Thread: JR 149s
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[email protected] dpierce.cartchunk.org@gmail.com is offline
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Default JR 149s

On Thursday, June 6, 2019 at 5:52:21 PM UTC-4, Howard Stone wrote:
Do you think it would help to stack two pairs of them?
=20
They are cute, cheap, have a sweet midrange, easily sellable.
So I=E2=80=99m exploring even the most off the wall options!


No. Many of the advantages they have are due to their physically
small size and, except right around the crossover point, their
small size acoustically. Stacking a pair of them will make the
vertical dispersion worse, will make the overall frequency and=20
power response worse, will make the size of the vertical "sweet=20
spot" much smaller (this would manifest itself in making for
audible variations in the response as you move your head up and=20
down: listen to broadband noise as you move your head around and
you'd see what this means).

They're very good for their intended use and, like most things that
are very good for their intended use, they're not so good doing things
they weren't intended for.

The whole "stacked pair" thingy was a craze started in the '70's,
and, when done properly with things like Quad 57's, the results
could be very impressive (though MOST implementation of stacked
Quads did NOT do it properly). On the other hand, another popular=20
combination was stacked Advents, which were 'okay" speakers but=20
because of a. their physically large size, b. driver placement=20
on the baffles that prevented getting drivers close together
and c. very minimal crossover slops that ensured the drivers
overlapped across a very broad band, more than they should have=20
to begin with, the results were demonstrably less than 'okay'.