CD Changer Controls
Overview: The Kenwood KDC-X791
AM/FM CD receiver features a fold-down-detachable face, rear auxiliary input, 3
sets of 4-volt preamp outputs, CD changer and Satellite radio controls, Bluetooth and iPod ready functions, as well as a rear panel USB connector, plus AAC/MP3/WMA/WAV playback.
The CD player comes with a soft face case and an IR wireless remote control. The unit's
is rated at 22 watts x 4 channel RMS and 50 watts x 4 channel peak.
Fold-down Detachable Face:
The unit features a fold-down face that detaches from the chassis to deter
theft. There is a red indicator light that will flash on the unit after the face
has been removed to warn potential thieves. You can turn this flashing LED on or
off. The CD player comes supplied with a soft black fabric, draw string face
case to protect the detachable face when you have it off the chassis. You must
fold the face down before inserting or eject a disc.
64-Color FL Display With Graphics:
The unit utilizes a large 64-Color Fluorescent display that features still
and motion graphics. You can choose from six display layouts as well as between
two motion clips, six wallpaper images and a wallpaper scan mode.
- Display Layouts:
- A: consists of status
display and graphic display
- B: consists of status
display, graphic display and text display
- C: consists of status
display, upper, lower and middle text displays and text icons
- D: consists of status
display, upper, lower and middle text displays and source icon display
- E: consists of status
display, text display, and graphic display
- F: consists of
- Motion Clips:
- 1: underwater dolphin
- 2: two racecars with
- Wallpaper Images:
- 1: butterfly
- 2: racecar
- 3: beach
- 4: birds
- 5: elephants
- 6: dolphins
- Wallpaper Scan: scans
through all the wallpaper images in 5 second intervals
Graphic Motion Analyzer: This
unit is equipped with a sensor that measures the forces of gravity on the
vehicle. This sensor enables the receiver to calculate G-forces during
acceleration, braking, and cornering. The G-Analyzer also has a stop watch that
can be automatically started when forward or reverse G-forces are detected.
Setup and calibration for acceleration and braking must be performed before
using the G-Analyzer. The Graphic Motion Analyzer offers you 5 graphic displays
to choose from: G-Graphic, G-Meter, G-Counter and Stop Watch, along with a
HorsePower function that measures and records the max horse-power of your car.
You can specify what type of vehicle you are driving to calibrate the G-Analyzer
by selecting from the following choices - Mid Size, Full Size, SUV, Van, Pickup
Truck, Sporty or Compact. The GMA's information can be viewed as numerical data
or enhanced graphics on the head unit's display.
Note: The HP or G value
measured by this unit may not be completely accurate due to its simplified
method of measurement. The G-Analyzer is only for reference and should not
be used to confirm the horsepower specifications of your vehicle.
AAC/MP3/WMA/WAV Playback: The
can play MP3, WMA, WAV and AAC files with ID3 tag information recorded on CD-ROM, CD-R, and CD-RW discs in ISO9660
Level 1/Level 2, Joliet, Romeo and Long file name formats.
24 Bit D/A Converter: The
Kenwood KDC-X791 utilizes a 24-bit digital to analog converter for superior CD
Supreme Setting: When MP3 or
WMA files encoded at a low bit rate (less than 96 kbps, 44.1k, 48kHz) are
played, the Supreme Setting function restores their high frequencies so the
sound quality is closer to files encoded at a high bit rate. The processing is
optimized for the compression format and the bit rate used. When the Supreme
Setting is Off, the unit plays the original sound stored in the audio file.
AUX Input: The KDC-X791 is
equipped with a rear panel 3.5mm minijack auxiliary input for connecting
external portable audio devices such as an MP3 player or Tape walkman. The
receiver allows you to turn the Auxiliary input On our Off so you don't have to
scroll through that source if you are not using it.
Auxiliary Display: The
KDC-X791 allows you to select the source type displayed when using the
auxiliary input. You can choose from AUX, DVD, Portable, Game, Video or TV.
Dual Zone: The Dual Zone mode
allows you to output the Main source and the Auxiliary input separately for the
front and rear channels. You can select whether the auxiliary input will play in
the front or the rear.
3-Sets of 4V Preamp Outputs:
The KDC-X791 features front, rear and subwoofer 4V preamp outputs. The Subwoofer
preamp output can be turned On or Off and adjusted independently. The front and
rear speaker preamp outputs are balance and fade adjustable. The subwoofer
preamp output is non-fading. All the preamp outputs are attached to the chassis
by a 7.5" pigtail.
Built-In Amp Setting: If you
are using external amplifiers to power all of your vehicle's speakers you can
turn the unit's built-in amplifier off to enhance the player's preamp output
Front and Rear High-Pass Filter:
The KDC-X791 features an independent High-Pass Crossover for the front and rear
channels. You can adjust the high-pass crossover from through, 40, 60, 80, 100, 120,
150, or 180, 220Hz. The "Through" selection is a full-range setting. This feature is
very helpful when you have smaller-type speakers in the front and larger-type
speakers installed in the rear of the vehicle.
Low-Pass Filter: The receiver
features a built-in Low Pass Filter control for the preamp-output when the
Subwoofer Output is "on". You can select from 50, 60, 80, 100,120Hz or Through.
The "Through" setting allows your external amplifier's crossover network to do
all the filtering for your subwoofer.
Subwoofer Level: Once you have
switched the Subwoofer Output to "on" you can independently control the
subwoofer preamp output level from the CD receiver. You select levels between
-15 to +15.
Subwoofer Phase: You can adjust
the phase of the subwoofer output between 180-degrees (Reverse) or 0-degrees
Speaker Settings: The Speaker
Setting function tailors the System Q Sound Control settings according to the
type of speakers in your vehicle. You may select a Speaker Setting of "SP Off"
(flat), "SP OEM" (for OEM factory speaker systems), "SP 6x9/6" (for systems with
6" and 6"x9" speakers), or "SP 5/4" (for systems with 4" and 5" speakers).
Note: The Speaker
Setting affects the bass, midrange, and treble values of the System Q
presets. The speaker setting should be selected first.
System Q Sound Control: Six
curves are preset into memory, allowing you to recall the best preset EQ curve
for different types of music. Each
preset has its own level settings for bass (100Hz), midrange (1kHz), and treble
(10kHz). The 6 preset curves with their respective bass, mid, and treble levels
are as follows:
- Rock: Bass +6, Mid +1,
- Pops: Bass +3, Mid +2, Treble +6
- Easy: Bass +6, Mid 0, Treble -2
- Top 40: Bass +3, Mid +1, Treble +8
- Jazz: Bass +5, Mid +2, Treble +2
- Natural (Flat): Bass 0, Mid 0, Treble 0
Note: The above values
reflect the System Q settings when the Speaker Setting function is
turned off. When the Speaker Settings are selected, the System Q level
settings are different.
Bass/Treble/Mid Control: The
KDC-X791 features independent Bass, Treble and Midrange control. You can adjust
each one from -8 to +8db.
Detail Audio Control: The
Detail Audio Control allows you to adjust the following settings for the Bass,
Treble and Mid levels.
- Bass Level:
- Frequency: 40/50/60/70/80/100/120/150 Hz
- Bass Extend: On/Off
(when this feature is set to "On", the low frequency response is
extended by 20%)
- Mid Level:
- Q-Factor: 1.0/2.0
- Treble Level:
- Frequency: 1.0/12.5/15.0/17.5 kHz
Bass Management System (B.M.S.):
This unit is equipped with an interface (pink/black wire in the wiring harness)
which controls certain special features of B.M.S.-equipped Kenwood eXcelon
amplifiers. This unit, when properly connected, can remotely activate and adjust
the amount of bass boost in the amplifier. You can choose between +6dB, +12dB,
or +18dB bass boost, or flat (no boost). In addition, you can lower the bass
boost center frequency by 20%, switching between "Normal" and "Low".
Loudness: The Loudness feature
compensates for low and high tones during low volume. You can turn this feature
either on or off. Only the low tone is compensated for when the tuner is
selected as a source.
Volume Offset: The level of
each source may be independently adjusted to prevent radical leaps in output
volume when switching from one source to another. The available settings range
from -8 to 0.
Rotary Volume Control: The CD
receiver uses a rotary volume control that increases and decreases the volume of
the stereo from 0 to 35. The rotary knob also controls other audio settings such
as Bass, Treble and preset EQ settings.
Multi-Control Wheel: The
Kenwood receiver also features a Multi-Control Wheel, that when used with an
iPod, lets you control all operations via a single control knob just as smoothly
as the iPod's scroll wheel.
Attenuator: The CD receiver
features an Attenuator button that turns the volume down very quickly with one
touch of one button.
Source Tone Memory: This feature allows you to store System Q bass, middle and treble tone settings
for each source (CD, FM, AM and Aux).
Station/Disc Naming: The unit
allows you to attach an 8-character title to a radio station or a CD. The unit
can memorize up to 30 FM/AM station names and 10 CD names.
Text/Title Scroll: The KDC-X791 will display CD text, Audio file text and Satellite and HD radio
text. You can turn the
scrolling feature "on" to scroll longer titles across the screen.
Last Position Memory: If the unit is shut off or switched to the tuner mode while a CD is playing, the
next time CD is selected as the source, playback will resume from the point
where it left off.
CD Force: When there is a
problem with playing a CD with a special format, this setting plays the CD by
force. Some CDs still may not play in the CD Force mode.
CR-2 Advanced Tuner: This unit
uses Kenwood's CR-2 Advanced tuner for clear radio reception. You can choose one
of three tuning modes: Auto 1 (seek tuning), Auto 2 (cycles through and tunes
the selected band's preset stations only with each button press), or Manual.
Auto Memory Tuning: Not only
does the CD receiver's tuner allow you manually enter your desired presets you
can choose to have the unit automatically put stations with good reception in
the memory banks automatically; this is a handy feature when traveling. The
tuner features 3 FM banks (1, 2, 3) and 1 AM bank. You can store 6 presets for
each AM/FM bank giving you a total of 18 FM presets and 6 AM presets.
Clean Reception System Circuit
(CRSC): This circuit controls multi-path distortion by reducing stereo
separation. As stereo separation is reduced, multi-path has less effect on the
radio signal, improving reception in areas with tall buildings and mountains.
The CRSC circuit can be turned on or off.
Tel Mute: The KDC-X791
features a cell-phone mute wire (brown) in its harness that when hooked up to
your car's phone system mute wire will automatically mute the receiver's audio
signal when a call comes in.
Beep Tone: The CD player
features a touch sensor tone that beeps when you have selected a function of the
unit. You can turn the beep tone ON or Off.
Security Code: You can enter a
4-digit security code which must be used when the unit is removed from the
vehicle, or the constant power source is disconnected from the unit. When
constant power is restored to the unit, the security code must be entered before
the unit becomes operational.
Display: When the unit is in Standby mode, the face/button illumination
is "keyed." In addition, while the unit is in Standby mode, you can turn the
clock display on or off. When the Clock Display is turned on and the unit is in
Standby mode, the Clock Display is also "keyed." Pressing and holding the source
button turns the unit off completely.
Date Adjustment: You can enter
the current date into the head unit's memory to help you keep up with what day
it is while you are on the road.
Display Illumination Control: This function turns off the display when have not performed an operation for 5
seconds. This is effective for when you are driving at night.
Dimmer: The dimmer function
will dim this unit's display automatically when the vehicle light switch is
turned On when you connect orange/white Illumination wire of this player.
Remote Control: The KDC-X791
comes with the RC-547 IR wireless remote control with a full numeric keypad. The
remote will control Audio, CD, Tuner, Satellite, HD radio and Dual Zone functions. It is
powered by 2 "AA" batteries (supplied). The dimensions of the remote are: L =
5.362", W = 1.962", D = 1.115".
Steering Wheel Remote
Compatibility: The KDC-X791 has a "steering remote control" lead on the back
panel. When used with the optional SWI-JACK interface (item number 127SWIJACK), you
can retain the use of your steering wheel and/or rear seat radio controls when
replacing the factory head unit in select vehicles. The SWI-JACK is compatible
with over 95% of the vehicles made from 1986 to the present. Compatible vehicles
include many Acura, Audi, BMW, Buick, Cadillac, Chevrolet, Chrysler, Dodge,
Ford, GMC, Honda, Hummer, Infiniti, Isuzu, Jaguar, Jeep, Kia, Land Rover, Lexus,
Lincoln, Mazda, Mercury, Mini, Mitsubishi, Nissan, Oldsmobile, Plymouth,
Pontiac, Saab, Saturn, Suzuki, Toyota, and Volkswagen vehicles and Harley
Davidson motorcycles. Please consult "What Fits My Car" to see if your vehicle
External Device Controls
USB Port: The Kenwood KDC-X791
features a rear panel 2.0 USB type-A port that is attached to the chassis with a
39" cord to allow for various placement options during installation. The USB
port enables connection to portable USB mass-storage players, USB thumb drives
and audio control of MP3 player. The USB port is compatible with all USB mass
storage class devices that support the FAT16 or FAT32 file system. A single or
multi-slot card reader can also be connected the USB port, allowing your music
to be put neatly into different types of memory cards.
iPod High-Speed Connection: The
USB port and AUX input are also compatible with iPod devices when used with the
optional KCA-iP200 adapter (part number 113IP200, sold separately). The USB Direct
Connection enables high-speed iPod data communications of 12MB/bps via the
optional KCA-iP200 (2-Wire) interface. One end of the cable plugs directly into
your iPod's dock connector while the other end of the cable uses two connectors
that plug into the back of the headunit. The USB type-A connector portion of the
cable plugs into the receiver's USB port and handles the control and charging of
your iPod, so you can navigate through your music files using the headunit's
controls and view song info on it display. The 3.5mm miniplug connector portion
of the cable plugs into the Auxiliary 3.5mm input on the receiver and transfers
the music from your iPod to your Kenwood CD player. By using the Auxiliary input
the music travels to the receiver as an analog signal, so you can even play the
Digital-Rights-Protected files you've stored on your iPod. The controls of the
KDC-X791 are seamless when used with the optional KCA-iP200 and include metadata
browsing and playback of DRM contents, as well as the ability to choose any iPod
playback mode to suit your listening application.
HD Radio Ready: With an optional Kenwood HD Radio tuner (item #
113KTCHR20), you will be able to receive digital AM/FM broadcasts from local
stations where available. This new technology will significantly improve audio
quality and reception, as well as include information such as artist name and
song titles or traffic news, viewable on the receiver's display.
Radio Ready: There are several
options for connecting an optional XM or SIRIUS Satellite Radio receiver to
- XM Satellite Radio: To receive XM
Satellite Radio, you can connect the optional CNP2000UC XM Mini Tuner
and the CNP-KEN1 Kenwood adapter cable (package item number 700XMKEN1).
To receive SIRIUS Satellite Radio, you can
connect the optional
SC-C1 SiriusConnect vehicle tuner (item number 607SCC1) and the
Kenwood/SIRIUS adapter (item number 113KCASR50).
Select dock-and-play and portable SIRIUS radios can be controlled using
the Kenwood/SIRIUS adapter
(item number 113KCASR50)
SC-VDOC1 dock (item number 607SCVDOC1).
- Auxiliary Input:
A portable satellite radio receiver, such as the Delphi SkyFi3 or SIRIUS
Sportster, can be connected to the head unit via the auxiliary input
(adapter may be required).
A subscription is also required to receive
satellite radio programming from SIRIUS or XM.
Bluetooth Ready: The unit is
also Bluetooth compatible using the optional Kenwood KCA-BT200 Bluetooth
adapter. Using this adapter you can make and answer phone calls from the Kenwood
headunit. You can even download your Phonebook information from your compatible
mobile phone into the headunit. You are able to register up to five compatible
Bluetooth cell phones when using the KCA-BT200 adapter.
Changer Controls: This unit is directly compatible with Kenwood changers
manufactured in 1998 or later. If the changer has an O-N switch, the switch will
need to be set to the "N" position. In addition to basic disc navigation features, this
unit has the following changer controls: direct disc access (using the remote),
direct track access (using the remote), track intro scan, track repeat, disc
repeat, disc random, and magazine disc random. When connected to a CD Text capable CD changer or
an MD changer, this unit can display disc and track titles for discs encoded
with disc and track title information. The text information can be scrolled
manually or automatically.
Rear Auxiliary Input "Ready": The unit already features a rear panel auxiliary
input, but if you need a second auxiliary input, another one can be added to the rear of
the unit. When used with an optional adapter, this unit can accept a rear input
from an auxiliary source. When the CA-C1AUX adapter (item 113CAC1AX) is used,
you cannot connect a CD changer to the head unit because the adapter plugs into
the DIN changer control connection on the head unit. When the KCA-S220A
2-changer switch (item
113KCAS220) is used, you can connect a CD changer and an auxiliary audio source
at the same time. When an auxiliary audio source is connected, you can choose
from one of six names for the source: Aux Ext, TV, DVD, Video, Game, or
Supplied Software: The KDC-X791 comes
supplied with the Kenwood Music Editor Version 1.0.0 CD-ROM. Kenwood Music
Editor is a desktop software that helps organize, manage and transfer music
files to your USB devices from your PC. Automatic Playlist Generation is another
function of this software which analyzes each song based on the tempo/spectrum
distribution and categorizes them into familiar genres such as POP, Rock,
- Operating System:
- Microsoft Windows XP Professional
- Microsoft Windows Home Edition SP2 or
- Other Programs:
- Microsoft .Net Framework 2.0
- QuickTime 7 or later (when using AAC
- Windows Media Player 10
- PC (with display and other peripherals)
with Pentium III 800MHz or above (or equivalent) CPU an can run the
- 256MB or more RAM
- Hard disk with at leas 100MB free space
- CD-ROM drive (CD-R/RW drive when writing
- USB interface (2.0/1.1)