When you order the 1099 kit from diysg it comes with the drivers, seos, and a front baffle. When you order you can choose from two configurations, horizontal (for use as a center) or vertical. Both configurations have the CD in the middle chamber. I’ve seen guys do custom configurations like you’re mentioning with the 1299, but they’re having to build their own baffle. I haven’t seen many custom 1099 configurations, but if it works for the 1299 it should work for the 1099. If you search the 1299 builds you’ll find a few examples, I think I remember one from last week. When I get near a computer I’ll try to dig some up for you ...
SPEAKERS: 3 x DIYSG 1099's LCR; DIYSG HTM 6's and 8's surround; 4 x RSL C34E's atmos.
SUBS: 4 x UM18-22 Mini Marty's and 2 x 21DS114-4 Devastators
SIGNAL CHAIN: Denon X4400; Minidsp 2x4 HD; 2 x Jensen Iso Sub 2RX; 3 x NX6000d.