Your description on tube miking in order to add harmonics brought up questions. Does the same type effect occur with amplification, processing, etc.? Is this why so many people feel that tubed components sound so much better? It would be very difficult for me to go tubes in my pre and amplifiers due to using them both for 2 channel and h/t. Would there be a significant improvement in 2 channel using a tubed cd player? Funds don't allow the ultra hi end but would like to get a bit closer.
Yes and No. I will try to stay away from any argument about which is better. Both are good when used CORRECTLY. Good tube designs can sound pretty much identical to good solid state designs when driven below clipping...at the end of the day it boils down to the way the circuits are implemented and how they are coupled (high impedance ouput transformers often used with tubes will certainly modify the frequency response, for example - is that good or bad - your choice!).
One of the world's top Mastering Engineers, Doug Sax, and founder of Sheffield Labs still uses tubes in his mastering console (built by his brother) - so yes tubes can be used to modify the sound in line level equipment too (and very nicely in a CD player, for example). The main advantage of tubes is that they sound nice when clipping...solid state sounds terrible...and as my drum link above illustrates ...clipping is all to common....even the pop CD's you buy today often have lots of clipped signal on the CD!!! Tubes make a lot of sense for live music or recording live music if you are not sure what levels you may drive the equipment too - like an electric guitar, where musicians always crank it and tubes just sound wonderful when cranked!