Here's a bit of heresy. I actually think Solens sound very good in the lower frequency ranges. I have them in the woofer (<150Hz, 200uF) and low midrange (150-800Hz, 70uF) circuits in my RSIIb speakers, and the sound is excellent. Far, far better than the electrolytics they replaced.
I do find they are not so good at higher frequencies, though. Every time I've used them on a tweeter I haven't liked the results. Harsh is the word that comes to mind.
I do find they are not so good at higher frequencies, though. Every time I've used them on a tweeter I haven't liked the results. Harsh is the word that comes to mind.