So would the NAD be a significant step up from the the Sony DA2ES in terms of value, sound, and features?
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Spock:
IF your Sony is anything like my old Sony receiver I had from school (STR455 or something, early 90s model), and if the NAD AV receivers are anything like the C370, then yes sonically there will be quite a difference. I can't comment on the features because I'm not into home theatre stuff
If you are unsure, you can (I'm assuming you're in the US) try onlines sites like audiogon.com or audioweb.com. You should be able to score these used (but still fairly new) 751/761s at around half their original retail value; and if you don't like it, just sell it and you'll be out just the shipping costs.
