You might be right about the driver fitting. In trying to do a quick model, I only thought about the 6.61" driver mounting depth and not the total driver height. In a 4 segment TH, S3 probably needs to be 16" x 6" and S5 needs to be 16" x 8" to fit the whole driver height. Let me play with the model.
Well, that's one way of doing things. Although it is nasty, it gets temptingly close. I could argue for and against, but it would yield no good outcomes. The question is how to motivate oneself to try that, and do all the measurements of power compression and such.
That's basically two dB gain in SPL, but I don't know how would it fare power compression wise. Can you share power input plot too?
Also, I am now excursion limited by the baseline speaker. Once we put the same power but Xmax 19mm+ one (existing) in my design, it might even out, while sitting in the 10% smaller box.
"These are hard battles" for the one last dB in a simulation. It needs so much work to get to know the truth, aaahhh.
That's basically two dB gain in SPL, but I don't know how would it fare power compression wise. Can you share power input plot too?
Also, I am now excursion limited by the baseline speaker. Once we put the same power but Xmax 19mm+ one (existing) in my design, it might even out, while sitting in the 10% smaller box.
"These are hard battles" for the one last dB in a simulation. It needs so much work to get to know the truth, aaahhh.
SAN184.51. Same power input, 5/10% weaker motor depending on how you classify it, and 19,5mm of Xmax. That would almost solve my design problem, but I decided to wait with something else that might pop up. Not sure what.
https://en.toutlehautparleur.com/media/catalog/product/datasheet/lavoce/SAN184.51-2.pdf
@BP1Fanatic
Yes, that´s where the design would fail my needs and scope. but not in the bassreflex one. In heavy duty use giving it nearly 4kW in bass and 2kW in high range of the bass would make that speaker smoke in under two minutes. I think it is toe to toe. I would be inclined to test another design, but it stacks up. Bigger box volume, unfavourable impedance, magnet out for audible noises, magnet blocked by front wall, speaker mounting, front wall durability issues. That´s quite too much.
Yeah, that wouldn´t fly. 🙂
All kinds of compressions through the roof, speaker almost instant toast. It was meant as an aid for my design limitations solution. For TH, it will probably do nothing. And it has weaker motor, so maybe 184.50IP would be better choice, I don´t know. But all these are hard to feed.
All kinds of compressions through the roof, speaker almost instant toast. It was meant as an aid for my design limitations solution. For TH, it will probably do nothing. And it has weaker motor, so maybe 184.50IP would be better choice, I don´t know. But all these are hard to feed.
What about an IPAL, if money is not a constraint ,or eminence 602? The one that cost 1,200 bucks
And now that your design is giving up on drivers I think is time for you to ask for a custom driver made to spec 4 your box, I know several manufacturers can spec one for you,that would be the CR18-911 OEM made
CR....crash PC
18....18"
911...sound emergency!!
And now that your design is giving up on drivers I think is time for you to ask for a custom driver made to spec 4 your box, I know several manufacturers can spec one for you,that would be the CR18-911 OEM made
CR....crash PC
18....18"
911...sound emergency!!
Money is somewhat a constraint, but not totally. IPAL is as guilty of low Xvar as any other driver. Would need full IPAL solution, and I am not going that way with proprietary (and loud) HW (meaning working noises).
The LaVoce SAN184.51 is much closer. Still feeding is somewhat difficult and it has weaker motor.
Birds are chirping on the trees that FaitalPro with its new 21XL3000 and 6.5" voice coil might have an 18" version with very similar motor/coil structure.
Well, at this moment I don't feel guilty to be giving up on drivers that don't show up for 14 months after release. That's a manufacturer making idiots from customers, and it is not possible to work that way.
Technology evolves. There is high chance that suitable driver appears on the market. Not all is lost. NSW6021 is not going to be compact anymore. And two high end 18"s will outdo about any 21". This ratio was planned to have more of everything. Motors, motor force, displacement volume, port area, input power. Force density on the cones.
If this works, 2-3dB better drivers just need to be replacing the old ones. Not a biggie.
I am not aware about these manufacturers that would make drivers for me. B&C claimed they'll do orders for 50+ drivers. 😂
The LaVoce SAN184.51 is much closer. Still feeding is somewhat difficult and it has weaker motor.
Birds are chirping on the trees that FaitalPro with its new 21XL3000 and 6.5" voice coil might have an 18" version with very similar motor/coil structure.
Well, at this moment I don't feel guilty to be giving up on drivers that don't show up for 14 months after release. That's a manufacturer making idiots from customers, and it is not possible to work that way.
Technology evolves. There is high chance that suitable driver appears on the market. Not all is lost. NSW6021 is not going to be compact anymore. And two high end 18"s will outdo about any 21". This ratio was planned to have more of everything. Motors, motor force, displacement volume, port area, input power. Force density on the cones.
If this works, 2-3dB better drivers just need to be replacing the old ones. Not a biggie.
I am not aware about these manufacturers that would make drivers for me. B&C claimed they'll do orders for 50+ drivers. 😂
If you find the driver you need, you will end with a box that will be around the size of a Ks118 but with 3 times the SPL correct ?
I mean 8 ..9 dB more SPL
I mean 8 ..9 dB more SPL
Not really. Or rather Back To Earth. Probably 3-4dB more output where it matters to me, and 3-4dB less where it "doesn't". The point is little more steady output and more linearized output (by 6-8dB in total), while conventional designs go for peak SPL at the cost of sustainability in time.
Not apples to apples, mine should be tad smaller and lighter.
Not apples to apples, mine should be tad smaller and lighter.
Somebody (JBL?) had ports top and bottom to allow a kind of convection flow. I do not recall seeing any data or hearing anecdotally about the effectiveness.
Crash, I am curious about something, if you don't mind. Seen you mention 2x boxes a few times vs regular 200L PA sub. Have you tried a sim with double volume shared space for 2x drivers in one box? The larger combined volume might make for a shorter port then can go in the single box and a taller box can be its own trolley