Art Dpsii
I've had great results with this unit---it appears that ART addressed issues with the earlier versions (both TPS and DPS). It offers you a lot of digital and analog flexibility and a lot of sound and level adjustments. The LoZ impedence matching control is a nice feature. You can download the manual at the ART website. I consider it a bargain and would buy another one if mine turned up missing.
I haven't used the "AD-only" feature (insert-in) but it is a 44.1-96 kHz unit. I've used it to send both ADAT and S/PDIF and it works great. By the way, the 1/4-in inputs (front panel, rear panel, and insert) offer you three different gain structures/options before AD conversion. It also has some handy ADAT options, including patching itself into the ADAT stream, between another ADAT unit and your recorder.
Paj
8^)