Denon's receiver demos made good use of Dynamic Volume technology licensed from Audyssey. If the dynamics of action movie soundtracks are too much for you, you'll like the way Dynamic Volume keeps voices constant but curbs the more brutal excesses of effects -- by monitoring the signal, not just the room. If you watch TV programs via your receiver, it'll help tame those blaring ads too. Dynamic Volume is available as a firmware upgrade for some existing models. New models shown by Denon included the two-zone/two-source AVR1909, 90 watts times seven; the AVR989, 115 watts; the AVR889, 100 watts; and the AVR789, 90 watts. All have onboard decoding for Dolby TrueHD and DTS-HD.