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In Reply to: RE: Magnepan 12QR crossover question posted by krakus248@gmail.com on August 29, 2014 at 22:47:24
The Ecap electrolytics though much better than older low ESR electrolytics are still not to the level of the other caps you are using. I would suggest you use MKPs instead.
The other Mundorfs I assume are MKP metalized polyprop. They are very good. The oil cap for the tweeter is a very good idea.
Follow Ups:
Of course MKP's are better than Electrolytics .
But they are much bigger too, so no matter if i use single 50uF, or try to combine 50uF from smaller capacities - there is no way to mount them into MG12 crossover space....
I do not want to have the external one, so this is why i have to stick to electrolytics....
There are lower voltage square stacked film caps that don't occupy as much space, lots of models from Wima for example. Perhaps those would fit.
Later, if you have an extra pair of power amplifier channels, ask us about line-level bi-amp options for Maggies. These can be built active or passive (the latter, rather easily and inexpensively). With these, the issue of the large external xover boxes could be "mostly resolved". More importantly, the true potential of those 12s could be easily tapped.
Have fun! (and pls let us know how it goes)
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