2. amps-preamps
  3. 1323565551

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
syntax's avatar
syntax
2,193 posts
 
...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 ..

That's the way they are. There won't be big differences but you will get used to it and after a while you will like it.
magfan
1,583 posts
 
Pass doesn't do some kind of bench break-in prior to shipping ala Bryston?

Give the caps a chance to form, maybe.
rok2id's avatar
rok2id
7,816 posts
 
"There won't be big differences but you will get used to it and after a while you will like it."

Finally! Thank you.
Ag insider logo xs@2x
jgiacalo OP
446 posts
 
Thanks for all the responses and encouragement.
More to discover