I have used in Both... Speakers were really worse, hovlands are definitely not a good choice in the speakers from what I have tried... very dry, very compressed, and never really totally flatened out.. Electronics might not be as bad unless its used as a main cap really like an output cap on a preamp or something that I would not do... In other areas maybe somewhere even out of the signal they seem okay... But I would just use a cheap solen cap and be happier.
As for dynamicaps, not bad, but a bit too, "Explosive" or enhanced basically having a weird way of making things sound over the top sometimes, like a bit of a boombox with those Boost buttons all activated if that makes any sense, they are somewhat smooth but raw, and just as that artical says about them they DEFINITELY do not react too well mixed with other caps, the only thing that has worked well with them in the end with electronics was exactly what Soniccraft the owners of sonic caps says to do and that is bypass them with a sonicap platinum small value, but this gets very expensive... But balances and cleans them up pretty well.. I would still just go with a jantzen supreme single cap for way less money and get 99% of this sound however.. But Jantzen supremes bypassed with a sonic cap platinum is really killer..
There is a billion ways to get certain results so its all going to come down to the physcial size and costs you have to work with, and some applications will react better than others overall with some combos or caps.
Oh and by the way one of my favorites in critical applications like phono stage has been the cardas golden reference caps, but only available up to 1 uF and very expensive.. I believe the bass and overall was more neutral than the Mundorfs, however these take some time to burn in, cost, size, and values can be an issue... The Jantzen superior is literally as good in the applications I have used them however, very similar sonic signature as well.
