+1 @mzkmxcv4+1 @big-greg
Aurender N100C (@lalitk) is a very good product with many attractive features but when I auditioned that vs a Bluesound Vault 2 I could not hear a difference. System was Parasound Halo JC2BP--> A21 --> Vandersteen Treos. (I am able to hear differences with power cable and fuse switches.)
At home, I very happy with sound the Vault 2 produces in my system: JC2BP--> A21 --> Vandersteen Quatros.
You have to consider that since Bluesound manufactures in bulk they can purchase components at prices and access engineering talent that small companies that sell much smaller number of products cannot match.
Vault 2 has very similar guts to Node 2. In addition to streaming, you can rip CDs conveniently to an internal hard drive and play them back.