posts: 137
Loc: IL, USA
Still thinking...Four M80ti's as fronts...Hmm...
So where can I get a good amplifier for my 2-ohm M80ti's?
_________________________
4 M80s/VP150/EP600/Denon AVR-5308 & DVD-2910/
2 QSC SRA3622(1100wattsX2)/Carvin 1800HD(600wattsX2)

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#124311 - 01/15/06 11:28 AM Re: Twin Center Channel Speaker Placement
bugbitten Offline
connoisseur

Registered: 04/06/05
Posts: 2339
Loc: Madisonville, KY
Something from Crown should do the trick.

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#124312 - 01/15/06 01:27 PM Re: Twin Center Channel Speaker Placement
Ken.C Offline
shareholder in the making

Registered: 05/03/03
Posts: 17695
Loc: NoVA
Or you could split the signal from the preamp and then use a regular old 2 channel 4 ohm capable amp to do it.
_________________________
I didn't do it, no one saw me, you can't prove anything.

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#124313 - 01/16/06 12:06 AM Re: Twin Center Channel Speaker Placement
Richie Offline
veteran

Registered: 01/06/06
Posts: 137
Loc: IL, USA
Thanks for the link to the Crown amps. I just looked at the specs. Wow! Those amps certainly pack a punch! And I am sure they also cost a lot! :-)

I think I will just have to split the signal from the pre-out and use one of my unused amp channels.
_________________________
4 M80s/VP150/EP600/Denon AVR-5308 & DVD-2910/
2 QSC SRA3622(1100wattsX2)/Carvin 1800HD(600wattsX2)

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#124314 - 01/16/06 10:37 AM Re: Twin Center Channel Speaker Placement
alan Offline
connoisseur

Registered: 01/29/02
Posts: 3178
Loc: Toronto/New York/Dwight
Hi BrotherBob,

I've not tried it, and it should work OK but there is one little catch. The idea of using two center channels, one above and one below the screen, is that the two centers produce a "phantom" image that's locked in the center of the screen, which is a consideration with large 120-inch front-projector installations.

If you use two centers on each side of the TV display, there is a possibility that for viewers sitting off-axis to one side or the other, the dialog will move to the center speaker nearest the viewer, in the same way that if you just listen in stereo and sit to one side, the soundstage shifts to your side to the speaker nearest you.

With a large display, and centers to each side, the shift of dialog to one side of the screen might be perceptible and off-putting.

Incidentally, magnetic radiation from a speaker affects only Cathode-Ray Tube (CRT) displays. LCD, Plasma, DILA, and DLP displays are immune to any sort of magnetic radiation.

Regards,
_________________________
Alan Lofft,
Axiom Resident Expert

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#124315 - 01/16/06 12:08 PM Re: Twin Center Channel Speaker Placement
Capn_Pickard Offline
connoisseur

Registered: 03/09/04
Posts: 1056
Loc: Arlington, VA (NOVA)
Interesting link. Yesterday, I finished hanging the plasma on the wall (pics soon). The change from a tube to the plasma meant that the center speaker (VP100, only) was moved from above the TV (~4.5 feet up) to around two feet off the ground, resting nicely at about the same level as the mid-range driver in the M60s. This placement was not only necessary, but prefereable from a cosmetic point of view.

I found the sound stage to be much tighter and panning was better. With the speaker lower, it is more at ear level, and voices are clearer and richer.

Comparing the two choices, I agree all the way with the problems associated with having a center channel too far above the other front speakers.

Now, of course, I'm itching to upgrade to a VP150 ... stop it, stop...[/swatting hand reaching for check-book]

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#124316 - 01/17/06 12:39 PM Re: Twin Center Channel Speaker Placement
michael_d Offline
connoisseur

Registered: 07/23/04
Posts: 3820
Loc: Up yonder
I’ll be using two M22’s on stands as a center channel. I had intended to place them about one foot apart under the screen, as high as possible. Two M60’s as centers would be pretty cool two. I don’t have room under the screen though.
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