Inputs and Outputs Notes
7-Channel Equal Power Amplifier:
The Denon AVR-2308CI
features a 7-channel equal power, discrete amplifier. The amplifier is rated at
100 watts x 7-channels RMS.
Digital Signal Processing (DSP):
The Denon AVR-2308CI is equipped with a
high-resolution 32-bit floating point Digital Signal Processor (DSP). All
elements of the Surround Processor are optimized to the highest standards by the
use of selected high performance and discrete components, particularly the A/D
and D/A converters and the sophisticated DSP surround decoder.
24-Bit, 192 kHz D/A
Converters: The AVR-2308CI uses 24-bit/192-kHz Digital-to-Analog
converters for all channels. The 192kHz sampling and
24-bit word length capabilities of the DACs allows you to play high-resolution
recordings and hear the increased clarity, detail and dynamic range of those
Custom Integration: The AVR-2308CI carries
the "CI" stamp, which is Denon's certification to custom installers that the
receiver has advanced connectivity and control features often required for
custom home integration and theater applications using premium control systems.
These features include a RS232C jack for use with whole house control systems,
remote in/out IR command control, and assignable +12-volt triggers.
Up-Conversion Powered With DCDi By Faroudja: The AVR-2308CI is equipped with a
flexible video switching system that converts video signals in an effort to only
require one video connection from the receiver to your TV. The video switching system
features a Directional Correlation De-interlacing (DCDi) special video processor
developed by Faroudja that involves advanced algorithms to remove the jagged
edges that appear when standard interlaced video is viewed on progressive scan
displays. DCDi converts standard interlaced signals into progressive scan
signals in order to eliminate the stair-casing effect that conventional
up-converters can introduce to diagonal edges. Unlike most other conversion
circuits, this receiver will convert analog signals from composite video,
S-Video, and component video to HDMI up to 1080p.
Composite Video: can be
converted to S-Video, component video, or HDMI
S-Video: can be converted
to composite video, component video, or HDMI
Component Video: can be
converted to composite video, S-Video, or HDMI (480i signals only when down
Note: Video signals
input as HDMI must be output via HDMI.
This receiver incorporates a wide variety of surround modes to bring you maximum
enjoyment from your audio and video software. The surround modes include:
Dolby Digital: Dolby
Digital is a 5.1 multi-channel digital surround format.
Dolby Digital EX: Dolby
Digital EX is a 6.1 multi-channel digital surround format.
Dolby Pro Logic II: Dolby Pro Logic II technology processes any high
quality stereo (two-channel) movie and music audio into five playback
channels of full-bandwidth surround sound. A matrix surround decoding
technology, Dolby Pro Logic II detects the directional cues that occur
naturally in stereo content and uses these elements to create a five-channel
surround sound playback experience. You can choose from the following Dolby
Pro Logic II formats - Cinema, Music, or Game.
Dolby Pro Logic IIx:
Pro Logic IIx expands any existing
stereo- or 5.1-channel audio for a 6.1- or 7.1- channel playback, creating a
seamless, natural surround soundfield that immerses you in the entertainment
experience. You can choose from the following Dolby Pro Logic IIx formats -
Cinema, Music, or Game.
DTS Digital Surround: DTS Digital Surround is a 5.1
surround sound format used for both commercial/theatrical and consumer grade applications.
DTS-ES Extended Surround:
DTS-ES features two 6.1 multi-channel formats.
DTS-ES Discrete 6.1: DTS-ES Discrete 6.1-channel is a 6.1-channel discrete digital audio
format adding a surround back channel to the DTS digital surround sound.
DTS-ES Matrix 6.1:
DTS-ES Matrix 6.1-channel is a discrete 6.1 channel digital audio format
inserting a surround back channel to the DTS surround sound through
DTS Neo:6 Surround: DTS
Neo:6 is a matrix decoding technology for achieving 6.1-channel surround
playback with 2-channel sources. You can choose from two DTS Neo: 6 Surround
formats - Neo: 6 Cinema and Neo: 6 Music
DTS 96/24: DTS 96/24 is a
digital audio format enabling high sound quality playback in 5.1-channels
with a sampling frequency of 96 kHz and 24 bit quantization of DVD-video.
Combined Surround Modes: The receiver features
several combined modes using existing Dolby and Digital Theater Systems
(DTS) surround modes:
Dolby Digital+Dolby Pro
Logic IIx (Cinema and Music)
DTS+Dolby Pro Logic IIx
(Cinema and Music)
Neural Surround: Neural Surround has
been adopted by XM Satellite Radio for digital radio broadcasts of XM HD
Surround recordings and live events in surround sound. Neural Surround
employs psychoacoustic frequency domain processing which allows delivery of
a more detailed sound stage with superior channel separation and
localization of audio elements.
Denon Original Surround (DSP) Modes:
Rock Arena: this mode
is for enjoying the atmosphere of a live concert in an arena
Jazz Club: this mode
is for enjoying the atmosphere of a live concert in a jazz club
Mono Movie: this mode
is for playing monaural movie sources with surround sound
Video Game: this mode
is suited for achieving surround sound with video games
Matrix: this mode lets
you add a sense of expansion to stereo music sources
Virtual: this mode is
for enjoying surround effects using only the front speakers or
7CH Stereo: this mode
is for enjoying stereo sound from all speakers
Surround Parameters: You can adjust the following surround
CINEMA EQ (Cinema Equalizer):
The Cinema EQ function gently decreases the level of the extreme high
frequencies, compensating for overly-bright sounding motion picture soundtracks.
Select this function if the sound from the front speakers is too bright. This
function only works in the Dolby Pro Logic (including PL II and PL IIx), Dolby
Digital, DTS Surround, DTS Neo:6, and Wide Screen modes.
D.COMP (Dynamic Range Compression): Motion picture soundtracks have tremendous dynamic range (the contrast between
very soft and very loud sounds). For listening late at night, or whenever the
maximum sound level is lower than usual, the Dynamic Range Compression allows
you to hear all of the sounds in the soundtrack (but with reduced dynamic
range). This only works when playing program sources recorded in Dolby Digital
or DTS. You can select one of the four settings: "OFF", "LOW", "MID" (middle),
or "HI" (high).
LFE: This setting adjusts
the low-frequency effects level (LFE). You can adjust the LFE from -10 to 0
Center Image: This
function assigns a center channel signal to the front left and right
channels for wider sound. You can adjust the center image range from 0.0 to
0.3 to 1.0.
Panorama: This feature
assigns front left and right signals to surround channels for wider sound.
You can turn this feature On or Off.
Dimension: This settings
shifts the sound image from the center to the front or rear to adjust
playback balance. You can select from 0 to 3 to 6.
Center Width: This
function assigns a center channel signal to the front left and right
channels for wider sound. You can select from 0 to 3 to 7.
Delay Time: This feature
adjusts the delay time to control the sound stage size. You can select
either 0 to 30ms to 300ms.
Effect Level: This
function adjusts the effect signal level from 1 to 10 to 15.
Room Size: This feature
determines the size of your acoustic environment. You can select from Small,
Medium small, Medium, Medium large, or Large.
AFDM: This feature
auto-selects the surround mode by the connected source's content.
SB CH Out (for multi-channel
sources): This setting selects the playback mode for the surround back
channels of the receiver. You can choose from Non Matrix, Matrix, PLIIx
Cinema, PLIIx Music, ES Matrix, ES Discrete or Off.
SB CH Out (for 2-channel
sources): You can select either On or Off for the surround back channels
when listening to a 2-channel source.
Tone Settings: You can
independently adjust the system's overall Bass and Treble settings from -6 to +6
dB. These settings can be set for the main zones, as well as zones 2 and 3.
Night Mode: This mode is
optimized for late night listening. You can select from the following Night
Modes - Low, Middle, High or Off.
Restorer: This function
restores compressed audio signal to how they were before compression and
corrects the sense of volume of the bass to obtain richer playback sound. You
can select from one of the following modes - Mode 1, Mode 2, Mode 3 or Off.
are three 2-channel playback modes exclusively for music:
plays back music with an extremely high level of sound quality. All the
video-related circuits are turned off so that music signals are reproduced
with high quality. When an analog mode is selected, the digital processing
circuits are also turned off to achieve the highest purity.
Direct: audio signals
bypass the tone control circuits, and are transmitted directly, resulting in
good quality sound
allows you to adjust the tone to achieve the desired sound
receiver has a personal memorize function that automatically memorizes the
surround modes and input modes selected for the different input sources. When
the input source is switched, the modes set for that source last time it was
used are automatically recalled. The surround parameters, tone control settings,
and playback level balance for the different output channels are memorized for
each surround mode.
Auto Setup: The receiver is equipped with an Auto Setup and Room Equalization function, to
achieve the most ideal sound field for your room.
The AVR-2308CI's Audyssey MultiEQ
function is designed to optimize the sound quality at each listening position in
the room. The included DM-A405 microphone is used to measure test tones at each
listening position. This measured data is then analyzed using a program to
improve acoustic characteristics in the listening area. For best results at
least 6 positions should be measured, including a main position. The main
position is given more weight in the calculations. The Audyssey function adjusts
the following measurements automatically: Speaker Configuration, Distance,
Channel Level, Crossover Frequency, and Room EQ.
The Room EQ function offers the following adjustments:
Audyssey: Adjusts the
frequency response of all speakers to correct the effects of room acoustics.
Audyssey Byp. L/R: Optimizes
frequency response of speakers except front speakers to match room acoustics.
Audyssey Flat: frequency response
of all speakers are flat.
Manual EQ: This feature
adjusts the tonal quality for each speaker using the receiver's built-in
graphic equalizer. You can select -20 to +6 dB for the following frequencies
for each speaker - 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2khz, 4kHz, 8kHz, and
Off: Turns equalizer off.
can adjust the cutoff frequency of the subwoofer output from 40Hz, 60Hz, 80Hz,
90Hz, 100Hz, 110Hz, 120Hz, 150Hz, 200Hz or 250Hz. You can also select the
subwoofer output level between 0, 5, 10 or 15 dB.
Amplifier Assign: There are
seven amplifier channels built into the receiver. These channels are typically
used for 7.1 channel surround in the main room, but the amplifier assign
function gives you the option of configuring the system differently if you
prefer. The amplifier features four different amplifier assignment
Bi-Amp Connections: Certain
loudspeakers are equipped with two sets of input terminals for bi-amplification.
The receiver's Power Amp Assign mode allows you to power bi-amp capable speakers
with two amplifier channels. The front speakers can be powered by either the
Front "A" or Front "B" and the Surround Back/Zone 2 speaker outputs.
Dual Zone/Dual Source Operation: Denon's
Dual-Zone/Dual-Source function lets you select different
audio/video sources for listening and viewing in different locations of your
home. The AVR-2308CI features a Main Audio/Video Zone (Zone 1) and an Audio Only Zone (Zone
2). The Main Audio/Video Zone 1
contains 7.1-channel playback of your audio/video gear in your main
entertainment room. The Audio Only Zone 2 allows you to play a stereo
audio source connected to the receiver in a 2nd room of your house
via left/right RCA audio or speaker terminal output connections.
Note: Zone 2 features either a preamp-output or speaker terminal output so you can use
this amp or a separate amp to power speakers in another room. When using the
AVR-2308CI to power speakers in a second room of your home, the main zone is
restricted to 5.1-channel at the same time. When using the receiver's
preamp output terminals for the second room you need an additional amplifier
in that room to power those speakers while the main Zone of the
receiver remains 7.1-channel.
iPod Compatibility: Using the optional Denon ASD-1R iPod dock (033ASD1RBK or 033ASD1RWT), you can connect your iPod to
the AVR-2308CI. Folder and file names appear on the receiver's display panel.
The iPod can be controlled using the buttons on the main unit and the remote
control. In addition, you can view photo and video data stored on an iPod on a
TV or monitor. The AVR-2808CI also supports Denon's optional iPod/Network
adapter docks (ASD-3N/ASD-3W, sold separately) through its iPod terminal.
Note: The ASD-1R is compatible with
3rd generation and later iPods with a dock connecter.
AM/FM Tuner: The receiver
features an AM/FM tuner which allows you to preset up to 56 radio stations (8
stations each in 7 separate banks). You can delete any unused tuner banks.
XM Ready: With the optional XM
Mini Tuner and Mini Tuner Home Dock, you can enjoy the variety and sound quality of XM Satellite radio. XM offers over 150 channels
of music, news, sports, and talk radio and even has weather and traffic
information in several major markets. The channel number, channel name, artist
name, and song title are listed on the AVR-2308CI's display and on the connected
TV monitor. XM stations are stored as presets and recalled in the same way AM
and FM stations are. A subscription to XM Satellite Radio is required.
The audio signal can be delayed, from 0-200ms, to match the video signal.
Volume Setting: You can set a
maximum volume level of 0, -10, or -20 dB to limit the receiver's total volume
output. You can also indicate a Turn-On Volume setting from -80 to +18dB or Last
(whatever volume you used last before turning the unit Off).
You can set the amount of attenuation for the audio muting circuit from -40dB or
-20dB from the present volume level.
Source Delete: You can delete
inputs you are not using from the receiver's display and on-screen menu to make
accessing your connected sources quicker and easier.
Last Function Memory: This unit is equipped with a last function memory, which stores the input and
output setting conditions as they were immediately before the power was switched
The unit is also equipped with a back-up memory. This function provides
approximately one week of memory storage when the main unit's power switch is
off and the power cord is disconnected.
On-Screen Display (OSD): The OSD menu can be
displayed on your television for easy system setup. The OSD menu is sent through all
monitor outputs (composite video, S-video, component video, and HDMI).
Dimmer: The receiver features 4
display brightness settings - Bright, Dim, Dark or Off.
Control (RC-1080): The AVR-2308CI comes
with a main remote control that can operate the receiver as well as other remote
control capable Denon components. It is pre-programmed with
control signals for other brand products; including DVD players, VCRs, TVs,
cable boxes, satellite receivers, CD players, CD recorders, MiniDisc
players/recorders, and cassette decks
Sub/Dual-Zone Remote Control (RC-1084):
The receiver's sub remote control unit is equipped with frequently used buttons,
so it can be used for simple remote control unit operations. The sub remote
(RC-1084) can also be used for dual zone, so you can use it to control the
AVR-2308CI from other rooms with an optional IR repeater kit. The following operations can be performed using
Switching the input source
Adjusting the volume
Tuner (AM/FM), XM, and iPod
Zone power on/off
Note: It is not possible to operate
devices other than the amplifier with the Sub/Multi-Zone remote.
Inputs and Outputs Notes
Rear Panel Connections: The
following connections are found on the rear panel of the receiver.
HDMI Inputs/Output: This
unit has 2 HDMI version 1.3a inputs and 1 HDMI version 1.3a output. The HDMI inputs are assignable to different
input sources. The HDMI jacks support HDCP copyright protection and are
compatible with 30 and 36 bit Deep Color and xvYCC technology.
Inputs/Output: The receiver features 3 component video inputs and 1
component video output. The component video inputs are assignable to
Inputs: The AVR-2308CI features 2 optical digital (Toslink) inputs and 3 coaxial digital
inputs. Each input can be assigned to any of the different input sources except Phono and Tuner. Optical Digital Input
2 also has a corresponding Optical
Digital output for use with a CD, MD or other digital recording device.
Multi-Channel Input: The AVR-2308CI is equipped with a 7.1-channel input to accommodate present and future
Speaker Terminals: All of the receiver's speaker terminals are binding posts.
They are not 5-way binding posts because a plastic collar prevents their use
with spade lugs and they are positioned too far apart to be used with dual
XM: This proprietary terminal
allows you to connect and optional XM Mini Tuner and Mini Tuner Home Dock.
iPod Connection Terminal: You can connect and play an
iPod that has Apple's Dock connector using the optional Denon ASD-1R iPod
dock (033ASD1RBK, 033ASD1RWT) or iPod network dock (033ASD3N, 033ASD3W).
RS-232C Port: The AVR-2308CI includes an
RS-232C port for connection to external whole-house
control systems, from companies such as AMX, Crestron, and
others, and provides a software/firmware upgrade pathway.
Room-to-Room Remote Jacks: The receiver has a mini-jack input
for use with an optional Denon RC-616, 617, or 618 IR
re-transmitter. The adjacent room-to-room output is for future use.
12V Trigger Output: The
AVR-2308CI has a mini-jack output to
send a 12-Volt DC "turn-on" signal to another component that accepts a 12V
trigger, such as a power amplifier.
Front Panel Connections: The
following connections are found on the front panel of the receiver behind the
unit's fold-down door.
A/V Inputs: The receiver
features a front panel S-video, a Composite-video, a pair of Left/Right
RCA-audio, and one Optical digital input on the front panel behind the
unit's fold-down door.
Headphone Jack: The receiver has a standard 1/4" headphone jack on the front panel, positioned
behind the fold-down panel.
Setup Mic: 3.5mm input for
connection of supplied setup microphone.