Luxman 590AX II Break-In

Hello all, and happy holidays,

To those with experience, how many hours of a break-in are necessary to make the Luxman sing? I have about 175 hours, and my bass is less than stellar. Also, there is not a luscious midrange (yet). I have read epic reviews but have not experienced that thus far. What should I expect over time? Getting a little worried!

Thanks!