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Old 14th April 2008, 04:23 AM   #1
eStatic is offline eStatic  United States
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Default 'nother replacement project

I've got some 2.2 cubic foot sealed boxes that need new woofers.
The Alpine SWR-1522D or SWR-1542D would fit exactly in the old cutouts and recesses and the TS parameters look very good. I want to run them in the 110Hz to 35Hz band. The question is are these any good for serious music? No THD specs are given and I can find no serious reviews. Other drivers would be OK but these are already pushing my budget at $200 street price 'cause I need 4 of them.

thanks
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Old 14th April 2008, 03:37 PM   #2
bjorno is offline bjorno  Sweden
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Quote:
…The question is are these any good for serious music?…
Hi, I never heard the drivers but they should be able to produce a lot of noise:

http://www.youtube.com/watch?v=txpU4pCoGUw

Quote:
… I want to run them in the 110Hz to 35Hz band …
A closed box of 50.3 L (Qtc = 0.707) yields a flat FR down to 38 Hz. Here is a simulation with the SWR-1522D that with a mild LT can reach 35 Hz or lower.

b

1(2)
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File Type: gif alpine-swr-1522d.gif (45.6 KB, 66 views)
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Old 14th April 2008, 03:42 PM   #3
bjorno is offline bjorno  Sweden
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2(2)
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Old 14th April 2008, 04:09 PM   #4
eStatic is offline eStatic  United States
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Quote:
Originally posted by bjorno


Hi, I never heard the drivers but they should be able to produce a lot of noise:
Thanks (I think LOL). But noise is not what I want. They wont be driven anywhere near their limits. In general I've found that's the best way to keep THD low in speakers assuming they are any good in the first place.

Edit:

I've attached an image of how these woofers are used.
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File Type: jpg bass control.jpg (63.9 KB, 59 views)
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Old 15th April 2008, 11:26 AM   #5
Thawach is offline Thawach  Thailand
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hi little pig


2.2 cuf is suitable for swr 1542d. QTS about 0.7 f3 is about 36.14.
it can go with music./
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Old 15th April 2008, 01:10 PM   #6
eStatic is offline eStatic  United States
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Thanks.

And little Boog says say, "Hi and please don't eat that other white meat--it might be my sister."
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