Two way LCR for home theater

[NoMjolnir]

Hi there, I've been lurking on these boards for quite some time.

Were in the process of building a new house and with that a dedicated HT room. (see attachment)
The room is L 6.4 x W 5.0 x H 2.8 Meters

At this time I have Klipsch RF-83 and RC-64 as LCR and will use those when the HT is completed, but for a future upgrade I've been looking for DiY plans for home theater LCR's.

I'd like to build an active two way system (or three ? ). Zilch's Mega system caught my attention.
http://www.audioheritage.org/vbullet...&postcount=419

I'm thinking of using the
JBL 2352 horn
http://www.usspeaker.com/jbl%202352-1.htm
2435HPL Compression driver.

From sub x-over (50-80hz) to horn x-over (800-1200) I was considering two Usher 15HM. Two of these placed horizontally below the horn. Seperate enclosures.
http://www.partsexpress.com/pe/showd...number=296-630

In the front of the room I will be building a false wall which can house the horn and seperate box(es) for the LF drivers. The LF boxes and the horn can be positioned by making a holdingshelf between the studs of the false wall, so the LCR's will be flush mounted in the false wall so to speak. The three front speakers will be positioned in ear level height with the perforated screen covering at least the center monitor. The front of the wall will be covered by acoustic panels and the unused cavity can be filled with fiberglass for bass trapping.



So is this viable, the 2352 horn + compression driver, Usher LF driver, behringer electronic crossover and one amp for each lf and hf for each of the three monitors?

[4343]

It might be difficult to match the center to the LR pair if it's the only one experiencing the HF rolloff of the screen. Maybe not, but if it was me, I'd put all the fronts behind the screen just to be consistent. Sounds like the horns should have plenty of output, and losing some through the screen would be no big deal...

[NoMjolnir]

It might be difficult to match the center to the LR pair if it's the only one experiencing the HF rolloff of the screen. Maybe not, but if it was me, I'd put all the fronts behind the screen just to be consistent. Sounds like the horns should have plenty of output, and losing some through the screen would be no big deal...

I'll be using a SMX curved perforated screen, supposedly the loss is minimal. I guess I can experiment and take measurements when the time comes.

So, guys, has anything like this been done before? Perhaps there is another DIY HT LCR project you could point me to for ideas and inspiration?

The reason I chose the 2352 horn is because size is no issue and and the spread fits nicely for an LCR since they are supposed to be point sources and there will be less room interaction.
I'm unsure about compression driver though.
I chose the Usher LF driver because it's been getting alot of positive feedback from other projects. The response seems to fit well for an 800-1000hz x-over. With the behringer digital xover I'll probably use 24 or 48 db db/octave rolloff. Perhaps there is a JBL model which would be better suited to handle 80-1000hz?

[pos]

Just for inspiration, here is Greg Timbers' take on a DIY HT system:
http://www.audioheritage.org/vbullet...ead.php?t=9951

Perhaps there is a JBL model which would be better suited to handle 80-1000hz?

1200FE?

[NoMjolnir]

Just for inspiration, here is Greg Timbers' take on a DIY HT system:
http://www.audioheritage.org/vbullet...ead.php?t=9951

1200FE?

Breathtaking!

[NoMjolnir]

http://www.partsexpress.com/pe/showd...number=296-630

Are there any drawbacks for using an 15"'s up to 800-1000hz? cone breakup etc? Should I perhaps opt for a three way with the 15"'s working up to 200-300 range and have multiple 6.5" or 8" work up to 800-1000hz?