Best Capacitors for Crossovers

Concerning the new ClarityCap CMR and CSA ranges, it would be a conflict of interest to comment on their performance relative to other brands. However, it seems fair to mention that these models are qualitatively different from other metalized film capacitors with respect to their copper litz end caps. This contrasts with other metalized film caps(e.g. Mundorf, Solen) that use traditional tin-zinc end spray to bridge the metal film layers at the capacitor ends. End sprays atomize and oxidize upon deposition, forming grain boundaries of variable impedance and phase anomalies that worsen with diameter. The performance advantage of a copper end relative to tin-zinc increases with diameter. This particularly favors use in applications involving higher capacitance and larger dimensions as found in crossovers.

I just finished replacing 6uf and 17uf MR with CMR in my much-modified Merlin VSMs. This was a big step up.

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Thank you all for your opinions and suggestions for web site reviews. They have been very helpful. I will try to obtain some of the caps suggested for comparison.

Question:

For a tighter connection, I soldered with silver solder silver spades to the cap leads. After everything is connected, one of the caps does not work!

Now, I don’t know if the cap was dead from the get-go.

But, can the heat from the use of the soldering iron ruin the cap?