Thank you for purchasing a JBL Synthesis SDP-25 Surround Sound Processor. You now have
at your command a unique product that has been designed to deliver the best possible sonic
performance regardless of the content being played, whether it is the latest blockbuster movie, a
major sporting event or your favorite music.
FEATURES
• Full suite of home theater audio formats
• Extensive connectivity options for up to twelve fully programmable audio/video sources
– Six HDMI inputs, including one on the front panel
– Two HDMI outputs, including one with ARC capability
– Composite and component video inputs for use with legacy video sources
– Five each optical and coaxial digital audio inputs and two each outputs
– 7.1 Direct audio inputs
– USB Audio input for connection to digital music servers
• Flexible control options including full-featured remote control, RS-232 and IR blaster
connections
• Software upgradeable via USB connection
• Rack ears included for custom mounting applications
INSTALLATION AND SETUP
INSTALLATION CONSIDERATIONS
To ensure optimal performance, please pay attention to the instructions in this Quick Start Guide.
• Install the SDP-25 on a solid, flat, level surface that is dry, well-ventilated and out of direct
sunlight.
• Do not place the SDP-25 directly on a carpeted surface or cover any of the ventilation holes.
• Do not install the SDP-25 on a surface that is unstable or unable to support all four feet.
• Do not install it directly above another product, and do not put another product directly on
top of the SDP-25.
• Do not expose the SDP-25 to high temperatures or humidity, steam, smoke or excessive
dampness or dust.
This Quick Start Guide is designed to give you the basic information needed to connect your
SDP-25 to the other components in your home theater system as well as to provide the basics
of setup and operation. For complete information on all that the SDP-25 has to offer please
download the full Owner’s Manual from www.jblsynthesis.com. Additional support information
may also be found in the Support Section of the JBL Synthesis web site.
Your dealer or installer is also a valuable resource and they may be able to assist you with
product questions. Of course, you may always contact JBL Synthesis Customer Service at
1-888-691-4171.
Welcome to the Synthesis family, we wish you many years of listening pleasure!
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WHAT’S IN THE BOX
Your new SDP-25 should include the following items. If anything is missing please contact your
dealer or installer before contacting JBL Synthesis as they may have used it to install your new
product:
• AC Power Cord
• Remote Control
• Batteries for the Remote Control
• Right and Left “rack ears”
• Mounting screws for the rack ears and the cover screw for the remote are packing in a small
poly bag
• This Quick Start Guide
JBL SYNTHESIS SDP-25Front Panel Controls and Indicators
FRONT PANEL CONTROLS AND INDICATORS
Information Display
Standby/On
Indicator
STANDBY
SAT/ CBLGameMediaDVRVideo1
Blu-ray
Standby/On
Switch
SDP-25 Surround Processor
Source Selectors Source
Standby/On Indicator: This LED indicator will light red when the AC mains power is applied and
the rear panel Master Power Switch is turned on. It will turn blue when the unit is turned on from the
front panel Standby/On Switch, the remote control or an external control system.
Standby/On Switch: Press this switch to turn the unit on or place it in the Standby/”Off” mode.
Input Indicators: When an input is selected by pressing a Source Selector button on the front
panel or remote, the LED above it will turn blue to confirm the choice.
Source Selectors: Press these buttons to choose the audio/video input played through the
main room system.
• The eight Source Selector buttons on the left side of the panel select from the HDMI and
analog sources connected to the rear panel jacks.
• The TV Source Selector plays the audio from a TV with Audio Return Channel capability
(ARC) connected to the HDMI 1/ARC output. There is no video associated with this source.
Note that the CEC function must be turned on for this Source to be active. (See Page 10)
• The USB Source Selector plays the audio from a computer or other compatible device
connected to the rear panel USB Audio jack.
• The Front Inputs Source Selector toggles between the devices connected to the front
panel inputs.
Front HDMI Input: Connect the HDMI output of a source device to this jack for playback and
select it by pressing the Front Panel Input Button.
Front Audio Input: Connect an audio source to this jack for playback and select it by pressing
the Front Input Button.
Infrared
Sensor
Video2
Audio
Selector
Audio
Input
Surround
Stereo
Mode
Stereo
Modes
Mode
Surround
Modes
Zone 2
Video
Zone 2
Video
Zone 2
Audio
Zone 2
Audio
VOLUME
Volume
Conrol
Video3
TVUSB FrontInputs
HDMIFRONT AUDIO
Front Audio Input
Front HDMI Input
Source
Indicators
Selectors
Information Display: This two-line LED display provides status information about your SDP-25.
The top line typically shows the input and the bottom line shows the current surround mode and
volume. When inputs are changed or the menus are in use the information shown will vary.
Infrared Sensor: The sensor behind this window received IR commands from the Remote Control.
Audio Selector: Press this button to choose between the Primary Digital, Secondary Digital or
Analog audio source in use.
Stereo Mode: Press this button to select one of these stereo playback modes:
• Stereo 2.1 plays two-channel audio with bass information going to the subwoofer
• Stereo 2.0 sends a full range audio signal to the left and right speakers and no audio to the
subwoofer
• Party Mode plays stereo sound through all speakers except the Center Channel.
• Stereo Direct sends a two-channel analog audio input directly to the volume control and
outputs without any signal processing or bass management.
Surround Mode: Press this button to toggle through the available surround modes
Zone 2 Video: When the Zone 2 Video option in the Zone 2 Setup Menu is set to "Enable",
pressing this button selects the video source for the second zone. Note that when the Zone 2
Video is active the HDMI Preview feature is not available. See page 17 for more information on
the Zone 2 system.
Zone 2 Audio: Press this button to select the audio input for the second zone. Note that the
audio format cannot be transcoded from one format to another. For example analog sources
may only be output via the analog outputs, optical digital via optical outputs, etc. See page 17
for more information.
Volume Control: Turn this knob to raise or lower the system output level.
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JBL SYNTHESIS SDP-25Rear Panel Connections
REAR PANEL CONNECTIONS
Coax Digital
Audio Outputs
Coax Digital
Audio Inputs
HDMI
Inputs
Optical Digital
Audio Outputs
Optical Digital
Audio Inputs
HDMI
Outputs
USB Audio
Input
Trigger
Outputs
Serial
Control
Port
IR Flasher
Output
Front IR Control
IR Receiver Input
Master Power
Switch
AC Power
Cord Socket
Component
Video
Inputs
HDMI Inputs: Connect the output of an HDMI source device to these jacks.
HDMI Outputs: Connect these jacks to the input of your video display based on the selections
made for Zone 2 Video in the Zone 2 Setup Menu (See Page 17):
• The HDMI 1 jack will always carry the selected input source and the menus when they
are in use.
• When the Zone 2 is set to the factory default of "Disable" it will carry the selected input with
no menu overlays.
• When the Zone 2 Video Setting is changed to "Enable", the HDMI 2 jack will output the
source selected for the Zone 2 system.
• When you will be using the Audio Return Channel (ARC) to feed audio from a source in the
TV or display, such as a streaming service, connect the output marked ARC on the TV to
the HDMI 1/ARC jack. Note that CEC Control must be turned On for ARC to operate (see
Page 10)
USB Audio Input: Connect this port to a USB jack on a computer, media server or other device
that will be feeding digital audio to the SDP-25. A driver may be required to play audio from your
computer via this Input. For more information please see the SDP-25 Support section of
www.jblsynthesis.com.
Serial Control Port: When using a serial control system connect this jack to the controller. We
recommend that this port only be used by installers knowledgeable in programming RS-232
control systems.
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Composite
Video
Inputs
Analog
Audio
Inputs
7.1 Direct
Inputs
Analog
Audio
Outputs
Front IR Control: When this switch is set to the default position of On (up) the Front Panel IR
Sensor will capture commands from the Remote Control. When you are using external remote
command receivers you may want to set the switch to Off (down) to avoid interference.
Coax Digital Audio Inputs: Connect the coaxial digital audio output of a source device to
these jacks.
Coax Digital Audio Outputs: Connect these jacks to the coaxial digital input of a digital audio
recorder to record a selected digital audio source.
Optical Digital Audio Outputs: Connect these jacks to the optical digital input of a digital
audio recorder to record a selected digital audio source.
Optical Digital Audio Inputs: Connect the optical digital audio output of a source device to
these jacks.
Trigger Outputs: These jacks provide a 12 volt DC signal to control the on/off status of
connected devices with external trigger control.
• Trigger Output A will send a signal whenever the SDP-25 is turned on. We recommend that
• Trigger Output B sends a signal to control external devices such as screens and blinds
Preamp
Outputs
this jack be used for connection to audio power amplifiers
when the Trigger B setting for any input in the Input Setup Menu is changed to On for any
input. See page 11 for more information on Trigger programming.
USB
Upgrade
Port
IR
Flasher
Input
JBL SYNTHESIS SDP-25Rear Panel Connections
IR Flasher Input: Connect the output of a modulated IR signal from a simple IR receiver to this
input to use that receiver as the remote sensor.
IR Flasher Outputs: Connect an optional, external, IR blaster to this jack to repeat IR signals
received by the SDP-25 to other devices.
IR Receiver Input: Connect the output of a de-modulated IR signal from an IR system controller
to this input to use that receiver as the remote sensor.
Master Power Switch: Turn this switch to the On position to operate the product. When it
is in the Off position the SDP-25 is disconnected from AC power and will not respond to any
controls. In normal operation this switch may be left On, but it should be turned Off when the
unit will not be used for an extended period of time such as a vacation.
Component Video Inputs: Connect the component video (Y/Pr/Pb) outputs of a source device
to these jacks.
Composite Video Inputs: Connect the composite video outputs of a source device to these
jacks.
Analog Audio Inputs: Connect the analog two-channel outputs of a source device to these
jacks.
7.1 Direct Inputs: Connect the analog 7.1 outputs of a source device such as a Bluray or DVD
player to these jacks. The “LF” and “LR” inputs may also be used as an additional two-channel
audio input.
Analog Audio Outputs: Connect these jacks to the input of a recorder or multiroom system to
play or record a selected analog audio source. Note that digital audio inputs will not be sent out
through these jacks:
• Output 1, will output an analog source playing through the main system.
• Output 2, will output the source selected for Zone 2 Audio.
Preamp Outputs: Connect these outputs to the inputs of your audio power amplifier and
subwoofer(s).
USB Upgrade Port: When a software update is available for the SDP-25 is available, follow the
instructions supplied with the download to install it through this USB port.
AC Power Cord Socket: Connect the AC power cord supplied with the unit to this socket, and
connect the power cord plug to an AC outlet.
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JBL SYNTHESIS SDP-25Information Display
Channel
Indicators
Channel Indicators: These will light to show which channels are active based on the input
format and processing that is selected. Note that the indicators respond to the audio format and
processing that is selected and audio will not be present from a channel at all times even when
they are illuminated.
Mode/Format Indicators: These indicators show which digital audio format is in use
depending on the data information available from the source..
Dolby Volume Indicator: This will show when Dolby Volume is active (see Page 15)
Information Display: These two display lines show the current status of the SDP-25. In normal
operation the top line shows the current input and the bottom line shows the surround mode.
When the output is muted or the volume is changed, that will be displayed in the lower line of
the display. Other system messages will appear in response to system status changes.
Mode/Format
Indicators
Dolby Volume
Indicator
Information
Display
Audio Source
Indicators
HDMI Indicator: This indicator will blink when an HDMI source is selected until the HDCP
"handshake" has been established or when there is no source connected to the selected input.
It will stop blinking once the HDMI source is properly recognized by the SDP.
Audio Source Indicators: These light to show the current input source when it is separate from
HDMI.
Mute Indicator: This will light when the audio is muted.
Volume Indicator: The current volume level will show here either as dB above or below
reference or as a relative number on a scale of 1 to 100. To change the volume display mode
use the Volume Units setting the in General Setup Menu. (See Page10)
HDMI
Indicator
Volume
Indicator
Mute
Indicator
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