Axiom Home Page Forums General Discussion Home Theater Interesting Centre Speaker Discussion

Sure, for those who'd find the described result to be better, two M80s(or M60s, M22s or even M2s)would make them happy. If lowered impedance when driving them in parallel with one amplifier was in fact a problem(wouldn't necessarily occur), then two amplifiers could be fed the center channel material and one would drive each speaker.

Ok cool. So really it is just a personal preference kind of thing. Are there any reasons why someone would not want that type of set up?

Well, again the point is if the small shift of the center image to the side for off-center listeners would be acceptable because it nevertheless would sound better than a centralized horizontal MTM . Using one vertical speaker in the center(either above or below the screen)or using two, one above the screen and one below(as Robb Hutzel does)doesn't have any shift with horizontal listener placement.

Ok that makes sense, I'm with you now. Do you think you could mount the M80 above the screen? LOL

If the glue was strong enough; if not, use center speakers very similar to the mains above 80Hz or so, but much smaller and lighter.

I understand. It was a joke. However the 2 M80's on either side of the picture really is something I may be looking into. Would that be overkill if my mains are also M80's?

I'd say so. Use a smaller speaker(s)in the center.

As you go through the practicalities one can see how the horizontal D'appolito configuration provides the optimal solution to these problems. Anchoring the centre channel to the centre of the screen is very important to acheiving theatrical effect. The MTM configuration involves tradeoffs as well but set up properly it results in a well-balanced, wide dispersion of sound and increased off-axis response. The challenge is that the horizontal centre is in most cases still off plane with the mains. Hence even with the same drivers as the mains there will be a slight change in tonality and timbre.

interesting discussion here.

I was thinking about Axioms VP150, I wonder if Axiom has ever tried a MMTTMM configuration? This is similar to the D'appolito layout with more woofers and tweeters.

Perhaps Allan will chime in? Would this not be a better config than TMMMT?

It is essentially 2 M22s on their sides with the tweeters facing inwards.

The VP150s were originally MTMTM. I don't know if that ever made it to production, but they discovered that the TMMMT sounded better.