although MP3s ad distortion that is unpleasant. Vinyl (and tube amps) add second order harmonics, which are pleasant sounding.
When I became a bass player (1998), I wondered why tubes were still dominant in guitar amps while their usefulness in hi-fi had finally died. It was finally explained in an article in a music magazine, and I paraphrase:
Tubes color sound.
A hi-fi amplifier is part of the chain of components used to reproduce sound. This means you want the individual components (speakers, amp, cartridge, etc.) to add as little color as possible.
A guitar amp is part of the chain of components used to CREATE sound. Just as you WANT the wood body of an acoustic or solid body guitar to add color to the sound, the amp and speakers are prized for the color they add to the sound. A violin DEPENDS on the wood to create a major part of it's tone.
Also, when solid state breaks up it just sounds BAD. When tubes break up, it can give a really nice "warm and soft" fuzz. That is why some guys use an electrical "soaker" in their amp's speaker path to "soak" much of the power so they can get the sound of an overdriven amp without the excruciating volume.
For stereo music
reproduction, In the 60's and 70's, tube amps had a slight edge on solid state, but it was quickly changing. Tubes have virtually NOTHING on modern high quality solid state today. And what they do have is really more a matter of taste than quality. Their charm is that they are RETRO. But then, is that not why so many of us use the stuff we do. How well would a lot of our equipment fare in double blind listening tests?
Naturally, you can still spend a couple years income on tube stuff, but then, there is a reason for that price, just as there is a reason there is a market for Ferraris. But just as with the Ferrari, they are nice, but the price point left the point of diminishing returns at 10%. They are about exclusivity, first and foremost.
It's not about sound. It is about coolness. Same is true with guitar amps, but to a much lesser degree. You really can come VERY close to modeling classic guitar amps with digital solid state nowadays, and they are only getting better. But it is still VERY cool to jam with a guitar player with classic equipment that knows how to use it.
Slightly relevant: Just get a BBE Sonic Maximizer to triple the sound quality of your system.
