I have a pair of Mad Dog headphones like this guy and I have been set on going SS and upgrade from my Schiit Modi amp. However, curiousity kicks in but I am a complete newbie about tube amps (and tubes in general). My question is not Mad Dog specific as that would seem better placed in that thread, but more about general idea of tube amps..specifically the Schiit Lyr.
I already knew going down the tube amp road would be more expensive than SS, but what is the lifetime on tubes? If I am going to invest in some tubes ($100+), how long do they last considering you use them for 4-5 hours a day? Do the stock tubes that come with the Lyr amp not compete in anyway to these tubes I am seeing on ebay for $2-300?
I have never experienced tube amps.