Magnepan crossover question

[Paul Joppa]

Nonpolars have two main applications as far as I know: cheap crossovers, and cheap motor-start capacitors.

 

[earwaxxer]

One more point for this thread, and maybe we can lay it to rest.... Maggie crossovers are the easiest to mess with because you dont have to yank a driver to do it. What I have learned, though, is that I cant imagine ANY speaker, outside of a Wilson or Magico etc that I would feel comfortable leaving said crossover to its own. This is by far IMO the biggest bang for the buck mod you can do. They all hide cheap crap in there. They have to. Its simple economics. Thats one of the reasons I probably cant buy a box speaker ever again, because I would be forced to tear it apart not long after it was broken in.

 

[adamct]

Well, here is another update: I installed new stands on my MG12s tonight. I took another look at the crossover before I did. I think I misread the bypass cap on the 33uf treble cap. The label reads like this:

0.            10uf

When I peeked under the "skirt" on the MG12s, I only saw the "10uf". I didn't see the large "0." all the way over on the side.

So the 33uf cap was bypassed with a 0.10uf cap, which makes much more sense!

 

[earwaxxer]

makes sense... What was the brand? .. or forget it.. I 'm supposed to let it go!

 

[adamct]

It's a Northcreek Crescendo film and foil cap. See here.

 

[earwaxxer]

Update on the Mundorf EVO almum/oil 10uf in my MMG's... got probably about 50hrs on them now. They are definately "opening up". What I also noted is that they benefit from the Mundorf silver/oil "bypass". Early on there was no noticable difference. Nice "well behaved" top end and mids. Non-irritating. Natural and musical. A CLEAR upgrade from the AmpOhm paper/oil IMO. What was interesting was that the caps started out a bit "restricted" and rolled off. Not the usual nasty bright and crappy.

 

[earwaxxer]

Sorry, forgot to add - HOW are the EVO's better from the AmpOhm paper/oils - IMO of course. I would say that it has to do with resolution and PRAT. Tighter. More natural. I think I payed more for the AmpOhms.  Dont remember. The AmpOhms seemed to "smooth" things out compared to say Obligatto gold, or Jantzen Superior Z. The EVO's did all that with some nice added tightness and natural timber.