Dueland CAST PIO

On my 2-way vintage speakers, the Duelund CAST cap made a much bigger difference when used on the high-pass (tweeter) than on the low-pass (woofer). In each case, the Duelund was replacing a Mundorf Supreme (regular version) so this was a fair evaluation.

In general, if funds only permit upgrading one cap in a 2-way crossover, I would go with a Duelund on the tweeter since that should give the biggest improvement for the buck. In a 3-way crossover, things are more complicated. It's possible the midrange may benefit the most but the crossover will also be more complex so you may need more Duelunds.

Bill if the gap from the Mundorf SGO to the CAST is large I believe you as you've tried many capacitors and have much experience. I assume the SGO is better than my stock Solen capacitor so thought the contrast might be more subtle. The Vapor builder says 10% improvement, I wonder what cap is he comparing the CAST to?
Charles,

Good question Charles. I assume one person's 10% is another person's 25%. Impossible to quantify and subjective reality.

That's true bill, it's purely subjective. I'll sum it up this way, I can only see a very positive result in choosing the Duelud CAST. Good luck Ssos101.

The current capacitor on the Vapor Cirrus are the VH Audio OIMP.

These are the standard specs coming with my speakers.

Standard Features
Exclusive Custom RAAL Ribbon Tweeter Element
AudioTechnology 7” woofer with Extended Bass Shelf tuning
Mass loaded constrained layer baffle
Laminated void free baltic birch ply cabinet with mass loaded constrained layer top
Vapor Audio’s proprietary Acoustic Inversion Layer dampening treatment to eliminate cabinet resonance and reduce cabinet wall resonance by over 20db.
Standard Crossover Features:
Jensen 12ga wax/paper Foil Inductors used on woofer and tweeter
VH Audio OIMP capacitors with VH Audio Teflon V-Cap bypass
All point-to-point hand soldered with Cardas Silver Solder
Dueland Resistors
Crossover is contained in separate vibration isolated chamber
Connectivity and Wiring:
WBT 0780 Binding Posts
Wired internally with braided Kimber TCSS for tweeter, Kimber 4TC for woofer

Tryingto figure out if the Duelund CAST on the Cirrus will be worth the upgrade. From what I have heard, the parts for these speakers are already pretty great so you wont really hear a major difference.

However, Ryan the designer at vapor did mentin that i WILL be able to hear a difference, just not more than 10%.