solid state vs tubes

Good / Bad designs of both exist. It may not be easy to compare, though since speakers won't be best electrical match for both at the same time.

Best SS designs tolerate some reactive loads better than tubes.

So, if you compare 'best-to-best', you may end up with a tube amp and a certain type of speaker...maybe a single driver, while if you audition a SS amp, you'll find a better speaker.

So, If you're thinking of using a reference pair of speakers to just go thru amps until you find the 'best', forgetit.

Comparing 'best', again, it may BE impossible to tell the difference between tubes and SS in many cases and when using synergistic components. Should that be a surprise?

Key point regarding amp match to speakers by Magfan.

For example, in my case, my system and amps are geared towards optimizing performance with the OHM Walsh speakers.

I might be more receptive to tube amps if I were gunning to optimize other speakers that are more tube friendly.

Optimizing the amp to best drive the speakers is a way more important consideration than picking ss versus tube in my opinion. That and matching speakers to teh room may be the two most important things to get right when building a system in order to best assure top notch performance.

As a corollary, if tube sound is what you seek, then start with a good tube amp and then find the right speakers that can be run optimally from that.

There may be others, but Merlin is one high end speaker maker that cleverly provides optional tweaks to their speakers that enable optimal matching of tube amps as well as SS to the same speaker (their RC network tweak, which is apparently geared to provide a better impedance load for tube amps to drive in addition to other things). It would be cool if OHM did something similar, but I do not think tube amp affectionados make up a significant enough part of their customer base to bother.

In general, I believe speakers that do not have widely varying impedance curves at various frequencies should work well with either tubes or SS, but tubes may have the overall edge here still in regards to overall tonal balance in general in that I do not think most SS amps these days are voiced for this scenario in that most speakers do not fall into this category. Many modern speaker designs do not meet this criteria and many manufacturers do not provide a lot of info regarding their speakers compatibility with tubes versus SS. They just want to sell their speakers to anyone who might like them and not make things too complicated or restrictive.

Bottom line: Top notch results can be had with either technology if the amp is matched by design to optimally drive the speakers. A great amp can sound lousy running the wrong speakers and vice versa.

Agree with Magfan and Mapman 100%. Choose the speaker you love, that will (ought to) guide you to the best amp for you, SS or tubes. Be careful of equipment reviews or opionions outside of system context, it makes all the difference.

I agree with Pubul57 100%;don't get wrapped up in reviews
and always let your ears guide you in this process.

I am yet to hear a solid state amp that really sounds like a tube amp. There are some really great solid state amp out there though.