just purchased a new Primare I20 Integrated.

The Dealer suggest 100 hours run-in period and play at low volume or high volume is the same.

Question:

1. Is the 100 hours run-in period sufficient?

2. What is the sound different before and after run-in?

Please, I am a new bird need you guy (Master in hi-fi) some advice.

My-Set-up: Marantz CD4000 + Monitor Silver Connect + Primare I20 + QED Cables + Mordaunt-short 902.