Why do Tube Amps sound more romantic v SS amps

tube amp sound changes almost every 50hr due to tube emissions degradation, bias-balance degradation., accelerated resistor/capacitor aging, etc

This statement is incorrect. Tube amps in general are far more stable than that! With our amps its quite typical to not have to adjust the DC Offset after several months of operation. Back when we had a Bias control on our amps (about 17 years ago) people made similar comments about the bias not needing adjustment. If the amp is any kind of quality, its made out of resistors and capacitors that take 3-4 orders of magnitude to age out, similar to solid state in that regard.

@jumia just not true.

Legato Unum – Sonner Audio

I have heard that most speaker designs are built to deal with solid-state amplifiers. Add that buying a tube amp does not flourish with modern day speakers.  Wish I could recall specifics as to why this is.  Maybe someone else does.

The Legato Series was engineered in a way that they can be driven by a small or large vacuum tube or solid state amplifier and easy placement or set up in a room. Sophisticated cabinet design utilizing one piece molded curve cabinet, state of the speaker drivers, and high quality crossover components work in harmony with our Symmetrical Panoramic design crossover network to deliver a natural sound, effortless micro and macro dynamics, huge soundstage with a sense of air around the musician and instrument while maintaining music emotion.

This series was created to deliver musical expression, huge soundstage and vivid imaging on a small foot print with a more attainable price point.

"Tube amps in general are far more stable than that!” 

what is “”than that”, atmasphere?

Push-Pull amp tubes misbalance cause increase of odd harmonics, even 5% misbalance  is causing more that 0.1% dist. increase easily.

keeping tube amp in a good performance condition is very costly, period. if not, you’ve got a “romance” 

jerryg123,

Maybe for legato speakers, which is nice, but my comment is an overall comment for most speakers.

We live in a solid state amp world and most speakers are not well designed for tube amps. So keep this in mind when you're buying a tube amp.

@aseaman007

What is better to own cost wise sound advantage single ended and push pull ?

Did anyone answer this part of your question? I may have missed it, I am basically blind in one eye, and I do miss things.

My understanding of electronic theory is limited, but I believe that push-pull is a more efficient way to make power, and therefore, if all else is equal, push-pull watts are cheaper than SET watts. But I am personally NOT saying one is better than the other.

I have a friend that says his pair of (SET) Cary 805s are the best thing since white bread. If you have some spare time, put those in as a search engine and see what comes up. You could also read what Dennis Had has to say about his SET (I think I remember that they are called "Inspire") amps. In a nutshell, he claims that with the right speaker (a fairly efficient one) they literally breathe.

On the other hand, about 25 years ago I was buying some tubes (over the phone) from Andy at Vintage tubes, and I engaged him in a conversation comparing the two (SET & push pull) and he was telling me about what 200 watts of "pure class A" push-pull sounded like, and I believe I remember he used the term "liquid fire" in an orgasmic tone of voice.

As for my own experience, I have owned three tube amps & they have all been push-pull. They have, at various times, all performed magic for me. But magic is a subjective & relative term, and remember that I specified "for me."

On edit: and I don’t think "romantic" was necessarily a bad modifier for you to use. "Romantic" is in the ears and eyes of the beholder. When I sit down with a glass of wine or harder liquor or even a beer to enjoy the sound of 23 vacuum tubes, that is about as close as I get to romance these days.