Probably some digital amp. Their output transistors (high speed switching fets) go full on to full off at about 500KHz. I really like the sound of my CarverPro ZR1600, but I would not give slew rate all the credit.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.