Sonus Faber Stradivari amp: X600.5 or X1000.5 ?

Ive just ordered a pair of XA160.5. In max one month it should be here. Thanks for all advices and i hope i will be very happy with my new pair of amps.
Thanks.

Ive just received the pair of XA160.5 yesterday. The sound is very good but it still needs some break in time. Does anyone knows how long it takes for XA160.5 for full break in ?

Congrats. I still remember that the magic began after 5 days. Seemed rather stable after 7 days of continuous play. Big, open, effortless is what you'll hear with the break-in. They probably sound closed and slightly raw right now. Good, but not quite right.

To this day, I cannot tell a difference from powering out of standby vs. the end of the day of listening. This is suprising because my system is ultra sensitive to the slightest pertubation. The X600.5 needed 4-6 hours of power before they started to congeal.

I didnt power off since i got them yesterday and now they have about 20 hours of music play...10 yesterday and 10 today...and i'm gonna let it sing more. The difference since yesterday is not that big. I think this 6 big 25.000uF capacitors needs like 600 hours for full brake in ?

PS: the power is more then enough for my Strads. Playing at very loud levels and the metter dosent move at all. So this means it dosent leave class A. I just tried on some metal music at extreme loud and it started to move a little. :)

I recall the break-in was not gradual and progressive. It all happened in 2 days, after several days of little to no change.

I don't think it will take 600 hours. Maybe 200.