Dueland CAST PIO

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%.

This is a quote from the designer at Vapor regarding the Duelund CAST.

"They are the best caps available, period. Also the most expensive caps available, period.

What they do is remove that last bit of hash from the reproduction that you didn't even know was there. The background becomes darker, details are more delineated in space, and everything just sound more present in the room with you."

You can do a lot worse than the OIMP with a small value V-Cap bypass. I believe that the CAST alone (no need for a bypass cap) will just sound more natural and pure. It'd make a very good speaker even better.