I think you'd have the Pass XA30.5 or XA60.5 for at least twice as long as the Spectrons. Maybe even three times...
Anyway, if you are searching for your final destination, I would skip the Pass X150.5. The XA.5 sounds much better than the X.5s on their best day. If the XA.5s sound better after being on for a number of hours, I cannot tell. The X.5s do need a number of hours to stabilize, even from standby.
Anyway, if you are searching for your final destination, I would skip the Pass X150.5. The XA.5 sounds much better than the X.5s on their best day. If the XA.5s sound better after being on for a number of hours, I cannot tell. The X.5s do need a number of hours to stabilize, even from standby.