TASCAM tells us that the US-322 and US-366 combine compelling new technologies like on-board digital mixers (DSP Mixer) and on-board digital effects (DSP Effects) along with advances on the US-122mkII and US-144mkII interfaces. They say that the US-322 and US-366 sport similar aluminum casings for the same rugged reliability plus new improved HDDA (High Definition Discrete Architecture) mic press, which offer a wider frequency response (10Hz to 68kHz), high S/N ratio (98dB), low EIN (-120dBu) and low THD+N (0.0045%) - qualities that TASCAM believes are rarely achieved in interfaces this affordable. Here's the full details in TASCAM's own words...
These all-new interfaces boast low S/N ratio, low THD and the US-366 flaunts 24bit/192kHz recording; certifying these as the best sounding interfaces to be released by TASCAM yet. The 2-in/2-out US-322 features 1 Mic XLR/Line-Guitar TRS input, 1 Mic XLR/Line TRS input, 2 Line TRS and 2 Line RCA outputs. The 6-in/4-out or 4-in/6-out US-366 adds 2 Line RCA inputs and 1 Digital RCA/Optical input/output. One click of the top-loaded "Mixer Panel" button will access TASCAM's new mixing console screen and on-board insert/send effects for easy-to-use, versatile recording. The digital mixer offers two operational modes, multi-track mode and stereo-mix mode.
After months of organized tests by TASCAM's esteemed engineers and R&D department, the new TASCAM interfaces are guaranteed to offer new luxuries, reliability and value not found before in competing models. TASCAM's US-322 and US-366 are bundled with Cubase LE6, feature easy-to-use controls, amazing quality, and feature-rich technology, advantages sure to please professional and amateur recording artists alike.
US-322 and US-366 Common Features
2 - XLR mic inputs with HDDA mic pres and +48V phantom power
On-board digital mixer - "Multi-track mode" or "Stereo mix mode" selectable