Best Capacitors for Crossovers


I am now in the tweaking stage of trying different caps in my crossovers for my DIY homemade 2 way. I presently have and will soon try a 5.6uf 800 vdc +/- 2% Jantzen Audio Silver Z-cap.

I see that Mundorf, V Cap get a lot of accolades, and the Dueland are quite pricey.

Does anyone have a favorite?

I am trying to cross over at about 4500HZ at 6db.

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This is the Tweeter I’m using.


http://www.parts-express.com/aurum-cantus-g2si-ribbon-tweeter--276-400

Aurum Cantus G2Si Ribbon Tweeter

Highlights

  • High 96 dB sensitivity is great for efficient designs
  • Excellent high-frequency extension, can be used as a supertweeter
  • Extremely fast transient response allows reproduction of the finest details
  • Smooth and effecient frequency response from 1,700 to over 20,000 Hz


I highly recommended Jupiter copper foil caps. I prefer them to Duelund and have tried both. Far superior to Mundorf in every way, but most especially in the mids and micro details. The Jupiter cap is very linear with no part of the sound spectrum highlighted.  I find the top of the line Mundorfs a tad boosted in the highs. The Duelunds a tad bumped in the upper mids. The Jupiers are so smooooth! 
You might want to try DIYAudio, but in the "affordable" boutique crossovers my favorites so far:

Clarity MR (now CMR)
Clarity ESA
Mundorf MKP
Mundorf Supremes

Yeah, I list the Supreme’s lowest due to an artificial Disney-like sheen or scintilation. It is NOT natural, you don’t hear it when listening to live music, but if you like it, do it! :) Magico is enamored of the entire Supreme line and why I’m not enamored of Magico. :) Clearly I’m in the minority.

Solen’s have been such a mixed bag now I refuse to even look at them. I hear good things from the top line models, but meh, not about to try them.

I also like Audyn Truecopper (Bypass values only)

The Mundorf MKP is a great upgrade for many, and the prices are hard to beat.