In a features sense, the G68 is a 568.2 processor and a 562V.3 in one box with the luxury of a tuner. Plus the luxury of modular construction (3 bays) and 60-band digital room correction. The G98 DVD player interestingly is what adds HDMI outs and composite/S-Video linedoubling/HDMI conversion. No DVI or HDMI inputs, however. Since it's modular, I get the sense that there was no need to rush into DVI/HDMI inputs when they can easily be added. The coolest thing is the synergy between the G68 and G98 and the division of duties between them. The DVD player does the 5.1 decoding and line doubling of all sources, the processor handles 5.1 to 7.1 conversion, bass management, room correction and upsampling of all channels.
I'd recommend G91 over G98 when they are available. While G98 will scale external video sources, it cannot accept an external digital source.
G91 OTOH, accepts external digital sources, and decodes internally. By using the G91 as your DD/DTS decoder you will then effectively have scaling + upsampling for all digital inputs and 1 to 3 cables for digital audio (depending on whether the endpoint is G68 or 861).
The only downside to G91 that I can see, is that it duplicates the tuner found in the G68.
Just my thougts.
FYI, I'm looking at the press handouts from Meridian's press conference at CEDIA... I should also point out that all of the handouts are marked preliminary and might change.
G68 cannot upsample any input format. Upsampling is done for PCM inputs on the digital input receiver, and the decode of DD/DTS also occurs on the digital input receiver. It can do only one of these two functions at a time. By using G91 as your external decoder all input is PCM, which is then upsampled on the receiver before processing in the main DSP section.
This has been discussed in depth at the Hitchhiker's Guide to Meridian where you also participate.
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