Dear Volleyguy: With all my respect to you and for what you already posted ( caps's size, a higher price cap is better, parallel/series caps, no breacking time to the caps, caps combinations, inductors, taking the Tempo people like a reference, etc, etc )it is clear to me that you are a " Rockie " about caps inductors and speaker voicing.
What is a surprise to me is that with all that non-know how about suddenly you are an expert and give advise about to other Agoner's in many ways ( example ): +++++ This is something for all to consider when replacing caps make sure you get as big (dynamic) cap as before .... " +++++
IMHO in all what you are posted the only coherent statement is:
**** The Sonicaps to me are nuetral so the flaws only become apparent on direct comparison *******
You really don't know those " flaws " because for what you already posted you don't have any reference but other caps that maybe are the ones that has the " flaws ".
Undertow posted: +++++ As for sonicaps, well my opinion they are a cheap cap, and yes are a bit flat *******
he say is a bit flat and you that it is neutral, well IMHO both characteristics are highly desirous in any cap reagrdless of price ( the price means nothing about the quality performance in a cap. ).
From my experiences and the other people experiences the Mundorf are not a neutral-flat cap ( either the Duelund in lower level ) it adds colorations/distortions ( like the ones that you are hearing: dynamics, a false dynamics I have to say ).
Why don't like you the neutral-flat Sonicaps? well because show you the whole quality limitations in your system that for what you report about is not of a very high quality performance ( between other things the Scala's are not up to the task. ).
Why many people does not like a flat response in their audio systems? why they like the colored ( heavy colored/distorted ) system performance? because with a neutral-flat system only the good audio items designs can give them a pleasure and enjoying music, poor or mediocre designs ( everywhere in the audio chain ) show immediatly its " cooper " and IMHO that's what is happening to you.
The Sonicaps IMHO are a lot better of what you are reporting and more " honest " than the Mundorf or Duelunds.
This is what Atmasphere posted about caps of the same type like the MUN/DUEL that I agree about:
+++++ Paper and oil is nice, but in nearly all of them there is a slightly shelved high frequency character (mind you- not a rolloff) that causes them to have an overly delicate character. Nice for a lot of things but annoying if you play the complete range of music on your system. " +++++
+++++ Certainly they are more detailed than paper and oils with considerably more neutrality. Paper and Oil caps can develop electrical leakage over time that can damage other parts- +++++
both statements comes from someone that really knows what is talking about.
It is clear for me that your whole system ( through the Scalas ) are in trouble about quality performance and the Mundorf-Duelunds not only hide it but make heavier.
Of course, like I posted in my first post, that you like a colored/distorted performance nothing wrong with that but please don't give advise that a colored/distorted cap is a better choice than a neutral one.
IMHO any cap must be designed to add nothing and to be dead neutral as the materials permit it ( nothing is perfect ) and not to design caps with a precise signature performance ( colorations added ) like the Mundorfs-Duelunds that are frequency/performance manipulated on purpose.
Regards and enjoy the music.
Raul.