install printer drivers

"J. P. Gilliver (John)" <G6JPG.RemoveThis@soft255.demon.co.uk> wrote in
news:S6+tcnRWvb6IFwaO@soft255.demon.co.uk:

<SNIP>

> In this context, I meant it is driven in a binary fashion -
> one end of the speaker is connected to ground (or 5 V), and
> the electronics either connects the other end to ditto or
> doesn't - so current through the speaker is either on or
> off, which limits it (except with very clever programming)
> to clicks and beeps.

Ah. That makes sense.

> The drive to a speaker from the sound
> card is more analogue, i. e. current through it is from a
> variable voltage source. (These days often one with limited
> power output also, in the expectation that the speakers
> will contain their own amplifier; early sound cards often
> had about 2 watts of drive and could thus work with
> unpowered speakers.)

Yes, I noticed that my 11 years old AWE32 sound card has plenty
of power to drive a pair of 50RMS speakers, while the
considerably newer Audigy I put in the EVO has no amplifier chip
at all.


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