Great, I ordered Rike S caps for my crossovers 2 days ago. Thanks for making me waste my money! J/k I'm sure things will clear up with more burn in. Other reports say vocals are a particular strong suit of this cap. Lets see.
YES, the problem was the insufficient burning!!
<I can not abstain from a new comparison from my memory with ARC DAC7>.
Vocals getting better, more beautiful. The sound loss their "harsh character" or what I called too colorful or artificial..
It is now incredible what did those capacitors. I'm sure that the sound-stage, details, the separation between instruments, and probably imaging are about on the same level with DAC7. I do not remember to be better with ARC. Speed, timing, dynamics, the tonal balance, hmm..I am thinking that Havana can not be better but even to much weaker. It was what I would call closer to perfection when I heard Dac7.
So, voices became more realistic, extensive and firm and are expressed with a superior texture, certainly richer compared with Auricap (differences are consistent). Probably the vocals will sound slightly more natural and refined with ARC, but here I can not see critical differences from now on.
My only categorical reservation would be on the bass side, if I were to compare the two DACs. With ARC bass is more consistent, with a slightly better extension and expressed more complete, more nuanced in frequency. But I say that you can live peacefully with Havana becouse the bass quantity and quality is still
impressive compared with the "stock" version.
Personal I like more the treble with Havana overall. The difference it makes by the upper treble area. "Highs" are somewhat attenuated on the upper area with ARC. The decay level of middle treble is similar for both DACs. Still, the transparency seems better with Havana (of course minor differences..)
The wide and depth of the scene is impressive with Rike S-Caps, the layering is very different compared with Auricap! There are better discernible fine micro-details on the background and some noises that I couldn't hear at all before. Audition is very relaxed becouse S-Caps are very coherent capacitors!! ..superior refinement and musicality.
I think that the change of seven 0,10uF film capacitors with Rike S-cap is one of the most efficient upgrade for Havana.