First will report on listening tests at home. My system is described in my profile. Set-up for tests is described below.
Could not perform direct comparison of 701 to other units (new TEAC NT-505, old Vault 2) because my Audioquest Victoria RCA IC runs as a unitary cable with split into right and light connectors only near its two ends. Therefore, could not connect 701 to RCA IC because the L and R analog outputs on its back are far apart (as a consequence of its dual mono design). Hence, while 505 and Vault were connected to my Parasound JC2 pre-amp via RCA; 701 was connected via AQ Yukon XLR IC, which IMHO are inferior to Victoria and AQ Earth. I also did some listening with NT-505 connected directly to my Parasound A21 amp via Earth XLR IC. I used stock power cables with both the TEAC units. Connection to Internet in all cases was via Wireworld Starlight 8 cable to Ethernet port.