I know you aren't interested in this kind of stuff...

[Nelson Pass]

You can download an advance copy of

http://www.passlabs.com/np/CurrentSo...erNetworks.pdf

bon apetite

[Peleus]

Mr. Pass,

I am interested with your idea, but I am a newbie of crossover and electrics design. After reading your article, I got stuck by making a current source! May I have you suggesting some schematics of current source to fit this crossover design?

Thanks!

[GRollins]

For starters, consider the Son of Zen. There's a writeup available at www.passdiy.com

Grey

[Brett]

Hola Nelson. Thanks again.

Originally posted by Peleus
May I have you suggesting some schematics of current source to fit this crossover design?

The last line of the xover article says "Far that matter, we shall soon see that constructing a current source amplifier is not more difficult than a voltage source"

I sense another article soon.

[Geenius]

Correct me if I'm wrong but aren't "current source crossovers" a.k.a. the good old "series crossovers"?

[Nelson Pass]

Originally posted by Geenius
Correct me if I'm wrong but aren't "current source crossovers" a.k.a. the good old "series crossovers"?

Yes and no. I didn't point this out in the article, but I'll revise it
later today, that the crossover examples I cited give a constant
impedance (or nearly so) to the driving source. This also
corresponds to the case where you can use the network equally
well with a voltage source, since the current through the system
remains constant over the spectrum.

This is a subset of the more general case, where the overall
impedance of the network system is not a constant. In this more
general case driving the network with a current source yields
independence between the individual filters, just as an ordinary
parallel set of networks does with a voltage source.

[Geenius]

Thanks for the explanation. I will follow your article with great interest.

[Variac]

Well, I'm interested, because it answers all kinds of questions
that I had about adapting my speakers to current source operation- Thanks Pass Man