Hi Lakshman,
I have personally compared Denon 1909, 2309, 2809 and 3808A models. I can confirm that there are sonic benefits as we go up. So do not make any assumptions about the circuitry. They have different boards, are manufactured in different countries and do sound different.
Only the top two above have the "Multi EQ XT", 2809 has two DSP processors, while others have one. Only some of them have the AL24 processing for PCM.
So do not go by theoretical advice. Take you favorite CDs/DVDs and spend at least one hour on two occasions with these devices. Buy the one you like. Video is quick to judge, but audio takes a long time. Sometimes it is already too late by the time you realize.
Thanks,
Sharad
My Setup:
- Sources: Panasonic BD30 Blu-ray, NAD C542, C521 CD players, Project Debut III TT+NAD PP2, Denon DRW-585 Cassette Deck, WD TV HD
- Amps: Denon AVR 2809, NAD C372, Cambridge Audio 640
- Speakers: Monitor Audio RS6, Definitive Technology Supercube II subwoofer, Acoustic Energy Aesprit 309
- Projector: Plus U5-111 (Next on the line for upgrade), Samsung LCD LA46A550P1