Flabby bass from tube CD player - Break in??

I am suffering with what sound like flabby/mushy bass output from my Jolida JD-100 tube CD player. The low level resolution is great but I wish it were tighter. I only have 30 hours or so on the tubes (stock units) ..... am I getting overanxious? Do I need to put 100 hours or more on the unit before I can judge performance?