I currently am in possession of some Celestion CDX1-1745 and some B52 Waveguides similar to the QSC that is well recieved. As I've seen and read, this is a similar driver to the DE250 used in many projects and am looking to find a woofer that can play up to 1200-1500hz.
The Econowave projects are well documented and abundant but wondered about the Beyma 12BR70 and whether anyone has any experience with them recently. They seem to spec well and like the sound of sealed bass woofers (size isn't an issue). Low Le, FS and a good amount of Xmax. They would still be a bit cheaper for 4 than a pair of some larger pro 15" woofers like Faital 15PR400 etc.
I've wondered if going 0.5 way with the second woofer would be viable, eliminating the need for as much BSC... but at this point am just spitballing and have subs if needed. Any ideas or suggestions are welcome.
The Econowave projects are well documented and abundant but wondered about the Beyma 12BR70 and whether anyone has any experience with them recently. They seem to spec well and like the sound of sealed bass woofers (size isn't an issue). Low Le, FS and a good amount of Xmax. They would still be a bit cheaper for 4 than a pair of some larger pro 15" woofers like Faital 15PR400 etc.
I've wondered if going 0.5 way with the second woofer would be viable, eliminating the need for as much BSC... but at this point am just spitballing and have subs if needed. Any ideas or suggestions are welcome.
Glad to see the Beyma's get some love 🙂
I think the Beyma 12BR70 is a great woofer, I used them in a T-TQWT.
Pending on your surrounding setup, I'd recommend the 12BR70's for closed boxes or IB unless you have specific plans with detailed filter sims for any vented type of enclosure.
The idea of a .5 way seems to me to be the best approach, not so much issues with interference from the other woofer at higher frequencies.
After messing about with all sorts of topologies I'm a sucker for offset 2nd order Bessel as described in Rane's note 147.
A Bessel Filter Crossover, and Its Relation to Others
It just works really well.
I think the Beyma 12BR70 is a great woofer, I used them in a T-TQWT.
Pending on your surrounding setup, I'd recommend the 12BR70's for closed boxes or IB unless you have specific plans with detailed filter sims for any vented type of enclosure.
The idea of a .5 way seems to me to be the best approach, not so much issues with interference from the other woofer at higher frequencies.
After messing about with all sorts of topologies I'm a sucker for offset 2nd order Bessel as described in Rane's note 147.
A Bessel Filter Crossover, and Its Relation to Others
It just works really well.