I couldn't help but notice the similarity between the L-150A crossover and the L-112. They are totally identical in all values. But JBL equipped many of the L-150A's and the L-112 crossovers with the wimpy iron core inductor for L1, which has a value of 2.5 Mh, the same as the beefier air coil supplied on my L-112 X-over. Giskard mentioned that the air coil is less likely to saturate (I'll assume this to mean it's better, and it makes sense to me).
I've got a pair of the L-150A X-overs that I want to convert to the 3113b configuration, but they've got the iron core L1. If I order a 2.5 mh air-core coil from a secondary source, would this to the job?
http://www.meniscusaudio.com/Inductors/inductors.cfm
Secondly, the wiring on the L-150A X-over has to go too! It's the wimpiest thing I've ever seen. Single strand of #7 pencil lead stuff.
Any help would be appreciated!
Regis