MMTMM Center channel posibility.

[johnmonk]

Hello.

I have built the CJD / Brian RS 3-ways, and am finally ready to build my center channel.

My hopes for size are 10 inches tall, 30 inches wide max and less than 19 inches deep.

I would think with that big of a box, i have alot of possibilities.

I was thinking of 4 RS 180's and an RS28?

Im just looking for something to fit well with the RS 3-ways

Thoughts anyone???

John

[---k---]

You know, those are somewhat similar dimensions to what I'm limited too. 11x24x19. Once CJD and I get the Khanspire's finished (very similar to yours), I was planning on asking him to do a matching center design. I've been contemplating a RS28/RS150/RS180 WMTW center. CJD also has mused about a dozen differnt center designs. We just need to get him the box and drivers to do the testing and I think anything is possible. (We're so very fortunate to have such a giving person as CJD and others around here.) There's some discussion about this towards the end of the Khanspire thread.

The new JonMarsh Modula NeoCC should also be similar.

[Brian Bunge]

Too bad you can't go 11.5"H. I built Chris' version of the WTMW, which is 11.5"H x 28"W x 18"D and it matches the big 3-ways very well. I can tell you though, 80lb. center channels are a real bitch to move around.

[johnmonk]

Yes.. too bad i cant go that high...

I measured again.. 10" is the max, about 9 3/4 would be really the highest i would want to go.

[sprint_9]

[QUOTE=---k---]CJD also has mused about a dozen differnt center designs. We just need to get him the box and drivers to do the testing and I think anything is possible. (We're so very fortunate to have such a giving person as CJD and others around here.)[QUOTE]


I think C has something in mind for a 2.5 way center with 4 woofers, he has started some work on it but I dont know how far he is, but Im sure he will elaborate some. I think that design would match up well for my space as well and look good below a 16.9 tv.

I agree that we are fortunate to have super people like CJD, Jon Marsh, and Jim Holtz as well as countless others, these 3 have really helped me out with some newb questions through PM's and I really cant thank them and everyone on the board enough, this really is a great place.

[johnmonk]

Well... CJD.. what do you think about a 4 RS 180 / RS150 /RS28 center???

Just throwing it out there..

Since center can be so important to a home theater... can never have too many drivers....

John

[cjd]

Yeah, WMTMW with RS180/RS150/RS28A might be do-able, but there are still center-to-center concerns on the tweeter/mids. No more than my MTM, so it just limits off-axis dispersion to 20 degrees or so. Perhaps sufficient. As mentioned, at the moment I need a box and drivers to work with - my budget for projects like this is on hold until the financials market stabilises (I'm a contractor, my wife works for HSBC in their consumer lending division...) in fact, I'm pondering such a design all around in my HT, when I am able to upgrade there. I'm pondering a lot of things though, and most are slow.

I do have a viable 2.5 way with 4 RS150's sketched out, based on my MTM.

I'm not confident in PE's published RS180 data or I'd sketch some other options with that.

C

[---k---]

I'm willing to build the box and buy the drivers for a project, but it just isn't going to come together for a couple of months. I need a little recovery time in between projects to get projects for the wife done, etc...

[sprint_9]

Yea I know how time and money can come into play, going though a move next week and just out of college with subpar job and no tool inventory of my own (though I have plenty of my relatives tools available) its going to be some time before I pull the trigger on some projects. Atleast I can read and learn about great projects in progess.

[johnmonk]

Well... what about taking an existing MTM (Natalie P for example), and adding 2 more RS180's maybe even ported or something?

Not trying to beat a dead horse, but the RS180's in the 3ways (cjd's design) sound great..

so a WMTMW with the woofers and mids being the same drivers? Is is possible?

[cjd]

You can't simply add two more drivers, for sure. Takes a crossover re-work. I have the stuff to work this on my MTM, which is why I've experimented there to see how it would work. Jon *Might* be able to put a 2.5 way variant together as he has the data files, but the Nat P isn't really suited to horizontal placement either. No MTM is, really. It's not really that good a design choice.

C

[johnmonk]

That makes sense. Ill shut up now and let you do what you do. I was only going that way cause i have 4 RS180's and and actually 2 RS28a's.

Thanks

John

[1Michael]

John, how about some pictures of those RS 3ways? I am in the long process of building those myself. Please please please.

[johnmonk]

I will take some when i get back home.. I am in the middle of vacation and travel, i wont be home for 11 more days...

John

[sprint_9]

Damn thats a nice long vacation

[johnmonk]

I wish.. I was able to take a week in between 2 buisness trips.. So.. a week with the wife in San Diego last week.. now 10 more days of meetings...

John

[cjd]

Wait... vacation... posting here...

what's wrong with this picture?! You're supposed to post here while you're at work! (or in my case, on the train home after a loooong day)

[sprint_9]

Wait... vacation... posting here...

what's wrong with this picture?! You're supposed to post here while you're at work! (or in my case, on the train home after a loooong day)

:lol: Yea the people at work always wonder what Im doing on my long breaks :rofl: