I’d suggest going with the Parasound Halo, or Hint integrated instead of the A21. I own one and I’m extremely happy with it. It has a built in phono stage (moving magnet or moving coil) for your turntable, as well as a DAC, should you consider streaming. It includes controls for a subwoofer which I would recommend if you purchase the KEF LS50’s or Magnepan LRS.
You wouldn’t need to purchase a preamp, so you could sell your NAD and apply those funds to your speaker search. I purchased my Parasound integrated used last year in near mint condition for $1700, which would leave you money for a power conditioner and to upgrade your cables.
Read the reviews on it, its highly rated and loaded with features, including a remote control.
Good luck.
You wouldn’t need to purchase a preamp, so you could sell your NAD and apply those funds to your speaker search. I purchased my Parasound integrated used last year in near mint condition for $1700, which would leave you money for a power conditioner and to upgrade your cables.
Read the reviews on it, its highly rated and loaded with features, including a remote control.
Good luck.