Assuming for a minute, I have this fantastic speaker & sub system that meets with everyones approval- thank you mastah, can someone please explain to me the audio differences I will hear on 1. A tube CD player, 2. A tube receiver, 3. A tube DVD 4. a tube DAC versus a solid state CD player, receiver, DVD & DAC. Assume initially just 1 of these is tube & the rest of the system is solid state & then assume everything is tube. Are these significant differences? Thanks for any responses