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Old 13th November 2015
  #8
Lives for gear
 

Verified Member
Also, it could be cool to have some feedback from users about how easy it is to keep the unit in good shape.
Like how expensive the tube are ? Does it need service often.
Those kind of question which also matters in term of daily use.

Like what about the KNIF Pure Mu ?
How expensive are new tubes and when do you need to change them ? (I'm quite new in the tube world)