Personally, I'm very happy with the Denon PMA 1510AE. My old Canton Ergo loudspeakers 90 are called correctly and show me what in the past 20 years has done everything in terms of technology. I should not expect so that you can hear a difference so. My 26 year old Denon PMA 520 has had its day. Off to new shores. Soon be the Canton Vento 890.2 DC matured so that everything is consistent. ;-)