As has been pointed out by JD..
In their 2nd generation HDMI 1.3 and next their HDMI 1.4 AVRs, Denon uses the ADI Sharc DSPs. Their 1st generation HDMI 1.3 AVRs Denon (like Onkyo, Yamaha, Pioneer, HK) used the TI (DA7xx) as it was the 1st and only DSP @ the time with the HD audio certifications by Dolby & DTS..
Just my $0.02...
In their 2nd generation HDMI 1.3 and next their HDMI 1.4 AVRs, Denon uses the ADI Sharc DSPs. Their 1st generation HDMI 1.3 AVRs Denon (like Onkyo, Yamaha, Pioneer, HK) used the TI (DA7xx) as it was the 1st and only DSP @ the time with the HD audio certifications by Dolby & DTS..
Just my $0.02...
















Note however, that unless you brought both models home to test MultEQ vs. XT, you most likely didn't hear the differece because Audyssey was not enabled as stores (eg. Best Buy) generally don't enable the Auto EQ on their demo models as it could only be used with one set of speakers and they want the capability to demo with multiple sets of speakers without giving an advantage to any specific set by using the Auto EQ (eg. Audyssey).



