On Tue, 2006-09-26 at 14:18 -0500, PicDude wrote:
> On Sunday 24 September 2006 13:56, Dave Lag wrote:
> > Starts to have some similarities to big car amps I suspect. Maybe
> > another place to look.
> 
> Not familiar with how much voltage and current car amps put out, but I always 
> thought the voltage was relatively low, but the current was much higher.

Depends on the amp. The cheapest amps basically put out 12Vp-p. Slightly
more expensive ones put out 24p-p (they use an "analog" h-bridge).
Beyond that you have to start stepping up the voltage to get more
volume.

This is the reason "car" speakers often are much lower in impedance then
"home" speakers, it's harder to boost the voltage above 12V then it is
to build a lower impedance speaker.

TTYL

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