I've started this thread to talk about the center channel. In the previous post I said I'm going to shoot for a TMMMM design using the 5" 8 ohm Dayton Reference driver in a 2x2 parallel / series arrangement. According to Unibox I should get an F3 of just under 60 Hz and a max SPL of 112dB.
The enclosure will be a short floorstander with the tweeter just below the bottom of my screen (why I went TMMMM). To improve dispersion I'm going to make the baffle as narrow as possible (may need a BSC circuit). The internal volume I'm shooting for is a scant 0.7 cubic feet so this will likely have lots of bracing to eat up space. This will also make placing the port interesting - I may try for a slot ported design.
I'm going to shoot for a crossover between 2000 and 2500hz. I really can't say which until I've tested the woofers some. Unlike most of my designs (where I try to get my x-over as low as possible) for these I'm going to see how high I can get away with to make finding a suitable tweeter easier.
Questions I have at this point;
1. Does anyone here have experience with this driver? Are there any things I need to be aware of?
I have read it is best not to cross it over 2.5kHz.
2. Any advice on tweeters? I'm looking for something small, in the 90dB efficiency range with reasonably flat response and good off-axis response. Possible candidates so far are the BG Neo3 PDR and the
Dayton ND28F. I have no experience with the latter but have used its smaller brother the ND16 with good results.