speaker capacitors-----leave alone or does it open pandora's box ?

+1 don_c55! Cap replacement is for the audio neurotics - and is cheaper than going to a therapist!

@erik_squires 
I've recapped speakers. It's not brain surgery. Any idiot can do it. It gets expensive when you're needing big values with high voltages. The voltage ratings are important. Solen are my choice. Better than Audyn in my opinion. 

@Kosst_amojan     what type Audyn you mean ?
Red, white or pure copper?  Or better  because is better?

Gang,

Just FYI, I have measured capacitance, and ESR (equivalent series resistance) as I have modded speakers.

I have been fortunate enough to speak with capacitor manufacturers about this particular subject, and their experience mirrors my own: neither ESR nor absolute capacitance explains perceived sound quality.

For a while, there was a belief ESR mattered, probably because film caps were universally better than bi-polar electrolytic. From my experience it does not make a difference so long as you properly compensate for loss in ESR with additional resistance. Some high ESR films sound better than low ESR film caps. The original Clarity MR come to mind as relatively high ESR film caps(but my memory is now foggy).

@Kosst - See, your recommendation for Solen’s seems much more reasonable. I will say I’ve only tried Audyn’s top end, the TrueCopper, and these at the suggestion of SpeakerDoctor (RIP). At Solen's low end I have not been very impressed. I think if the OP wanted to experiment with top end Solen bypass caps, and maybe some Mundorf Supreme’s he’d learn a great deal.

If you look back at my first suggestions, I keep trying to suggest the OP spend moderate amounts and experiment for himself. I think that was the last paragraph in your previous post, right? How much is a pair of Solen top-end 0.1uF caps? Probably pretty easy to try out. 

Best,

Erik

Thanks @grannyring !

I will say, Mundorf top end caps are weird. Magico is a big fan of them. Now, as I often say, BUY WHAT YOU LIKE!

To my ears, the Mundorf supreme’s scintillate. They aren’t bright so much as they sparkle. Like they saturate the top end with color.

Again, BUY WHAT YOU LIKE, but that’s what I hear, and many, many love that. I prefer the calmer and translucent waters of the Clarity line myself, but that doesn’t prevent me from hearing the differences and understanding some are really going to want to bring that sound home.

Best,

Erik