8 Jan
2012
8 Jan
'12
11:17 a.m.
On Sun, Jan 08, 2012 at 04:04:38AM +0000, gnome(a)hawaii.rr.com wrote:
My understanding is that you actually only need .1
watt RMS for a sound to be audible ... but could be wrong on that.
Much less. If you have a 100% efficient speaker radiating equally
in all directions then 1 watt will produce an SPL of 109 dB at 1
meter distance.
Most speakers have very low efficiency. Assume 1%, that still means
89 dB at 1 meter.
Ciao,
--
FA
Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl.