Breaking-in a Pass Amp


Just got a Pass X150.5 power amp and will be running it constantly for 4-5 days before I listen to evaluate it critically. Out of the box 2-3 hours it's Ok but nothing exciting - good detail and opennness and very dynamic yet tonally bland, limited transparency, a bit sterile and not very involving.
What changes can I expect over time with "X" series amps and how long for them to reach their potential.
They are being driven my a McIntosh c2200 tube preamp and are powering VonSchweikert VR4JR speakers.
Thanks for your comments and suggestions.
Ag insider logo xs@2xjgiacalo

Showing 1 response by rok2id

"There won't be big differences but you will get used to it and after a while you will like it."

Finally! Thank you.