Perhaps this may also enhance the "floor shaking
effect" for home theatre subs.
My first sub was down-firing. It was cheap and
didn't have a lot of output, but it was easy to
control.
My current sub is front-firing but down-ported,
which is a bit unusual. It has much, much greater
output but is a bit harder to control to eliminate
boominess.
Pat Farrell wrote:
> Skunk wrote:
>
>> Why do people design subs with the driver pointed
down? Wouldn't it
>> make them slower to return from driver excursions,
again I suppose it
>> doesn't matter if you're reproducing explosions
mostly. I'm not saying
>> you think it's the ideal situation Pat, I just
noticed you brought it
>> up.
>
> I really don't know, I just buy them, not design
them.
> But the cone material is very light. Light and stiff
is
> the goal. Nearly all the weight in any driver is the
> big honking magnet. And with any signal, the electro
magnet
> is pulling the voice coil (and cone with it) up.
> I would expect (again pure speculation) that the
> impact of gravity is pretty modest.
>
> Several vendors talk about 'servo control' which
> I take to mean some formal feedback control that
> applies corrective power to the voicecoil to make it
> have better control.
>
> I think they point down because that keeps the
> driver away from little kids and dogs pushing on it.
>
>
>
>
>
--
___________________________________
Mark Lanctot
___________________________________
__________________________________________________________
Find your next car at http://autos.yahoo.ca
_______________________________________________
audiophiles mailing list
[email protected]
http://lists.slimdevices.com/lists/listinfo/audiophiles
