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m-80s with m-22s up front??
#65683 10/23/04 06:26 PM
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I am considering upgrading to the m-80 towers, although I love my 22's I am looking for that extra punch. I use the QS-8s as rear surronds, as my couch set-up HAS to be flush to the rear wall. I don't want to sell my 22's. And I can't use them as rears. My Yamaha shows a set-up with the 2 towers up front, and "presence" speakers, smaller speakers also up front 4 total, Any thoughts, or could I place them staggered with the 80s, will them being 8 ohm and the 80s being 4 ohm cause the 22's to play louder, or too efficient? causing a mismatch. Can they be wired together on the same channel (dasiy chained) or does the whole idea just not make sense???


Sunfire amps & processor Sammy 50" Crown amp 2-SVS SS Maple Ultras, Axiom 60s,22s,150cc, QS8s
Re: m-80s with m-22s up front??
#65684 10/23/04 06:44 PM
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The presence channels on your receiver are so that the mains can play only what is supposed to be heard through the front speakers when the audio is decoded directly while the DSP effects are outputted through the two additional "presence" speakers. In my opinion, that is a good thing. Secondly, if you wired them in parallel, the speaker with the lower resistance (impedence) would be the one that plays louder. V=IR --> I = V/R. Voltage is constant, but resistance varies so current (I) goes up when resistance is lowered. Simple Ohm's law application.


Re: m-80s with m-22s up front??
#65685 10/23/04 06:59 PM
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I have M80's and love the sound quality.
I will be more than happy to take the M22's off of your hands. I'm just kidding of course.
Seriously, The M80's are more than enough. I don't know how the M22's would sound as "presence" speakers as I have never liked the way Yamaha does their surround sound modes (my personal experience in the past). Also, you may need to research the Yamaha to see if it can handle a 4-Ohm load effectively. Does your Yamaha do phantom speakers for the sides? If so, this may be another option. I wouldn’t daisy chain the two you might be asking for trouble. If you had a good amp, you might be able to use the m22’s as a huge center channel (using two channels of an amp and a couple of Y adaptors).

Have fun!

Tom



M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM
Re: m-80s with m-22s up front??
#65686 10/23/04 07:04 PM
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All Yamaha receivers can handle 4 ohm loads. They do it the bad way, though, by implementing a current limiter switch.


Re: m-80s with m-22s up front??
#65687 10/23/04 07:17 PM
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Thanks.
My older Yamaha (1992) did not like 4-Ohm loads. In fact it refused to even try to drive them. The receiver would shut itself off after a minute or two. However, I did like it for the most part. The unit performed very well other than the 4-Ohm issue. I have it connected to my PC now


M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM
Re: m-80s with m-22s up front??
#65688 10/23/04 08:07 PM
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Ah - sorry to hear about the issue with older Yamahas. I was unaware that older Yamaha models didn't also have Low Impedence Drive Technology as Yamaha puts it.

So you have something nice connected to your computer too?


Re: m-80s with m-22s up front??
#65689 10/23/04 08:17 PM
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Not as nice as yours


M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM
Re: m-80s with m-22s up front??
#65690 10/23/04 11:56 PM
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Jon, since you're not using amp channels 6 and 7 for back surrounds, it might be useful to set them to drive M22 front "presence" speakers. I've never experienced this, but Mike(mwc)did this some time ago and was rather pleased with the results. Possibly if he sees this he'll comment.


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Enjoy the music, not the equipment.


Re: m-80s with m-22s up front??
#65691 10/24/04 12:07 AM
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That was my thinking John, thanks. Maybe some can weigh in on this, I guess wiring them in with the m-80s is out of the question from what I here. Is this becase the ohms are different


Sunfire amps & processor Sammy 50" Crown amp 2-SVS SS Maple Ultras, Axiom 60s,22s,150cc, QS8s
Re: m-80s with m-22s up front??
#65692 10/24/04 12:43 AM
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Jon, your 1400 should drive M80s very well, and at the regular 8 ohm setting without having to use a lower impedance setting which would limit the voltage and therefore current and power available. Connecting M22s in parallel with them might well cause a problem; the resulting net impedance for paralleled 8 ohm and 4 ohm loads is 2.67 ohms(1/8+1/4=3/8, or 2.67 ohms). Besides that, running two different(even if similar)sets of speakers simultaneously on the same material would tend to muddle the sound.


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Enjoy the music, not the equipment.


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