"David Looser" wrote in message
...
wrote in message
...
In any speaker, when you put the volume up high, there is more
electric buzzing.

1) What is this buzzing called?

If it's a "buzzing" sound, it's usually called "buzz". If it's more of
a "humming" sound then it's called "hum".

2) What specifications in a speaker reduce the amount of buzzing as
volume is turned up? e.g. low/high impedance, sensitivity, etc.

None at all, because it's not caused by the speaker. It's caused by
pick-up of mains-borne interference earlier in the system, ie. the
amplifier, it's wiring, or the source components, CD player, tuner
etc.

David.






.... or more often than not poor design and/or cost cutting/inadequacy in
the power supplies. Much of it is due to poor mechanical layout within
the amp case.

I had a power MOSFET amp that I built myself - actually as dual mono -
with fully regulated power supplies capable of 110Wpc into transmission
line loudspeakers that could rattle windows with ease so good was their
low frequency response. Put you ear right up to the speaker and all you
could hear was a little hiss but no hum.


--
Woody

harrogate three at ntlworld dot com