The Denon has tone controls so you can set your highs to your preference. As for the Marantz PM8005, it is a different amp than the Denon PMA-1510AE, but not less well made or lacking guts. I'd personally go for the more powerfull Denon due to the agile PSU and circuitry. For build quality, warranty and maintaining resale value, I'd go for the Marantz.