[net.audio] BSC Speaker Query + Frying speakers

did@ucla-cs.UUCP (02/05/85)

Does anybody out there own a Bennett Sound Corporation (BSC) Compusound
100 speaker system (~$2000 speakers+subwoofers)?  I went to audition a
pair, brought my 1812 Overture CD, played it at > concert volume, and
blew one of the subwoofer drivers at the fourth or fifth cannon shot.

My main question is:

	Is this reasonable behaviour from a high-end speaker system in
	general?

What are your experiences with speaker blowouts?

I'll bet you're saying "Gee, this guy's a jerk for playing THAT so loud",
but the salesman assured me that the speakers could handle it....

Enlightenment greatly appreciated, Dave
Arpa: did@UCLA-LOCUS.ARPA
Uucp: {ucbvax || ihnp4 || randvax || sdcrdcf || trwspp || ism780} !ucla-cs!did

gps@ariel.UUCP (GLENN SCHWARTZ) (02/21/85)

A speakers power handling capability is directly related to its
efficiency, or in this case, the overall efficiency of the
systems parts (i.e. drivers, crossover, cabinet, acoustic damping, etc.).
When buying , make sure that the amplifier has sufficient power to
drive the system. If there is insufficient power the amplifier
will "clip" the top of the signals sinewave causing distortion.
It is this distortion that will damage the speakers voice coil
and "blow" it, much like the filament in a lightbulb. Sufficient
power will help to prevent this condition, so make sure that the
components are better matched (speakers and amp) . The salesman
may also have over driven the system with clean (undistorted)
power and in either case I would suggest that you shop elsewhere
or become more educated. When checking around for speakers of
this quality look for good imaging. In other words, if you can tell
where the music is coming from (the speaker box) then you are
not benefitting from speakers of this quality.