Quick & Dirty 4430-Inspired Two-Ways Part I

[Zilch]

3110A voltage drive simulation courtesy of David Smith. 08-FEB-2005

Way COOL! Ontogeny recapitulates phylogeny here, apparently.

Yup, I have the 4430/35 sims. How about N200B? Izzat available anywhere?

[Zilch]

Oh! Yeah! You guys have alot of those LE85/2420/2421B/2425J drivers laying about that need using?

Yeah, a primary objective is to convert L200 and/or L200B into "Quasi" 4430, which means work with the LE85's that come with.

We have some 4430 crossovers, but perceive it'd be cheating (and somewhat inelegant) to just rip everything out and put in stock 4430 replacements. And buying or building N3134 xovers is not a viable option for most folks. 2344A horns may not be, either.

The other primary objective is to "sweeten" 4430 with newer driver and horn technologies, if possible. In the course of trying that, we may come up with some even more feasible options for L200/B.

[4313B]

How about N200B? Izzat available anywhere?

Only with the L-Pad wide open. Measure a 16 ohm L-Pad set at 50% for me. I don't have any laying around right now. 1 to 2 and 2 to 3. Measure a couple of them.

[Zilch]

Gotta unsolder here. Hang on....

L-Pad #1: 1-2 = 16.7, 2-3 = 8.1

L-Pad #2: 1-2 = 16.4, 2-3 = 8.0

Hmmmm. -6 dB nominal, looks like.

These are 50W Parts Express ones.

You want the 30W ones in the actual crossovers?

[Wonders whether different "ranges" are available to OEMs, or just one standard throughout....]

Not the same. In the crossover itself:

L-Pad #3: 1-2 = 33.4, 2-3 = 6.2

L-Pad #4: 1-2 = 34.0, 2-3 = 6.0

~-4 dB nominal, maybe.

Old school assemblers wrapped them wires through the eyelets.

[4313B]

Yep, gotta be out of the circuit.

Thanks!