Originally Posted by Droogne
The guys who would sell me the Dayton woofers told me that as I'm not looking for incredibly high output levels (100-110db is ok) I could easily use the other one he suggested. A 15hz F3
. ... buuuut I'm more than happy to wait a few months for the better suited Ultimax. (EDIT: I think I also found a shop that has them still in store!)
What little do you know about passive radiators? What I read, and what those guys told me, is that it would allow a lot lower F3 because it is ported in a way. Pros against ported is that there is a lot less port noise. Cons: it is more expensive (240 euro to be precise).
The main reason I do not think the PR
is good here is the RSS460 driver doesn't have enough Xmax for higher output(you need to move a lot of air) like the UM18 can give you at 10-15hz and below. Even to hit 100dB at 10hz is no small feat and the RSS460 is not the driver that would be my first choice when for a little more money I could get the UM18 that has more Xmax and has around 3dB more output down low.
has both sealed and ported so he can tell you how they compare for NF use. As far as I know, he is not using his ported 18" or 15" NF he uses his sealed for his NF subs. Maybe he has another reason for not using the ported NF.
And it depends on what you want. If you are ok with just getting "feel" from the NF subs into the teens that ok. I like the fact I can feel the sealed NF into the single digits. Like I mention I have a Crowson and I haven't used it in months because the sealed 18" NF gives me enough that I don't really miss the Crowson. It is nice to have the Crowson because it does add to the experience but a sealed sub NF can be really impressive all by itself. Granted there is not a lot of content at 10hz or below but it is nice to be able to feel it if it is there.
HTPC, Sony 40es, 120" Silver Ticket, 7702mkii, Sunfire Amp 225w, JBL 590, JBL 520
PSA XS30, Seaton Submersive, 2 Um-18 8cf sealed, Outlaw Ultra x 12, Kappa Pro 18LF, BFM Tuba 60 horn, B&C 18TBW100 6cf 41hz, 34hz, 28hz tune
iNuke 3000 & 6000 DSP's, Crowson Motion Actuator
Last edited by bscool; 10-23-2017 at 04:54 PM.