I need to get to the bottom of this, but on the webpage for my Usher 6381's it says "goes better with SS amps". I assume, perhaps, that it's because their rating (87db/8ohm) isn't the easiest to drive (but not THAT hard, I would think??). Still, it's a curious thing to note. I've been curious about tube amps but have always stuck with SS partly due to this suggestion.
I have found that my current amp, which is based on the NS LM3886 chipset, is a musical SS amp with great bass.
I have found that my current amp, which is based on the NS LM3886 chipset, is a musical SS amp with great bass.