@mabonn as @audiotroy mentioned you can pair the Aurender with any DAC and you'll have excellent results assuming the DAC is providing you with the sound character you are looking for. If you want an all-in-one solution, Aurender's A10 or A100 might be perfect.
Since you mention using a Primaluna integrated amp and Acoustic Zen speakers, and right now a Linn Sondek turntable, you might prefer a DAC that is less like the AK4490 found in the Aurender and a bit closer to what you already hear. Unless you know you have what you want from the Primaluna and Acoustic Zen and want to couple them with the very clean and neutral sound of the AK4490.
If you want something a bit more "musical" or "analog" sounding within your budget, then I would recommend looking at a Lumin with transformer-coupled outputs like the D2 or a used A1 or T1. Lumin devices don't have built-in hard disks like Aurender though, in case that is an important consideration for you.
I'll also promote my own D100 Mk2 DAC which also has transformer coupled outputs, for use with a network streamer, but it wouldn't be an all-in-one unit anymore.
You might also consider Auralic Altair or Vega for an all-in-one unit. But they use ESS SABRE DAC chips, which probably isn't what you'd prefer given your existing choice of gear.
Since you mention using a Primaluna integrated amp and Acoustic Zen speakers, and right now a Linn Sondek turntable, you might prefer a DAC that is less like the AK4490 found in the Aurender and a bit closer to what you already hear. Unless you know you have what you want from the Primaluna and Acoustic Zen and want to couple them with the very clean and neutral sound of the AK4490.
If you want something a bit more "musical" or "analog" sounding within your budget, then I would recommend looking at a Lumin with transformer-coupled outputs like the D2 or a used A1 or T1. Lumin devices don't have built-in hard disks like Aurender though, in case that is an important consideration for you.
I'll also promote my own D100 Mk2 DAC which also has transformer coupled outputs, for use with a network streamer, but it wouldn't be an all-in-one unit anymore.
You might also consider Auralic Altair or Vega for an all-in-one unit. But they use ESS SABRE DAC chips, which probably isn't what you'd prefer given your existing choice of gear.