Preamp break-in

Thank you for the responses.
 I’m happy with the improvement with the caps already.
 I can only imagine how much better it will be after break-in!

Yes they need to play music, but the amps don’t have to be on. :)

Set the volume level to normal listening volume. 

Break in, you know it's happened when you find your self just listening to the music and your not thinking about it any more. Happy listening.

Recapping wasn’t cheap (about $1500,) but it’s probably the best investment I could have made.  Already hearing amazing improvement.
 Like I just bought a super expensive piece of equipment.

See? This relates with your other thread regarding upgrades. Sometimes little things make a big difference.
The big question is when to stop.
And, yes, things need time to settle in. The best part is when you notice it. I never thought electronics would need a break in period, but once I actually heard it, I knew it was a fact.
Good luck.
B