Mboldal1 is correct about burn in. Cable cookers can be tricky, to little time and the customer has to go thru a lengthy break in period. To much time on the cooker and the cables can sound pretty bad, this will go away but may take quite a few hours. I only cook my Silkworms for 24 hours as I've found this gives them a good start on the break in process, they will sound great right out of the box but the customer still gets to hear the differences as they continue to break in and open up. Silver cables tend to take quite a bit longer for treatment.
John