Originally Posted by Erich H
I've listened to some prebuilt commercial crossovers and they don't really make the cut for home use. They just make your ears bleed after a while.
I also think it would be a good idea to start with drivers we can easily get by a fairly high quantities. Beyma looks interesting, but I don't see much reason to push an 8" down that low for what they'll be used for by most people. Parts Express now carries Faital Pro. That was one brand I was going to consider last year.
It might make sense to do an Eminence coaxial to keep prices under control. Then a FaitalPro and/or B&C model for something more expensive. One of those B&C models has a compression driver on the back that doesn't test very good. I can't recall which model right now though.
I've got about 30+ different compression drivers at my house, but few are the screw on type. I do have a couple screw on BA-750's though.
I wonder how that would do with the Eminence 12" coaxial???
An adapter could be installed so we can use a bolt on CD, but that just moves the CD back a bit farther and creates another seam inside. It might not be an issue, but it's something to consider.
I think that is a good track to take. As far as the b&c 12" I'm afraid it would go over the size limit for a whole lot of folks interested in these for surrounds. I myself like the 10's I am currently using, but would easily move down to 8's if I could match the performance. The beyma simply caught my eye as the dual concentric design fairs better in FR typically, and the response graph looks great on it. The B&C's have some excellent potential as well
The 8cxt is after all what seaton uses in the middle of his Catalysts, and if we did in fact end up using it as an option, I would almost certainly catapult that to a CatClone design for LCR's. As far as adapters go, I don't know how that would affect the sound, but it doesn't hurt to measure one. I do understand though that takes actually making the adapter to do though
The 8cxn51 also looks sweet. I think that is a de250 on the back of that thing, so at least we know the CD is good
Originally Posted by MovieMike
All great options on the table. There is a crossover available (model X01) for the B&C 8cx21 coax and runs about $60 if IIRC. Maybe we could get Parts Express to carry for a bit less? Or get Mtg90 to design a cheaper/better crossover, akin to what he did for the Minion.
Besides, the TS parameters for the B&C coax woofer are essentially the same as the B&C woofer in the Minion (8ps21)... we could use the same enclosure and modify the baffle slightly (get rid of the horn cut-out and center the woofer)....an BAM we'd be cooking with Crisco. (You fellas see I've given this A LOT of thought, I need cheap timbre matched, point source surrounds to match my Danley SH100s LCR which also use the B&C 8cx21!!!!). I'd buy 4-6 such surrounds speakers immediately !
It certainly appears you have
I like the minion idea, but I also agree with Adam that having the option of the slanted orientation or the standard is good, although I think more folks would lean towards the slanted. I too have Danley's and I think any of these options would really work well with them. I went down this path long ago after buying some JTR T-12's and immediately realizing the surrounds basically could have not been plugged in after they got installed. The higher efficiency dynamic designs like we are talking about here will make ALL the difference.