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Dayton Audio DCS380-4 15" Classic Subwoofer 4 Ohm
2 of these will be for ht use. I have a recessed area 48 inches off the floor for a projection TV that was there, planning to seal the 15 s in there ported seeming how I have the space for it. Good tuning frequency also?
If you can get away with that volume, a single 6" diameter port that is 4" long will tune the box to 17 Hz. Keep an eye on woofer excursion at higher volume levels, they will run out of gas pretty quick in that volume.
Date published: 2014-05-02
Good size box for 2 of these together?ported
The recommended ported box for a pair of these will be about 26 cubic feet. They will work in a smaller box, but knowing the application will help determine which would be best.
Date published: 2014-05-02
Hi guys, I have a Velodyne CT150 I picked up for $100. Given it's age I want to replace the woofer. Any ideas if this would work?
If there is nothing wrong with the woofer I would not recommend replacing it. the best option for a replacement in that enclosure would actually be the RSS390HO-4. If you were willing to seal up the port the DCS380-4 will work, but I would not recommend leaving it ported.
Date published: 2014-03-15
Recommended AMP? Sorry if it might be a bad question, but only because I don't know... Do I need all 250 of those watts? or can I get away with something a little less spendy.. All answers appreciated
The recommended amp for this woofer is the Dayton SPA250. At minimum I would recommend the Yung SD200.
Date published: 2014-03-05
Excessive Sag for Down-fire?
I have run the numbers for the sag calculation on this sub and it comes up to 5.64%. This is .64% over the recommended 5%. Is this going to be excessive? It is in a 1.8 cu ft sealed box. Can the floor clearance (carpeted floor) be adjusted to compensate? I want to make it down-firing to make it fit the living room decor and keep everyone happy!
I would not be worried about 5.64% and would not hesitate to down fire this woofer. The distance to the floor makes no difference in this case, I would recommend 3-4" minimum.
Date published: 2013-07-18
Thanks mtg90 for the quick reply and helpful response. I have a few more questions before I begin drilling. I used a calculator for port tuning and it said my port for my enclosure (8.26cu ft) and this driver should be at least 6 in diameter. Mtg90 you say that those 2 3" ports would work well, because theyre not at least 6" like that calculator says, will these smaller diameter ports not sound / work well in my enclosure with this driver? What would be the difference in performance? Also please tell me wht will be the difference in performance between my box tuned to 18 or tuned to 31. Thank you for all the help! Mtg90 you seem like you know a lot about this driver with experience in an enclosure my size is there any way I could talk with you on the phone or another way to find the best option for me? Thank you so much!
You could use a single 6" port but I think the dual 4" or dual 3" will work just as well. Those 3" ports have really nice big flares on them and two of them will handle the 15" just fine.Your want your box tuned between 18-22hz, if you move up to a 30hz tuning you'll end up with a large peak at 38hz and it will sound very boomy.I don't think parts express would like me posting my phone number or email as I don't work for them. Your best bet is to start a thread on one of the many forums dedicated to DIY speaker builders like Tech Talk. You should be able to get all the answers you need to finish your enclsoure there.
Date published: 2012-10-28