Honestly, I can't believe at $975 no one has bought this beauty! Rockhopper made and one of the very best SS headphone amps I've ever heard.
Sure there are different options 2 channel passive, 3 channel active ground and fully balanced as well a myriad of different component choices. If you combine that with build quality and there are many variables at play.
I’ve had great success with my balanced set-up driving both the HE-6’s and LCD-2’s.
A FW would have ample current, operates in true class A, from a widely respected designer and enthusiast who’s been around for donkeys years. I’ve been around the traps long enough to know if amplifier is well designed and the implementation and specs are respectable then your 95% there. The trouble with HF and these forums is the continual hype train and need for manufacturer product turnover - how many ways can a wheel be re-invented, on these forums it’s simple endless.
I don’t find this with good solid state.
I don’t find good (eg FW, KG Dynahi, Beta22) solid state any less delicate sounding than than good tube/hybrid amps (eg Cavalli), nor do I think they exhibit a darker background. This may be contrary to your experience but it’s certainly not mine.
I believe those are all SS amps, even the hybrids, the output devices are all transistors or opamps. Try an all tube amplifier.
You’ve forgotten the Bijou .
My point being I cannot hear a darkness of lack of delicacy with SS amps, I also haven’t heard an (all) tube amp that would indicate this.
Ok hands up we beg to differ... which is the fun part of our hobby.
sorry to take the thread off topic.
Point was that it's entirely within the brain that the actual perception of sound occurs.