I'm planning a subwoofer build to complement my existing speaker setup and could do with some advice. I've built a set of speakers before but not from my own design. The main priority for this build is high WAF, but as the secondary priority I would like it to have as deep and flat a response as possible, crossing over to my main speakers somewhere between 80-120Hz. High SPL is not hugely important to me: it's for use at home and I don't hate my neighbours! I just want to be able to hear the bass that my existing speakers don't reproduce.
One possibility that occurred is to build a large but low profile sub that could live behind an existing large bookcase. Alternatively I could probably get away with a cuboidal enclosure around 45cm across. Built from 18mm ply I make that an internal volume of 2.6 cu ft - but how to get the greatest low-end extension out of that volume?
All suggestions gratefully received!
One possibility that occurred is to build a large but low profile sub that could live behind an existing large bookcase. Alternatively I could probably get away with a cuboidal enclosure around 45cm across. Built from 18mm ply I make that an internal volume of 2.6 cu ft - but how to get the greatest low-end extension out of that volume?
All suggestions gratefully received!
You need to tell us what LF target you are trying to hit. With 2.6 cu. ft. I would do vented with Peerlees XXLS drivers back to back in force cancellation. Then run it mono. No higher then 70-80 Hz on the low-pass.
That setup will do the job for any music program or movies.
Cheers,
Greg
That setup will do the job for any music program or movies.
Cheers,
Greg
I know with my space constraints I'm not going to get down to the teens: the music I feel I'm missing out most on the low end is organ music, so it would be good to get down as low as I can hear with just a hint of infrasound, I guess (hope?) maybe mid 20s is what I'd like to achieve. At least it would be good to know whether anything like that is achievable with my size constraints (I could maybe push the size a bit) or whether I need to completely rethink and go for something bigger but more aesthetically pleasing, maybe a sonotube painted to match the room decor might be more acceptable even if it's bigger.
An idea - one of these in an Extended Bass Shelf alignment, tuned to 22 Hz, with a box sized to bring F3 at 30 Hz and F9 at 20 Hz. Room gain should flatten the response a little, and the other speaker parameters that are listed suggest that you should be able to do this with a box somewhere between 2~3 cu.ft. in size.
Peerless 830500 12" XLS Subwoofer 4 Ohm
Peerless 830500 12" XLS Subwoofer 4 Ohm
Thanks for the suggestions. I haven't had much time to progress this since posting but hopefully this weekend I'll have a chance to play with winisd and try out some enclosure modelling.
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