Neodymium drivers in Scoops

Father-Francis: True. I still want to go ba(ll)ss deep, so it seems I´m staying with 21". I don´t need to go any louder. The 21 is overkill in the upper range for me, but not at 25-30Hz, soooo I might stay.

I wonder if DS versions will handle the same power as 18SW115, because the coil is Al now, not copper. I´d say it wont, but in specs, B&C says YES :-)

Teunos: It´s true that the displacement volume is the same, as with ordinary 18" as 18TBX100 or 18NW100 is. So down there under 50Hz, 21" has great chance to do the same. In the 60+Hz range, two 18"s will have the upper hand, but I don´t need it really.

I must also support the efficiency discussion. More motor force and displacement volume wins. Sensitivity comparisons are useless in HR.

I done a box with pd 2151/2150 , 2*1850 are louder but don't go as low
So the whole thing comes to you looking to play 35-7hz
6db higher or deeper on your subs . Every time you take 4boxes I take only 2 . Even if you tak 2*18 , I'll take 1*21 for each box you take.

I have it here but takes a bit to test it proper. I just cut a scoop, build it and need venue to test. I have the the same price as sw115

Edit: I have just seen some more advantage on DS18 vs. 9601: Top Plate is 15% thicker, means a better cooling of the coil, less PC, and in theory, a larger coil does not significantly raise the powerhandling if we compare a 4,5" vs 5,33" coil with SAME top plate thickness . My guess is, that both drivers can nearly handle the same power BUT needs to be tested.


Edited by turbo7 - 06 June 2017 at 4:04pm

Let us know how it does.

MarjanM wrote: JR.junior wrote: MarjanM wrote: Stronger the motor, bigger that deep at 50-60hz becomes. yes, so you have to reduce throat size, it's smoots out. Yes, by killing few dbs on the low end.

otherwise you're killing the driver.


Edited by JR.junior - 01 June 2017 at 7:18pm

haha !