An Ayre AX-7 would be a big step up from your NAD.
9 responses Add your response
For $1299, you really should audition the Rogue Audio Sphinx.
It's a Class D/tube hybrid that will give your system dynamics in spades.
To fit your budget, there's also the Marantz PM8005 for $1200 USD. 70 wpc/8 ohms, 100w/4 ohms with tone control bypass.
or look for a used Ayre AX-7, may be hard to find.