I always hate it when an 'upgrade' turns into something not expected, so I will commiserate with you.
I was going to say it may be the 'break-in' period, but you seem to dismiss that.-Did the previous owner say how long they were played?
Perhaps another consideration may be the speaker cables and interconnects, which you have not listed.
Also, room acoustics may also play a part in your displeasure.
I was going to say it may be the 'break-in' period, but you seem to dismiss that.-Did the previous owner say how long they were played?
Perhaps another consideration may be the speaker cables and interconnects, which you have not listed.
Also, room acoustics may also play a part in your displeasure.