i used 18mm for the sides because i had half a sheet lying around, which was just enough for those, and i got all the rest cut from one sheet of 15mm mdf. the plan does say 15mm.. but from having built these, i'd say definitely make the bottom piece from 18mm.. it's quite a big unbraced piece.
Looking forward to reading about how you think these sound, looking at them as a single I wonder if they could be adapted to take a single 15" as the single 12 in comparison to the HF horn asthetically looks out of proportion. Please do not take that as a put down, I am only a complete and utter novice when it comes to speaker building lol. I would have no idea how to re evaluate all the mods needed for this cabinet to be designed around a 15 but in doing so would this even be possible?
do we have anything new on this topic? anyone built and tested? only asking as I may build a pair of these to sit on top of a cubo 15 with an es-15 on the cubo and this design should get the hf up high enough
Gonna build one of these next week as a single but with slight adjustment to height for hf panel, I am going to make it smaller in height and fit a different horn to the one shown in pics here, also I am going to test it with the p-audio 200 watt 12" driver and a 1" p-audio cd , may build 4 of these to finish off my small rig