avzombie.com

Denon has confirmed details on its extensive autumn AV receiver line-up. Key differences over last year’s models include the new ERGO remote handset (described by the brand as the most usable and stylish handset in the business); fully automatic setup and full iPod integration as an option.
They are, in detail:
The AVR-1507 (Pictured above, priced at 250 pounds)
baseline features
Discrete 7.1 amplifier with 7 x 110 W (6 ohms, 1 kHz, < .7% THD)
Auto Setup with high quality Audio Technica microphone
ERGO remote
32-Bit floating point DSP, full 96 kHz processing, 192 kHz DACs
Dolby Digital EX, DTS-ES, Dolby Pro Logic IIx, DTS-NEO:6, DTS 96/24
Audio Delay (0-200 ms), Night Mode
User Mode Function
Setup operation at front panel
Large screw type speaker connector
Front speaker A/B selectable
8 channel EXT in for future sound formats
S-Video inputs
3 component inputs (30MHz)
2 coaxial digital inputs, 2 optical digital inputs
Dock Control connector for ASD-1R dock for iPod

The AVR-1707 (above, 300 pounds)
Extra video features and front bi-amping
has all above and adds
Assignable Surround Back amplifier for Front Bi-Amping
Digital component video conversion
3 assignable component inputs (100 MHz)
7 Independent power supplies (1507 has 6)

The AVR-1907 (above, 400 pounds)
Added flexibility and power. Heavier build.
has all above and adds
120 watts per channel (6 ohms, 1 kHz, < .7% THD)
Two-line FL Dot Matrix display for RDS and iPod info
On Screen Displays for all functions including iPod
Aluminium front panel
Aluminium control knobs
3 optical digital inputs (15/1707 have 2)
Digital output
Record Out selector
Function rename
7.1 Channel pre-outs
The AVR-2307 (pictured below, 600 pounds)
Bigger power plant with HDMI switching, Multi-Room and more,
has all above and adds135 watts per channel (6 ohms, 1 kHz, < .7% THD)
1080p HD-Ready HDMI repeater and switching - 2 in and 1 out
HDMI Video conversion from all sources
A taller chassis with larger High Current power supply
Auto Setup with Room EQ (Parametric)
Pure Direct mode for music
RS232C for Crestron etc plus IR off, panel lock mode
Multizone / Multi source switching and functions
5 S-Video inputs (others have 3)
4 optical digital inputs (1907 has 3)
Phono input