[sdiy] semi ot: loud speaker for synths

[Harry Bissell Jr]

Y'all got your flamesuits on ? :^P

Like the movie "Godzilla"... bigger IS better.

One good 18" can outrun almost any of the so-called
powered subs.

Making a system with "bandpass" boxes in a mistake
IMHO... good for earthquake rumble and hip-hop
annoyance
of pedestrians and other motorists... but not for
HiFi.

The 18" does not require special (active) EQ and servo
amps etc...  They are extrememly efficient by
comparison.

OK now that I've whacked Peter (hmmm that sounds
different than I meant it.... ;^)

lets discuss why the modern "small" subwoofer might be
better.

1) It fits in your studio
2) You CAN spare the extra power
3) you have no problem with the active crossovers
4) did I mention its small ???

These are good things, which you pay for in loss of
efficiency, and ultimately in overall SPL.  NOT a
studio
problem.

I was assuming that the use (since we were talking
about like 4 x 12" speakers) would be for live sound
reinforcement... in which case the bigger box is going
to win every time.

In my studio I'm using JBL4410 and I agree that there
is plenty of bass from a 10" driver and you don't need
bigger than that. But if I tried them live... Id turn
those 10" cones into confetti in no time. There is a
limit to the excursion possible in a 10" speaker.

Given a choice... I'll take the 18" for live (and YOU
get to be my roadie).  For home, I don't feel the need
for subwoofer at all.  I like a good full range system
better than one sub in the corner...

...your mileage may vary :^P

H^) harry



--- Peter Grenader <peter at buzzclick-music.com> wrote:
> Czech, listen, I have Bob Diamond's email address
> (founder of Diamond Audio.
> later with M&K, now with Cervin Vega). He can tell
> you the optimum cabinet
> design if you want to do it yourself.  Contact me
> off list for that address.
> 
> in regard to this:
> 
> john mahoney wrote:
> 
> > my point is that good low end does not require 18"
> drivers.
> 
> Absolutely correct -18's are total overkill.  I
> think you've guys have seen
> that I worked at M&K for three or so years.  Now
> remember - they invented
> the dedicated powered sub (1973), so I assume they
> know something about how
> they work.
> 
> They don't make anything larger than dual 12s, and
> the second one is in
> push-pull formation - meaning you don't hear it,
> it's mounted FACING INTO
> THE CABINET and is purposely out of phase with the
> other (this serves to
> push and pull the audible driver from the inside.  A
> more efficient method
> of what a port attempts to do).
> 
> You should be fine with 12s, even 10s if the amp
> isn't one of those $26
> dollar Sanyo jobs that Genelec uses for their low
> end subs.  Those things
> suck.
> 
> 
> 
> Peter
>