- Alesis Amplifier Modules
-
Apexjr still has a bundle of these amplifiers, which have
LM2876/LM3886 power amp chips plus a lot of active filters that can be
used for various types of crossovers. Normally, I'd prefer to
put together my own filter circuits, but the $5 price and the 8-pole
Linkwitz-Riley crossover circuitry makes these
modules a great buy that's hard to pass up.
- Do-it-yourself Heil drivers
-
You'd think I'd have given up after 30 years of building these
tweeters, but I still think there is some unexplored potential in this
design.
- Speakers
-
I've done some.
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