Agains thanks for all the responses and to answer "some" of your questions, here is some information on the HD AVP (Preamp Processor) and the HD AVA (which includes a 200wpc stereo amp onboard)
NuPrime HD-AVP And HD-AVA
The NuPrime HD-AVP all-digital HT preamp/processor delivers ultra-high resolution USB audio decoding at PCM 384K or DSD256, 24bit/192kHz digital audio, hard-disk media playback, wireless streaming and superb 4K HD video.
There are six HDMI, two optical, two coaxial, four stereo analog, one USB Audio and three USB Host (for hard drive) inputs. Two HDMI outputs can be selected from any of the six inputs.
The audio outputs include 7.1-channel RCA, 2-channel Zone1, Zone2 and Line Out, 4-channel XLR.
A built-in Wi-Fi network supports Airplay, DLNA and Miracast.
The HD-AVP easily accommodates the most complex home theater system configurations.The HD-AVA is HD-AVP with the addition of 200W x 2 power amp utilizing NuPrime Reference LE class amplifier technology.
Audio Features:
1.Supporting the latest HD audio decoding, including Dolby TrueHD, Dolby Digital Plus, DTS Master, DTS Hi-Res.
2.SD audio decoding compatible with Dolby Digital (EX), DTS, DTS ES (D6.1, M6.1), DTS 96/24, up to 192k PCM for 7.1 CH etc.
3.Supporting matrix technology such as Dolby Pro Logic IIz, DTS Neo:6 etc.
4.Intelligent room acoustic scanning feature
5.Powerful bass management feature for individually managing front, center, surround, and rear speakers over a cross-over filter. Increasing the performance of single / double post positioning devices.
6.Comes with an equalizer of eleven different options and settings.
7.Comprehensive cross-over design.
Video Features:
1.Supporting HDMI 1.42.6 HDMI inputs
2. HDMI outputs: HDMI 1/ HDMI 2/ HDMI 3/ HDMI 4 support up to 4K, HDMI 5 / HDMI 6 supports up to 1080P.
3. HDMI supports up to 4K, YUV, RGB, supporting DVI mode, supporting HD audio, 8 CH LPCM.
4. Supporting 3D video playback
5. Supporting HDMI CEC control management
6. Supporting HDMI ARC audio return
7. Video input compatibility: HDMI/DVI, 480P, 576P, 720P50, 720P60, 1080i 50, 1080i 60, 1080P 50, 1080P 60, 1080P 24, 2160P 30, 2160P 24.
8. Including hard-disk player, 3 USB ports (1 in front panel 2 in back panel), capable of playing audio/video directly from USB drive or hard-disk drive.
The HDMI 1.4 specification supports multiple 4K formats:3840 pixels wide by 2160 pixels high @ 24Hz | 25Hz | 30Hz4096 pixels wide by 2160 pixels high @ 24Hz