On Wed, 16 May 2001, ming wrote:
> It's not insane to imagine a world where RCA cables disappear and firewire
> to your speakers is the norm. Of course, hard-core tweakers can go in
> there and find the digital-analog converter and capture from there. But
> for those of us without an electrical engineering degree -- I'll buy the
> box that you make and sell...
Actually, it's possible to make digital speakers, at least there is no
'analog' section per se.
For example,
Sample your signal to 8-bits. Signal process it. Send it to a R-2R ladder
of SCR's (or transistors with the appropriate IsubC) in parallel
("Wired-OR" to be a pedant, thus each provides some power of 2 the total
possible current). You can also do this with TTL Open Collector (or
similar) outputs (the Totem Pole ones won't work).
[ And on the off chance the idea ain't copyrighted/patented, it's
public domain ]
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