Check around for reviews on these, they get very high ratings for circuitry and the quality of the preamps.
Please note, this is NOT and interface, this is an extension to your interface, adding additional channels and preamps. See http://www.rme-audio.de/en_products_octamic.php for technical details.
Includes Octamic-D and original power adapter.
$800 shipped to the CONUS
Connectivity
8 x Mic Preamp Input (XLR/TRS Combo)
8 x Line Output (TRS balanced)
Line-Outs parallel to D-sub for direct connection with ADI-8 DS/PRO
optional: battery-powered operation
OctaMic D additional features:
8-fold AD converter (up to 192 kHz)
2 x ADAT Output (S/Mux, up to 96 kHz)
4 x AES/EBU Output (D-sub, up to 192 kHz)
1x AES-Input, Sync only
