"Phil" <phil_lee@[EMAIL PROTECTED]
> wrote in message
news:481912a7$0$7052$4c368faf@[EMAIL PROTECTED]
> Would I be able to get low 40-90Hz sounds from a 6.5" sealed sub in a
car? I'm looking to
> use my factory sub with a different amp with an adjustable crossover to
turn the
> resonating frequency down from the 160-250Hz range to the 50-90 range.
I'm looking for
> decent-quality sound without being "boomy." Has anyone seen this done
easily, or am I
> looking for too much out of a 6.5" sub? Would I need to go to 8, 10, 12
inches? I'm not
> really willing to sacrifice trunk space for this project; I'd only
retrofit an existing
> setup to the current spot where the stock speaker is.
>
> Phil
Phil,
It's quite possible, but only because it's in a sealed small space. If
it's a big SUV, then
less likely. Drive that car off a cliff. Response at a reasonable power
level is likely
possible to 40 Hz. Wouldn't happen much in a living room with one such
speaker. I've seen
it done in a car, but with two such woofers -- damn thing actually was
pretty flat to 20 Hz,
and not all that low in volume either. It could deliver down to 40 Hz
really loudly. I had
trouble believing it. With one, I'd guess it'd need to be a pretty decent
woofer (good
xmax), though.
Not sure what you mean by turning the crossover to 50-90. The crossover
limits the upper
frequency to which the woofer operates, and you must ensure that it gets
up to where the
regular speakers are good. Many car speakers, especially door speakers,
are pretty weak in
the 100-200 range. Changing the crossover freq doesn't affect the lower
limit.
--
Regards from Virginia Beach,
Earl
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