Biased N-4412 Network

[rek50]

Has anyone done this (Biased N-4412)? I was "Studying" in the library:
http://www.lansingheritage.org/html/.../1986-4400.htm
Page three (Dividing Networks) "...employs detailed conjugate circuits..."
I then looked at: http://www.jblproservice.com/pdf/Stu...ies/4412LR.pdf
I "Thought" a conjugate was a cap and resistor, in series. Where are the "conjugate circuits" ?
I'd like to explore the "Biased Network" sound after reading many threads about their improvement to a "Price Point" network.
Should all the caps "40, 17, 14, 3 uF" be doubled? If using Solens, should they be Bypassed (.01 uF AC-T) as well?

[Ian Mackenzie]

Hi,

They do not always use R/C conjurates although there is a resister / shunted on the woofer.

I note the capacitors are bypassed.

Why don't you try charge - coupling tweeter for starters and see what happens. Always double the exisiting value for charge - coupling

[rek50]

Hi, Yes I see the capacitors are bypassed on the N-4412 Network. I wanted to make a "Charge-Coupled" version of this network, and wanted to know if the "Charge Coupled" capacitors should be bypassed. Also, Should all the caps "40, 17, 14, 3 uF" be "Charge Coupled"? Yes, I could try charge - coupling the tweeter for starters and see what happens. In short, after reading the numerous posts on/about Biased/Charge-Coupled Networks, I'm SOLD on the concept, Sound Unheard (Sight Unseen). I wanted to go "Full Bore" and build new Charge Coupled networks and place the "Original Networks" unaltered, in one of many boxes strewn about the place, for "Safe Keeping/Future Use" HA. Thanks...

[4313B]

Order all your parts from Solen and try them. I'm currently building six pairs of biased Solen networks using all Solen components. I do use the Erse coils for large values such as the 18 mH coil in the 4435. Otherwise I simply use the Solen Perfect Lay coils.

[Ian Mackenzie]

Six pairs!

So your the guy who eats up all the Solen stock!