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IMHO the CCR center speaker and CC bass stand are seriously flawed in terms of how they are designed. I'm posting this because anyone who plans to but the CCR and CC under a rear projection TV needs to be aware of this problem and flaw in the design.
The first and main problem is the height of the stand, at 16.75" plus the height of the center speaker at 15" for a total of 31.75". This is simply too high for many, if not almost all, rear projection 60" to 70" TVs with the stands supplied for those televisions. For example, the bottom of the actual screen image on my Sony 60" SXRD is 24.25". That means that in order to put the CC-CCR combination in front of that TV, I would have to put the TV stand on concrete blocks. It is a safe assumption that this same problem would occur with almost all large rear projection TVs that must use the stand supplied by the manufacturer.
This could have easily been prevented. The CC bass stand is significantly narrower in width than the CCR speaker, with the result that the bass panel is quite high. (Look at the photo on the Magnepan web site.) If the CC bass stand had been designed to be as wide or wider than the CCR speaker, then it could have easily had the same surface area for the bass panel and fit under rear projection TVs. I'm left shaking my head and wondering what Magnepan was thinking. A simple visit by Magnepan to a Best Buy, or to a local high end TV store, using a tape measure, would have confirmed that this design simply doesn't work for many Magnepan owners who own such TVs. When I spoke with Wendell, he claimed that they consulted with dealers on the design. My response was that the dealers must not own a tape measure either.
In response, Wendell tried to minimize the magnitude of the engineering mistake, by arguing that the center speaker can be integrated with the 20.1s through bass management and that you don't need the bass stand.
But there are two problems with that argument as well.
First, center speakers carry a great deal of bass information, and it is directional. The best setup would utilize a center speaker that can at least reach down to 80 hz and 50 hz would be better. I would gladly buy both the center speaker and bass stand -- if it was properly engineered to fit under rear projection TVs on the their own stands.
Second, the so-called "solution" offered by Magnepan, since the CC bass stand is the wrong size, is to use bass management. Their solution is to turn off the subwoofer, and direct the bass to the front 20.1s. But that is not possible with a processor like the Lexicon MC-12HD. It will route the bass to the speakers with the lowest crossovers, such as sides and rear, and then signals lower than the lowest crossover point are directed to the crossover. (See page 3-27 of the Lexicon manual.) It is not possible to tell the MC-12HD to send the bass from the center speaker only to the front speakers. That means that the bass from the center would be all over the room.
Mangnepan claims, in the CCR manual, that their design solves the problem of the "hole" in the center. Well, with one of the top of the line processors, it actually moves the hole all over the room, and does so with bass all the way up to 200 to 250 hz.
My conclusion is that I'll keep using my Martin Logan Theater center speaker. It goes down to 80 hz, which is an improvement over the 200 hz cut off of the Magnepan center.
If Magnepan had simply gone to a local TV store with a tape measure, and designed a bass stand with the correct height to fit under large rear projection TVs, then the problem would be solved. Those who want a center speaker with bass down to 50 hz could buy one. Those who need to do so due to problems with bass management could do so.
Unfortunately, that option does not now exist. I will wait until Magnepan corrects a seriously flawed design and simply widens the bass stand, and reduces the height. I might have to wait for five years, given Magnepan's reputation for very slow introduction of new products, but Magnepan will have to do it eventually. Next time I hope they will actually measure the TVs that will have a center speaker placed in front of them.
Follow Ups:
The real problem is that the voices on TV need to come out of the screen. No center channel is going to be placed in the right position for that. So no mater what the set-up is, it's going to be a compromise. Maggies/Flat Panels have some designed in issues with polar response and there is no way around that either. I guess like any system, you have to make the adjustments you can live with, sometimes that calls for special solutions.
Sorry to resurrect the thread, but it's not an engineering mistake. Ideally you'd want a third full height speaker, like your L&R mains, for a center channel. Obviously with the height limitation that a screen dictates, you need to make it shorter. Now why not make it a wide short rectangle? Dispersion pattern. You'd wind up with more sound up and down and very little to the left and right. This would result in anemic mids to the right and left of the center as well as reflections off the floor and ceiling.A wide and short woofer would effectively a 1.7 on it's side. Get on a ladder 3 feet in front and 3 feet above of your floor standing maggies. Not much response there. That's what you'd be getting off to the left and right.
The height is an engineering decision (aka a compromise) to maximize bass response with a given height while having an acceptable dispersion pattern.
Edits: 12/29/13
I disagree with your assessment regarding the Lexicon MC-12HD. Specifically Section 3-27 reads as follows:
"In a custom setup, low frequencies are generally redirected from
speakers with the highest crossover points to speakers with the
lowest crossover points. Signals lower than the lowest crossover
point are redirected to the subwoofer. If the lowest crossover point
is FULL, low frequency signals, excluding LFE information, are not
redirected to the subwoofer."
I use the Lexicon MC-12 HD EQ with the CCR Center channel, the 20.1's set to "full," and four CC1's as surrounds, plus a sub set for LFE only. In that configuration, the lower center channel frequencies are just sent to the 20.1's. Works just great for me, although I did get some help from Wendell in walking me through the setup.
SD
I run a Def Tec 2500 for my center and a SVS PB13 ultra for the sub,, for HT watching the 1.6QRS are supported by the center, sub and modified AR2s on the sides,, for pure music I switch the Marantz to pure direct and it only feeds the maggies,,
I also have a pure music area with Altec VOTs tied to a tube Fisher and it is pure stereo,,
would never do a HT without a center support,,
Derry
common sense is not common
More likely, I think, that they'll leave it as it is, since few if any rear projection sets are sold these days. Why the center channel speaker, anyway? Unless you have theater-style seating and need to anchor the dialogue for people sitting at the sides of the room, it does nothing except degrade the sound.
Many people who buy 60 to 70" flat panel TVs are not likely to put them on a stand as high as 32" and be looking up at the TV. Most would prefer a lower stand. My point remains the same.
I can't imagine not having a center speaker to lock dialogue in the middle. It improves the sound and does not degrade it. Magnepan apparently agrees on that point, given the introduction of new center speakers, even if they are of the wrong height and impractical.
I have a 100" projection screen and there's plenty of room for a Maggie woofer under it. Not sure if it would accommodate the center channel speaker too, I wasn't interested in that, just in finding a way to fit a larger planar woofer in my undersized listening room. Of course, some may prefer their screens lower down. You can't accommodate everyone.
Magnepan sells center speakers because people buy them! And because they do have a legitimate purpose in the case of theater-style seating. But the quality of the Maggie center channel speaker doesn't match that of the 20.1, not to mention most of their other models. Even if it did, the soundstage height would be wrong because they're too low. And a center channel speaker reduces the quality of the stereo image for a listener in the center because of phasing problems. The center channel is there only because it's needed in a theater. And most home users don't realize this, so they waste money on something that merely compromises their sound.
For that reason, I always recommend that people avoid a center channel unless as I said they have theatrical style seating, or have to push their speakers so far apart to accommodate sight lines that they end up with a hole in the middle. In that case, it's still best to disable the center channel speaker when there's no one sitting to the side. The dialogue won't go anywhere if you're sitting in the middle!
IMO, it would be a crying shame to have this stuff reproducing most of the music when it could be reproduced by two true line sources with a much bigger woofer, a push-pull midrange, and perhaps the finest tweeter ever made.
Of course it works for your 100" screen. That's not my point, is it?
Especially if it is a screen that drops, since how far it drops can be adjusted. I have a 110" screen, that drops in front of my TV, and any center speaker, no matter what size, would work with my screen. But many times I watch TV with the lights on and need a center that works with both my TV and drop screen. But not everyone who buys these speakers has the luxury of a drop screen or anything that is 100".
Almost everyone with EITHER a 60" flat panel or a 60" rear projector will have it on a stand that is 6" to 8" lower than the combined CC and CCR. Almost no one will have it on a stand that is 32" up in the air.
I still think it is an incredibly dumb design, and reflects that Magnepan didn't go to a Best Buy or TV store and use a tape measure. Yes it works with a drop screen. No, it doesn't work with any existing rear projector OR with the lower height stands that would be used by most people with 60" to 70" flat panel TVs.
If you have six to seven people in a room, or more, three or more will be off-axis. For them a center speaker is mandatory.
Does it compromise the 20.1s for music? Yes. So turn off the center and use stereo or analog bypass straight to the 20.1s.
My original point still applies. For those who want to use a center speaker, this design will likely not work for anyone with either a 60 to 70" flat panel or rear projector TV.
Well, I don't like to second guess the designers without good information on the trades they faced, such as perceived image height (the closer to ear level the better), lateral dispersion, and dipole cancellation, as well as an understanding of the anticipated market. And if I had to accommodate a plasma or LCD, I'd just use a taller stand.
None of which of course applies in your situation, or to that of others who have rear projection sets. Since you do have reason to use your center channel, it seems to me that your best option would be the bass rerouting one. How much does the base cost? If it's $1600 like the Maggie woofer, an electronic bass routing solution would cost less.
I can only report that Wendell did not raise any of those issues about lateral dispersion, etc. He had simply *not* considered that the height of both the CC and CCR would not work and was surprised to hear that.
And, again, this applies to almost all 60" flat screens AND rear projectors. I believe most people would use a stand of less than 32" for a 60" TV regardless of the type -- for the same reason that manufacturers put rear projectors on stands are less than 32"
This is only a difference of 8" at most. But those 8" matter for 60" TVs. Look at the photo of the CCR and CC on the web site. By simply making the CC stand wider, they could have easily reduced the height by that amount. But, based on my conversation with Wendell, Magnepan never even considered it.
Not sure how much a bass router would cost. I'd prefer to just use my Lexicon MC12HD. I can't comment on whether other high end processors work like the Lexicon, which rules out the precise bass management suggested by Magnepan.
My view is that Magnepan has cost themselves a significant market share by virtue of a design that is about 8" too high. They will eventually have to correct it. I will wait and use my Martin Logan center in the meantime, however long that will be.
Others in the same situation should look at other centers such as Martin Logan.
Rear projection ???? People actually still use those ? And stands ?? What are those for ? I thought adjustable wall mount brackets were what people use in 2013. I did see a place that still carries rear projection Mitsubishi stuff, but they are still to damn big and take up way to much space compared with a flat panel on the wall.Come to think of it I don't think I know anyone that has rear projection these days. I think the center channel problem might affect about 0.5% of HDTV owners so Magnepan has it about right. IMHO as always :^)
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You could use an active crossover and a couple of resistors. Or throw together a passive one. Kludgy, I know: Lexicon should just direct the midbass from any speaker set to small to the front speaker on the same side if that speaker is set to large, or both front speakers in the case of a center speaker set to small. That they apparently don't seems to me a design oversight on their part.
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