Velodyne DD-10+ User manual

SET UP
USER’S MANUAL
Digital DrivePLUS
DD-10+, DD-12+, DD-15+ and DD-18+

Enjoy.
We here at Velodyne want to thank you for selecting our product.
Get ready to experience the highest quality and amazing low-distortion
bass that Velodyne is world famous for. Relax as you enhance your
home entertainment experience with our easy setup instructions.
Welcome . . . enjoy your new Velodyne!

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SAFETY NOTICES
INTRODUCTION
Read What You Need To
Manual Conventions
PART ONE - OPERATE
Introduction
Controls & Connections
Cabinet Front
Remove Subwoofer Grille
Install Subwoofer Grille
Cabinet Back Panel
Remote Control
Features
Audio Presets
Night Mode
Active, Inactive & 12V Trigger Power Modes
Light Mode
Protection Circuitry
230V Users & TV Interface
RS-232 Serial Commands for
Controlling Subwoofer
PARTTWO - CONNECT
Subwoofer Connections
Dual Inputs
PART THREE - OPTIMIZE
Introduction
Optimization Methods
Place & Play
Self-EQ
Auto-EQPLUS (Recommended)
Manual-EQ
Choose Optimization Method & Options
Optimization Options
Optimize for Audio Genres
Optimize for Your Room
Optimize for Your Audio System
Optimize for Your Listening Preferences
Optimize for Subwoofer Placement
Choose Interface to use with
Manual-EQ Optimization
Optimization Parameters EQ
Optimization Parameters
Parametric
Recommended Parametric Adjustment Order for
Maunal-EQ Optimization
RESOURCES
MAINTAIN
Protect Subwoofer from Damage
Clean
Troubleshoot
Update Software
Windows®Setup Program Software
Service
Packaging
Waranty
SPECIFICATIONS
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Digital DrivePLUS User’s Manual
SAFETY NOTICES
SAFETY NOTICES
CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified
service personnel.
THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL is intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
THE EXCLAMATION POINT SYMBOL is intended to alert the user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the subwoofer.
1. READ INSTRUCTIONS — All safety and operating instructions should be read before the product is operated.
2. RETAIN INSTRUCTIONS —The safety and operating instructions should be retained for future reference.
3. HEED WARNINGS — All warnings on the product and in the operating instructions should be adhered to.
4. FOLLOW INSTRUCTIONS — All operating and use instructions should be followed.
5. WATER AND MOISTURE — The product should not be used near water — for example, near a bathtub, washbowl, kitchen sink, laundry
tub, in a wet basement, near a swimming pool or the like.
6. CARTS AND STANDS — The product should be used only with a cart or stand recommended by the manufacturer.
7. WALL OR CEILING MOUNTING — The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
8. VENTILATION — The product should be situated so that its location or position does not interfere with its proper ventilation. For example,
the product should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or placed in a built-in
installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
9. HEAT — The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products that
produce heat.
10. POWER SOURCES — The product should be connected to a power supply only of the type described in the operating instructions or as
marked on the product.
11. GROUNDING OR POLARIZATION — This product may be equipped with a polarized alternating-current line plug (a plug having one
blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug
fully into the outlet, try reversing the plug.If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not
defeat the safety purpose of the polarized plug.

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Digital DrivePLUS User’s Manual
SAFETY NOTICES
12. POWER-CORD PROTECTION — Power-supply cords should be routed so that they are not likely to be walked on or pinched by items
placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point at which they exit from
the product.
13. CLEANING — The product should be cleaned only as recommended by the manufacturer.
14. NONUSE PERIODS — The power cord of the product should be unplugged from the outlet when left unused for a long period of time.
15. OBJECT AND LIQUID ENTRY — Care should be taken so that objects do not fall and liquids are not spilled onto the enclosure.
16. DAMAGE REQUIRING SERVICE — The product should be serviced by qualified service personnel when:
a. The power-supply cord or plug has been damaged.
b. Objects have fallen or liquid has been spilled into the product.
c. The product has been exposed to rain.
d. The product does not appear to operate normally or exhibits a marked change in performance.
e. The product has been dropped or damaged.
17. SERVICING — The user should not attempt to service the product beyond what is described in the operating instructions. All other
servicing should be referred to qualified service personnel.
18. LIGHTNING — For added protection for the product during a lightning storm or when it is left unattended and unused for long periods of
time, unplug it from the wall outlet.
19. OVERLOADING — Do not overload wall outlets, extension cords or integral convenience receptacles as this can result in a risk of fire or
electric shock.
20. ATTACHMENTS — Only use attachments and accessories specified by the manufacturer.
21. VOLTAGE — Insure that the subwoofer is only connected to the rated source voltage. Do not connect the 120-volt version to 230-volts or
vice-versa. This will result in damage to the product and possible injury to the user.
CAUTION: To prevent electrical shock, match wide blade of plug to wide slot, fully inserted.
WARNING: Your Digital DrivePLUS subwoofer generates a very strong magnetic field. People with pacemakers should avoid holding the
subwoofer close to their chest as many pacemakers are very sensitive. Check with your pacemaker manufacturer or physician for guidance
with your device.

You’ve just unpacked your Digital DrivePLUS;the most advanced and best sounding subwoofer available. Velodyne designed the Digital
DrivePLUS to integrate with a wide variety of audio systems. The Digital DrivePLUS integrates with systems consisting of classic turntables and
analog amplifiers to those with surround sound processors and digital media players. Whether you want awesome bass while watching
movies or you’re an audiophile, the Digital DrivePLUS has features and optimization options to suit you.
This introduction is your road map to which parts of this manual apply to your audio system and needs.
READ WHAT YOU NEED TO
This manual has multiple parts, so only read those parts that you need to. This allows you to quickly set up and start enjoying awesome
bass without having to read through lots of pages that don’t apply to your type of audio system(s) or your bass optimization needs.
The rest of this introduction summarizes this manual’s sections, their goals, what’s in them and in what cases reading it is recommended.
PART ONE – OPERATE
Goal
•To help you understand the Digital DrivePLUS features and how to use its inputs, outputs and controls.
Recommended If
•You want to know what Digital DrivePLUS features are available to you.
•You want to know how the audio genre presets impact the subwoofer’s output.
•You are unfamiliar with the uses of the input and output connectors on the back of the Digital DrivePLUS.
•You are integrating your Digital DrivePLUS into an advanced audio system that uses a universal remote to control all the
components in your system.
What’s in this Part
•Description of the functions of the controls, inputs, outputs and display on the Digital DrivePLUS.
•Description of the remote control button functions.
• Description of of the audio presets.
• How to remove and re-install the front grille to access the front controls.
• Description of the power modes, including standby, active and night.
• Description of the serial (RS-232) commands available for controlling the Digital DrivePLUS.
PART TWO - CONNECT
Goal
•To help you connect one subwoofer or multiple subwoofers into your existing audio system(s).
Recommended If
•Your audio system requires connections not covered in the Quick Start Guide.
•You are controlling your audio system using a 12V trigger signal, serial (RS-232) commands, or ethernet port.
•You have a separate surround sound system in addition to your music system. For example, you have a different
amplifier, receiver or speakers you use for listening to music than you do for watching movies.
What’sin this Part
•How to connect using an LFE signal.
• How to connect multiple subwoofers using one subwoofer as a master to control the other slave subwoofers.
• How to connect separate Right and Left audio channels to your subwoofer(s).
• How to connect two audio system outputs to your subwoofer using the line-level and speaker-level connections.
• How to connect if controlling your audio system using a 12V trigger signal, serial (RS-232) commands, or ethernet port.
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Digital DrivePLUS User’s Manual
INTRODUCTION

PART THREE – OPTIMIZE
Goal
•To help you choose the Digital DrivePLUS optimization option and user interface that are right for you.
Recommended If
•You are unfamiliar with the Digital DrivePLUS optimization options for getting the best bass response for your listening
room and preferences.
•You are unfamiliar with the optimization parameters for a subwoofer.
What’s in this Part
•Comparison of the Place & Play, Self-EQ, Auto-EQPLUS and Manual-EQ optimization options available for
Digital DrivePLUS subwoofers.
•Description of what subwoofer parameters you can automatically and manually customize using each optimization option.
• Description of the user interface choices for performing Manual-EQ optimization.
PART FOUR - MAINTAIN
Goal
•To help you understand the Digital DrivePLUS safety, care, warranty and service information.
Recommended If
•You want to know what how to protect your investment in your Digital DrivePLUS.
•You want to register your subwoofer’s warranty.
What’sin this Part
•Listing of the safety guidelines to follow when using your Digital DrivePLUS.
•Listing of the recommended maintenance and care of your Digital DrivePLUS.
•Listing of service and warranty information for your Digital DrivePLUS.
MANUAL CONVENTIONS
Receiver: For simplicity, “receiver” is used throughout this document to refer to your audio receiver or surround sound processor. Many audio
systems use receivers, but more complicated and updated systems use surround sound processors or controllers.
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Digital DrivePLUS User’s Manual
INTRODUCTION

INTRODUCTION
This part of this manual describes how to operate your Digital DrivePLUS subwoofer and its remote control, including:
Controls and Connectors
•The subwoofer’s front and back panel controls and connectors.
•The remote control functions.
•Audio preset settings.
• How to remove and replace the front grille to access the front panel controls.
Features
•Night, light and power modes.
• Protection circuitry.
•The serial commands available for controlling the subwoofer. Serial commands are for advanced integration of the subwoofer into
a home theater system. Usually, this is done by professional installers.
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PART ONE — OPERATE

CONTROLS & CONNECTIONS
The subwoofer is set up, configured and adjusted by the controls, inputs and connections located on the back and front panels of the
subwoofer and the remote. Figures 1, 2 and 3 show the location of each of these important operational interfaces. Brief descriptions of each
interface are below.
Cabinet Front
Inorder to access the controls and connections on the front of the cabinet, you need to remove the grille. You don’t need to remove the grille
right now. For instructions on how to remove and re-install the grille, see the Remove Subwoofer Grille and Install Subwoofer Grille sections.
Figure 1: Subwoofer Cabinet Front with Grille Removed
REMOVE SUBWOOFER GRILLE
To remove the grille:
1. Place your thumbs on the top outside corners of the grille.
2. Use your thumbs to gently apply downward pressure to the top outer grille edges and pull the top grille edge towards you.
3. After the top of the grille is free of the top cabinet face, carefully rock the bottom grille cups of the grille off of the steel grille pegs.
INSTALL SUBWOOFER GRILLE
To reinstall the grille:
1. Carefully insert the bottom grille cups of the grille onto the lower steel grille pins.
2. Place your thumbs on the top outside corners of the grille.
3. Use your thumbs to gently push the top grille onto the cabinet face.
4. Push the grille to the cabinet over each grille pin.
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Digital DrivePLUS User’s Manual
PART ONE — OPERATE
A. USB: Connect this mini USB to a
PC to optionally use the Windows
Setup Program to optimize the
subwoofer output.
B. MIC: Connect the smaller end of the
mic cable to use the microphone in
conjunction with the Sweep Tone CD.
The EQ functions will terminate unless
the microphone is connected.
C. Remote Control Sensor: Receives
remote control commands.
D. LED Display: Shows volume level,
crossover frequency and Auto-EQPLUS
status messages. LED display is
visible through the front grille.
E. VOLUME: Adjust subwoofer output
volume. The volume level shows
on the LED.
F. CROSSOVER: Adjust low pass
crossover frequency.The crossover
frequency shows on the LED.
G. AUTO EQ: Press and hold for 5
seconds to start the Auto-EQPLUS
function. This time delay prevents
accidentally performing the
Auto-EQPLUS function. “AU”
appears on the LED display
once Auto-EQPLUS starts.
The volume and crossover frequency return to their saved values after a power cycle unless these settings were
saved using the Auto-EQPLUS software’s TV screen or PC interface. The volume and crossover knobs don’t change
settings during Self-EQ, Auto-EQ or Manual-EQ.

Cabinet Back Panel
Figure 2: Subwoofer Cabinet Back Panel
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Digital DrivePLUS User’s Manual
CONTROLS & CONNECTIONS

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Digital DrivePLUS User’s Manual
CONTROLS & CONNECTIONS
XLR AUDIO INPUTS
A. LFE INPUT: Balanced XLR inputs.
Connect LFE or left and right balanced
XLR inputs from your receiver or
processor. Either of these inputs can
be used for an LFE signal.
RCA AUDIO INPUTS
B. LFE INPUT: Use one of these two RCA
inputs for the LFE output from your
receiver. Or use the pair for the left and
right channel signals from your receiver.
The line-level control (O.) changes the
volume of these line-level connections.
SPEAKER LEVEL INPUTS
C. SPEAKER LEVEL: Input for either
banana plug/jack or exposed
wire/terminal connections.
RS-232 INPUT
D. RS-232 IN: Communicate with a
computer, a touch panel remote control
or an upstream daisy-chained Digital
DrivePLUS subwoofer.
XLR AUDIO OUTPUTS
E. THRU OUTPUT: Connect subwoofer
output to downstream subwoofer in a
“daisy-chain.” Output is unfiltered L&R.
F. HIGH-PASS OUTPUT: Crossed-over
high frequency output signal to send
to a preamp. The preamp amplifies
this signal to use as the audio input
to satellite speakers. The crossover
frequency is set with the HIGH PASS
CROSSOVER switch.
RCA AUDIO OUTPUTS
G. THRU: Connect subwoofer output
to downstream subwoofer in a
“daisy-chain.” Output is unfiltered L&R.
H. OUTPUT: Crossed-over high frequency
output signal to send to a preamp. The
preamp amplifies this signal to use as
the audio input to satellite speakers.
The crossover frequency is set with the
HIGH PASS CROSSOVER switch.
VIDEO OUTPUTS
I. VIDEO OUT: Display the video
generated by the subwoofer on
your TV using composite video.
J. S-VIDEO: Display the video
generated by the subwoofer
on your TV using S-video.
Either connect the VIDEO
OUT or the S-VIDEO
output; not both.
RS-232 OUTPUTS
K. RS323 OUT: Communicate with a
downstream “daisy-chained” Digital
DrivePLUS subwoofer.
CONTROLS
L. IR INPUT: Allows for hook-up of the
optional Velodyne remote control
receiver. With the optional receiver
plugged in it will allow the remote
control to control the subwoofer even
if the subwoofer sensor is pointed away
from you. Place the infrared receiver
within direct line of sight from your
usual listening position.
M.12V Trigger: Turns the subwoofer
ON and OFF using a 12V signal from
receiver to control. This signal can be
either + 12V or -12V.
N. HIGH PASS CROSSOVER: Selects
the crossover frequency for the XLR
HIGH PASS OUTPUT or the RCA
HIGH PASS OUTPUT as either 80 Hz
or 100 Hz. This filter rolls off at 6 dB.
O. LINE LEVEL CONTROL: Adjust
volume level for line level input (B.)
This level control doesn’t adjust the
volume for the XLR inputs (A.).
Maximum level is with control
turned fully clockwise.
P. SPEAKER LEVEL CONTROL:
Adjust volume level for speaker level
input (C.) Maximum level is with
control turned fully clockwise.
Q. ETHERNET: To accept function
control commands from a home
automation control system.
R. Power Receptacle: Connect
detachable AC power plug.
S. POWER: Switch power to the
subwoofer ON and OFF.
T. Serial Tag: Shows serial number,
model number and manufacturing
date for the subwoofer.

Remote Control
The Velodyne Digital DrivePLUS remote control allows you to:
• Select listening presets and night mode.
•Adjust the subwoofer volume.
•Run Auto-EQPLUS.
•Set up, adjust and reset your subwoofer when connected to a TV.
Take care not to lose or misplace your remote control as some of the adjustments to the subwoofer can only be done using the remote.
Figure 3: Remote Control
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Digital DrivePLUS User’s Manual
CONTROLS & CONNECTIONS

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Digital DrivePLUS User’s Manual
CONTROLS & CONNECTIONS
Listening Controls
A. MUTE: Mutes and unmutes the
subwoofer. You can use this to toggle
between how your audio system sounds
with and without the subwoofer playing.
PRESETS: Accesses the five presets
and one EQ defeat listening modes.
The presets are set at the factory,
but you can adjust them.
B1. THEATER: EQ boost at 37 Hz.
B2. ROCK: EQ boost at 52 Hz.
B3. JAZZ: No EQ boost —
reference listening.
B4. CUSTOM: Set to your
listening preference.
B5. GAMES: EQ boost at 60 Hz.
B6. DEFEAT: Use to toggle between
another preset being on and off
to listen to the sound difference.
C. VOLUME + and -- :Raises or lowers
the volume of your subwoofer.
D. NIGHT: Limits the peak volume of
the subwoofer to a percentage of
the selected preset volume or
SETUP volume.
Other Controls
E. : Toggles the subwoofer between
active and standby modes if power
switch on back of subwoofer is ON.
F. LIGHT: Changes the LED display
operation between momentary on
(default) and constantly on. The
volume level is readable even with
the front subwoofer grille in place.
Optimization Controls
G. EQ: Performs Auto-EQPLUS.If Setup
parameters have been saved from
either an Auto-EQ or Self-EQ, pressing
this button won’t run Auto-EQPLUS again
unless you hold the button down for
about 5 seconds. This is to prevent
Auto-EQPLUS from running and over-
writing any manual settings you
have saved if this button is
accidentally pushed.
H. Numeric keypad: Enters Setup mode,
enters Self-EQ mode and starts
other functions.
Optimization Controls for
EQ Set Up Using a TV Screen
I. MENU: Enters SETUP mode from the
introductory screen.
J. SELECT: Toggles field values.
K. SET + and -- :Increases or decreases
the Q value for a parametric EQ or
sets values on the Settings screen.
L. EXIT: Exits Setup mode.
M. RESET: Resets volume to the last
saved setting on the Systems Settings
screen and defeats the crossovers
on the Settings screen. Also exits
from any EQ process to the
Introductory screen.
N. TEST: Toggles between the
Settings Screen and the
System Response screen.

FEATURES
Audio Presets
The subwoofer comes with six audio presets, five of which are pre-programmed at the factory. The preset or preset’s numbers and their
corresponding labels on the remote are shown in the table below.
• Presets 1, 2, 3 and 5 are shipped from the factory with predetermined settings.
• Preset 4’s contour level is set at 0 from the factory and is customizable by the user.
•Preset 6 defeats all the EQs to demonstrate the effect the equalization of the subwoofer has on the sound quality.
Because movies, rock, pop and games may already have their bass emphasized in the recordings, using these presets may cause too much
low frequency boost for your listening preference. As such, the presets are offered purely to be used to personal taste and are not required for
the various source types.
DEFAULT PRESET SETTING
Number Contour Contour
(System EQ EQ Default
Settings Label on Frequency Boost Volume Suggested Preset Use
Screen) Remote Boost at Level* Level & Description
1 Theater 37 Hz 3.0 34 Movies. Volume is slightly louder than
for the Jazz preset.
2Rock 52 Hz 2.0 33 Rock and Pop music. Volume is slightly
higher than for the Jazz preset.
3Jazz 35 Hz 0.0 30 Jazz and Classical music. This is the most
neutral with no boost at any frequency or
overall volume increase.
4 Custom 35 Hz 0.0 30 For you to make a custom boost frequency and level.
5 Games 60 Hz 2.5 33 Video Console and Online Game Playing.
Gunfire and explosions sound better. Volume
is slightly higher than for the Jazz preset.
6Defeat 35 Hz 0.0 30 Defeats all EQs. Use to toggle between what
your system sounds like with and without EQ.
*The boost level is proportional to dB. That is, a boost of 5.0 is greater than a boost of 3.0. For no boost use 0.0. The boost frequency and
level are controlled by the contour frequency and contour level settings.
Night Mode
Night mode lowers the subwoofer volume by specifying a compression to a percentage of the overall volume level. The factory set, default
percentage for this setting is 30%. You might want to use night mode during times when you want to enjoy your sound system but you don’t
want to disturb your neighbors or other people in your house who are sleeping or need quiet time.
You can toggle night mode on and off using the NIGHT button on the remote control. When toggling night mode:
•You hear a volume change.
•And either “n”then the volume level or “n OFF”appears on the front LED display.
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FEATURES

If using the video output display, night mode shows as active below the Preset note on the Introductory screen. Night mode can be modified in
the “Next” page of either the video output menu or the Windows Setup Program.
Active, Inactive & 12V Trigger Power Modes
The subwoofer has three power ON modes. These modes help the user control power conservation when the subwoofer isn’t playing,
but allow the subwoofer’s power switch to remain ON at all times.
•In the active mode, the subwoofer’s standby mode is on. When the subwoofer gets an audio signal input, the internal amplifier turns on
to play the audio. It takes a few seconds for the DSP processor to boot-up and then you hear the audio.
•If the subwoofer is in active mode and doesn’t receive an audio signal, the subwoofer automatically goes into standby mode to save
power. This takes between 10 to 15 minutes.
•In standby mode, the subwoofer’s power switch is ON and its internal amplifier isn’t on.
If the subwoofer will be left in standby for a period of greater than 5 days,
Velodyne recommends turning off the power switch.
• In the inactive mode, the standby mode is defeated.
•In the inactive mode and when the subwoofer power switch is ON, its internal amplifier is on even if the subwoofer isn’t receiving
an audio signal.
If the subwoofer will be left inactive for a period of greater than 5 days,
Velodyne recommends setting the power switch to OFF.
• In the 12V trigger mode, the subwoofer turns on with a 12V source (from a controlling receiver) at its 12V trigger jack.
•In 12V trigger mode and when the subwoofer’s power switch is ON, its internal amplifier isn’t on until it receives 12V in either polarity
at the 12V trigger jack.
•In 12V trigger mode, if the 12V trigger is not applied, the subwoofer will not respond to the remote control. To reset the mode, apply the
trigger and then use the remote or Windows Setup Program to effect the change.
If the subwoofer will be left inactive in 12V trigger mode for a period of greater than 5 days,
Velodyne recommends setting the power switch to OFF.
Light Mode
When the light mode is OFF, the LED display behind the front grille is always off, except when momentarily lit to show a change in the volume
or crossover settings or the status of the Auto-EQPLUS process. When light mode is ON, the LED display always shows the volume, except it
does reflect changes in crossover settings or the status of the Auto-EQPLUS process and then reverts to volume. Having the LED on at all
times can be distracting in a darkened listening room, so the default setting is OFF.
Protection Circuitry
The subwoofer is equipped with protection circuitry to provide maximum performance with greatest reliability. The subwoofer is
protected against:
• Overdriving the speaker
• Overdriving the amplifier
• Overheating the amplifier
• Excessive drop in power line voltage
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Digital DrivePLUS User’s Manual
FEATURES

The overdrive protection circuitry operates constantly without being audible under most situations.
If the subwoofer should shut down, reduce the volume setting and shut the subwoofer off until it cools down. The time the subwoofer takes
to cool down depends on the ambient room temperature, but typically at least 10 minutes are required for the subwoofer to cool down and
recover from the thermal shutdown.
Also, try plugging the unit into a different wall socket. Overloaded sockets or damaged home wiring circuits can cause power voltage drops
while the subwoofer is drawing high power levels. This condition can result in the subwoofer shutting down intermittently.
230V Users & TV Interface
For 230-volt Digital DrivePLUS subwoofers, the default video mode is NTSC video format. If your TV is NTSC compatible, you will have no
trouble with this mode. However, certain TVs (especially older ones) may require PAL or SECAM video. To switch from NTSC to PAL/SECAM
mode, press the DOWN ARROW four times followed by RESET. The subwoofer will restart in PAL/SECAM video mode. To revert back to
NTSC, restore defaults by pressing 8-9-0 while on the video output Introductory screen.
RS-232 Serial Commands for Controlling Subwoofer
This section describes the RS-232 protocol specification and commands that can be used to control the subwoofer.This protocol indicates
how Digital DrivePLUS subwoofers receive run-time commands from devices such as Crestron®products.
The communication protocol uses the standard communication settings for the COM port as shown below.
COM Port Settings
Baud Rate 9600
Data Bits 7 or 8
Parity None
Stop Bits 1
The Digital DrivePLUS serial ports use a standard configuration that allows direct connection to a PC via a FEMALE to MALE DB-9
RS-232 serial extension cable. Only three pins are required as shown below.
IN Pin OUT Pin
2 Transmit 2 Receive
3 Receive 3 Transmit
5 Ground 5 Ground
If you are having trouble communicating with your Digital DrivePLUS subwoofer, check your serial cable first.
It may be a null modem or “crossover” cable, which won’t work for communicating with the subwoofer.
Serial commands should be formatted as shown below.
RS-232 SERIAL COMMAND FORMATS
Byte Number Byte Description Notes
0 ‘#’ Header character
1 to 3 or 1 to 4 Command and 3 to 4 ASCII characters. See the RS-232 Serial Command
Parameter Data table below. These characters must be in CAPS as the
commands are case sensitive.
4 or 5 ‘$’ Termination character.This character is required or command
is ignored.
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FEATURES

The serial commands are shown below.
RS-232 SERIAL COMMANDS
Activity Command Format Acceptable n Values Examples Comments
Volume #VOnn$ 00-99 #VO25$, Sets volume to a value
#VO+$ #VO+$ Increments volume up
#VO-$ #VO-$ Increments volume down
#VO?$ #VO?$ Requests current volume setting
Preset #PSn$ 1 , 2, 3, 4, 5, 6 #PS4$ Activates the indicated preset
#PS?$ #PS?$ Requests the current preset
Light Mode #LTn$ 0, 1 #LT0$ Activates light mode
#LT?$ #LT1$ Deactivates light mode
#LT?$ Requests light mode state
Night Mode #NMn$ 0, 1 #NM1$ Activates night mode
#NM0$ Deactivates night mode
#NM?$ #NM?$ Requests night mode state
Mute #MUn$ #MU0$ Un-mutes subwoofer
0, 1 #MU1$ Mutes subwoofer
#MU?$ #MU?$ Requests mute state
Power #LTn$ 0, 1 #LT1$ Turns power on
#LT0$ Turns power off
#LT?$ #LT?$ Requests power state‘$’
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Digital DrivePLUS User’s Manual
FEATURES

How to Connect Using an LFE Signal
RCA LFE Connection:
XLR LFE Connection:
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Digital DrivePLUS User’s Manual
PART TWO — CONNECT

How to Connect Multiple Subwoofers Using One Subwoofer as Master to Control
the Other Slave Subwoofer
How to Connect Separate Left and Right Audio Channels to Your Subwoofer
Left & Right RCA Connection:
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Digital DrivePLUS User’s Manual
CONNECT

Left & Right Speaker Level Connection:
NOTE: Be sure to connect + to + and - to -. Do not leave any wire strands loose at the connection.
Left & Right XLR Connection:
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Digital DrivePLUS User’s Manual
CONNECT