Mega subwoofer picture
On Sun, 18 Jul 2004 13:47:43 +0100, "Tim S Kemp"
wrote:
Arny Krueger wrote:
I don't think you understand how mediocre this Fostex woofer is.
2.3 mm travel with a ca. 30" cone moves as much air as 9.2 mm with a
15" cone.
The Adire Tempest has 16 mm Xmax. It moves almost twice as much air.
And, if you want a ca. 15" driver with SERIOUS Xnax, check out the JL
Audio 13W7 with 32 mm Xmax.
Aren't JL designed for in-car booom booom usage?
Yes, but Qts is Qts. Get it below 0.7, and you don't get boom (well,
not from the speaker anyway.......).
As it is designed for use in sealed boxes, the Xmax is less relevant.
Excuse me? Xmax and radiating area are the *only* things that matter,
whether sealed box, reflex or 'infinite baffle' is irrelevant.
Also
its main application is for sub bass in control room monitors, if you want a
big driver with a big xmax also then the PD2450 fits the bill. 24 inch, Xmax
is not quoted, but gap depth is 15mm and coil is wound to 30mm so I guess
we're looking at a reasonable number for such a big cone!
Nope, it's pathetic compared with the JL or Tempest. What counts is
*volume* displacement, and drivers like the Stryke 15 are king here,
with 5 litres plus.
--
Stewart Pinkerton | Music is Art - Audio is Engineering
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