JL Audio D110-GLOSS operation manual
Owner’s Manual
d108
d110
IMPORTANT SAFETY INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
AMP PANEL OR SPEAKER. NO USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED PERSONNEL.
1) Read the Instructions — All safety and operating instructions should be
read before the subwoofer is operated.
2) Retain the Instructions — e safety and operating instructions should be
retained for future reference.
3) Heed Warnings — All warnings on the subwoofer and in the operating
instructions should be followed.
e lightning ash with arrowhead
symbol within an equilateral triangle is
intended to alert the user to the presence
of uninsulated “dangerous voltage” within
the product’s enclosure that may be of
sucient magnitude to constitute a risk of
electric shock to persons.
e exclamation point within an
equilateral triangle is intended to alert the
user to the presence of important operating
and maintenance instructions in the
literature accompanying the product.
4) Follow Instructions — All operating and use instructions should
be followed.
5) Water and Moisture — e subwoofer should NOT be used near water – for
example, near a bathtub, washbowl, sink, laundry tub, in a wet basement,
near a swimming pool, etc.
6) Ventilation — e subwoofer should be situated so that its location or
position does not interfere with its proper ventilation. For example, the
subwoofer should not be situated on a bed, sofa, rug, or similar surface
that may block airow over the heatsink’s ns. If placing the subwoofer in
a “built-in” installation, ensure that airow to the heat sink at the rear of
the subwoofer is not impeded. Do not cover the subwoofer heatsink with
tablecloths, curtains, etc.
7) Heat and Flames — e subwoofer should be situated away from heat
sources such as radiators, heat registers, stoves, replaces, or other devices
that produce heat. Do not place candles on top of or near the subwoofer.
8) Power sources — e subwoofer should only be connected to a power supply of
the type described in the operating instructions or as marked on the subwoofer.
9) 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 where they exit the subwoofer.
| d108 & d110Page 2
10) Cleaning — e subwoofer should be cleaned only as recommended in the
operating instructions.
11) Nonuse Periods — e power cord of the subwoofer should be unplugged
from the outlet when the subwoofer is le unused for long periods of time.
12) Lightning and Power Surges — We recommend that you disconnect the
subwoofer from the electrical outlet during electrical storms and/or recurring
power interruptions to prevent damage due to power surges.
13) Object or Liquid Entry — Care should be taken so that objects do not fall
into and liquids are not spilled onto the subwoofer enclosure. Do not expose
the subwoofer to dripping or splashing from liquids. Do not place objects
lled with liquids on top of or near the subwoofer. For example: ower vases,
beverages, liquid-fueled lamps, etc.
14) Damage Requiring Service — e subwoofer should be serviced by qualied
service personnel when:
a. the power-supply cord or plug has been damaged
b. objects have fallen or liquid has been spilled into the subwoofer
c. the subwoofer has been exposed to rain
d. the subwoofer does not appear to operate normally or exhibits a marked
change in performance
e. the subwoofer has been dropped or the cabinet has been damaged
f. the subwoofer driver’s cone and/or suspension has been
physically damaged
ENGLISH
WARNING
15) Servicing — e user should not attempt to service the subwoofer beyond
what is described in the operating instructions. All other servicing should be
referred to qualied service personnel.
16) Overloading — Do not overload wall outlets, extension cords, or outlet strips
as this can result in a risk of re or electric shock.
17) Grounding — is subwoofer is supplied with a three-prong, grounded
power cord. Precautions should be taken so that the grounding means of the
subwoofer are not defeated. Defeating the grounding prong on the subwoofer
power cord could increase the risk of electric shock and could result in
permanent damage to the subwoofer’s electronics.
THIS SUBWOOFER IS CAPABLE OF PRODUCING VERY HIGH SOUND
PRESSURE LEVELS. PLEASE EXERCISE RESTRAINT IN ITS OPERATION TO
PROTECT YOUR HEARING FROM PERMANENT DAMAGE.
Page 3 | d108 & d110
FCC COMPLIANCE STATEMENT
NOTE: is equipment has been tested and found to comply with the limits of Part 15 of the FCC
Rules. ese limits are designed to provide reasonable protection against harmful interference in
a residential installation. is equipment generates, uses and can radiate radio frequency energy
and, if not installed in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment o and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
TABLE OF CONTENTS
Important Safety Instructions: ......................................... 2-3
Introduction:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product Overview: ...................................................... 5
Placing your Dominion™ in Your Listening Room: ........................ 6-10
Unpacking your Dominion™: ............................................ 11
Rear Control Panel Layout: ............................................. 12
Dominion™ Controls in Detail:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-15
Connecting your Dominion™: .........................................16-23
Recommended Setup Procedure: ......................................24-26
Frequently Asked Questions: ............................................ 27
Cleaning Your Dominion™: .............................................. 28
JL AUDIO TECHNOLOGIES INCLUDED
IN DOMINION™ SUBWOOFERS
DMA-Optimized Motor System
DMA is JL Audio’s proprietary Dynamic
Motor Analysis system aimed at
improving dynamic motor behavior. As a
result of DMA optimization, loudspeaker
motors remain linear in force over an
extreme range of excursion and also
maintain a highly stable xed magnetic
eld over a wide power range. is leads
to vastly reduced distortion and faithfully
reproduced transients... or put simply:
tight, clean, articulate bass.
VRC-Vented Reinforcement Collar
(U.S. Patent #6,118,884)
JL Audio’s patented Vented
Reinforcement Collar improves the
rigidity and stability of the cone/
spider/voice coil junction and directs
airow over the voice coil windings
for improved thermal performance.
Floating-Cone™ Attach Method
(U.S. Patent #6,501,844)
is assembly technique ensures proper
surround geometry in the assembled
speaker for better excursion control and
dynamic voice coil alignment.
Engineered Lead-Wire System
(U.S. Patent #7,356,157)
Carefully engineered lead-wire design and
attachments ensure controlled, quiet leadwire behavior under the most extreme
excursion demands, resulting in reduced
distortion, reduced mechanical noise and
improved reliability.
Troubleshooting: ...................................................... 28
Limited Warranty / Service Information: ..................................31
Specications: ......................................................... 32
INTRODUCTION
Congratulations on your purchase of a JL Audio Dominion™ powered
subwoofer system. is product has been critically engineered to deliver
exceptional performance in your home theater or audio system for many
years to come.
As a company, we are intensely committed to core research into
high-performance loudspeaker and amplier technologies. JL Audio’s longexcursion subwoofer driver designs are widely considered as reference
standards for linear behavior and high output. We have also focused our
eorts to create powerful amplier and signal-processing technologies
specically aimed at delivering exceptional low-frequency performance. Your
Dominion™ subwoofer combines these core disciplines within a compact,
| d108 & d110Page 4
beautifully craed package to deliver an unparalleled listening experience.
We sincerely thank you for your purchase and invite you to read this
manual thoroughly in order to achieve the highest level of performance with
your Dominion™ subwoofer system. Enjoy.
PRODUCT OVERVIEW
JL Audio Dominion™ subwoofers combine a state-of-the-art
JLAudio subwoofer driver and electronics/amplier package within
a highly optimized enclosure to deliver an exceptional listening
experience in your home theater or home audio system.
e subwoofer driver in your Dominion™ subwoofer system is capable
of outstanding linear excursion without distress or audible distortion. is
purpose-engineered driver enables your Dominion™ subwoofer to reproduce
powerful low-frequency events with stunning impact and outstanding accuracy.
e Dominion™drivers oer peak-to-peak excursion capabilities well in excess of
2.5 inches (63 mm - d108), and 2.7 inches (68 mm - d110) to comfortably handle
the dynamics of the most demanding program material.
To get the most from this long excursion driver platform, your
Dominion™ incorporates a precisely engineered switching amplier.
e Dominion™ ampliers are capable of unclipped output voltages
equivalent to 500 watts (d108), and 750 watts (d110) of RMS power
when referenced to the nominal loudspeaker impedance, allowing us
to take full advantage of each driver’s full excursion envelope.
e beautiful cabinet enclosing the workings of your Dominion™ is also the
result of careful engineering. To contain the pressures created by the Dominion™
driver, we utilize solid, CNC-cut, MDF material with extensive internal bracing
features and advanced assembly techniques.
e Dominion™ subwoofers also include an on-board low-
pass active crossover, a polarity switch, and phase control to aid in
achieving an optimal acoustic transition between the subwoofer(s)
and main speakers. Inputs are via a pair of line level stereo RCA
inputs or via a removable plug for speaker level inputs.
As you can see from this brief introduction, there is a lot of technology in this
compact subwoofer. e contents of this manual will explain the features and
guide you through the setup and tuning of your Dominion™ to help achieve an
outstanding low-frequency listening experience.
ENGLISH
IMPORTANT
If you require assistance, we urge you to contact your authorized
JL Audio retailer for expert setup advice and service.
IMPORTANT! IT IS A VERY GOOD IDEA TO READ THE NEXT SECTION
BEFORE UNPACKING YOUR DOMINION™ SUBWOOFER. UNPACKING THE
SUBWOOFER NEAR ITS FINAL LOCATION IS RECOMMENDED.
Page 5 | d108 & d110
PLACING YOUR DOMINION™ SUBWOOFER
IN YOUR LISTENING ROOM:
Your listening room or theater is an integral part of your sound reproduction
system. e physical dimensions of the room and its furnishings, materials, doors
and windows play an important role in dening how your system sounds.
When you place a sound source in an enclosed rectangular space, “standing
waves” are created, resulting from the relationship between the sound’s
wavelength and your room’s dimensions. In other words, standing waves result
from sound energy that is trapped in the room as it bounces back and forth
between opposing walls. Standing waves in the room create acoustic peaks and
dips where the sound is either louder or soer, based solely on your physical
position in the room. Energy also “builds up” at the room’s boundaries, creating
exaggerated bass response at certain frequencies. ese fundamental room
resonances are called room “modes.”
e moral of this mode story is to try and avoid seating positions in standing
wave peak or dip regions. It is highly recommended that you place your listening
chairs in areas where modal peaks and dips are moderate and do not reinforce
one another. e two most obvious areas to avoid are those near the exact center
of the room and those close to any of the room’s walls.
Just as your listening seat can be in a peak or dip region, so can your
subwoofer. When placed in a room corner, a subwoofer maximally excites the
room’s mode structure, creating the strongest output with the fewest dips. When
the subwoofer is pulled away from a corner or wall, the room modes are excited
less, which can alter the sound at your listening seat.
Be sure to experiment with both your listening seat position and subwoofer
position to nd the best solution. Careful experimentation usually leads to a
superior sounding system. Use our setup suggestions (illustrated on the opposing
page and the following pages) to get you started.
We recommend that you begin by placing your Dominion™ in the front
of the room, on the oor, near the front le or right speaker. Placing the
Dominion™ near solid walls will reinforce bass response and pulling it away from
solid walls will decrease bass. Increasing the distance between the subwoofer and
the walls may help to smooth upper bass response in some rooms.
We recommend that you avoid placing the Dominion™ near windows to
prevent rattling and sound transmission to the outside world.
If you are planning to install your
Dominion™ inside a cabinet,
please refer to the guidelines on page 8.
| d108 & d110Page 6
Recommended Floor Placement for One Dominion™ Subwoofer
MORE INTENSE
SMOOTHER
SMOOTHER
SMOOTHER
RECOMMENDED
SUBWOOFER
PLACEMENT
ZONES
(For Single Subwoofer)
MORE INTENSE
ENGLISH
SMOOTHER
SMOOTHER
SMOOTHER
COMPROMISED SEATING POSITIONS
(Results in weaker, uneven bass performance)
BEST SEATING POSITIONS
(Most accurate bass performance)
COMPROMISED SEATING POSITIONS
(More intense but less accurate bass performance)
CENTERLINE OF ROOM
APPROX. 1/3 OF TOTAL ROOM
LENGTH AWAY FROM BACK WALL
CLOSE TO BACK WALL OF ROOM
WORST
SEAT
Page 7 | d108 & d110
SPECIAL CONSIDERATIONS FOR BUILT-IN INSTALLATIONS
e Dominion™ subwoofer can be integrated into custom cabinetry by
following a few simple guidelines.
1) Allow 4 inches (10 cm) of clear space behind the amp panel of your Dominion™
for adequate cooling and connector clearance.
2) On all other sides (except the bottom), allow at least 2 inches
(5 cm) clearance for adequate ventilation.
3) While the Dominion™ generally runs only warm during spirited operation, we
do recommend that adequate heat vents are included in any custom cabinet that
encloses the Dominion™. A pair of 3 inch (7.5 cm) diameter vents near the bottom
of the cabinet and near the top of the cabinet, will allow cool air to circulate over
the amp panel of your Dominion™ subwoofer system, keeping it cool and happy.
4) Your Dominion™ subwoofer is capable of moving substantial quantities of air. If
the front of the Dominion™ is covered by a custom grille, the grille size must be
AT LEAST equal to the woofer cone area for each model to ensure the output is
not choked by the custom cabinet. Refer to the chart below for recommended
vent areas for each model.
Model Recommended Custom Grille Vent Area
2
d108 ≥ 33 in
d110 ≥ 49 in
(213 c m2)
2
(316 cm2)
Rear-view of cabinet install:
2 in. min.
VENT VENT
VENT VENT
2 in.
min.
| d108 & d110Page 8
Using Two Dominion™ Subs
When using two Dominion™
subwoofers, try placement near
the front corners of the room, at
diagonally-opposite corners of the
room, or at the center points of
opposing walls as shown at right.
Experimentation with
subwoofer and listener
placement is recommended to
achieve the best results – the
benets can be substantial.
High-resolution measurements
and professional system calibration
are recommended for the best possible
results and system performance.
Recommended Subwoofer Placement for Two Dominion™ Subwoofers
ENGLISH
Page 9 | d108 & d110
Recommended Subwoofer Placement for Three Dominion™ Subwoofers
Using Three or Four
Dominion™ Subwoofers
Research indicates that the
smoothest bass response for a large
listening area can be achieved using
four subwoofers, placing one at
the midpoint of each of the four
walls (although using two or three
subwoofers can be almost as good).
Experimentation with
subwoofer and listener
placement is recommended to
achieve the best results – the
benets can be substantial.
High-resolution measurements
and professional system calibration
are recommended for the best possible
results and system performance.
Recommended Subwoofer Placement for Four Dominion™ Subwoofers
| d108 & d110Page 10
Unpack this box close to where the
subwoofer will be placed. e subwoofer
is PACKED upside down. is box must be
ipped over CAREFULLY to remove the
subwoofer and minimize eort.
IMPORTANT
UNPACKING YOUR DOMINION™
Now that you have determined the position of your Dominion™ on the oor of
your room, you can proceed with unpacking it near its intended location.
D
C
A
IMPORTANT: DUE TO THE WEIGHT OF THE DOMINION™ SUBWOOFER,
PLEASE EXERCISE CAUTION WHILE UNPACKING AND POSITIONING IT TO
PREVENT INJURY. IF POSSIBLE, ENLIST THE HELP OF A SECOND PERSON TO
FACILITATE THE PROCESS. TO MINIMIZE THE RISK OF INJURY, BEND YOUR
KNEES AND LIFT WITH YOUR LEGS, NOT YOUR BACK.
Detailed instructions on unpacking the subwoofer:
1. Place the carton on the oor near its intended location in the room.
B
ENGLISH
2. Open the top of the carton (observe markings on carton) and remove the manual
and power cord.
3. e subwoofer is packed upside down. Li the styrofoam cap o the bottom of
the subwoofer.
4. Loosen the protective cloth cover to allow for easy removal later on (do not
remove at this time). When you open the cloth cover, you are looking at the
bottom of the subwoofer cabinet.
5. Replace the styrofoam cap you removed in Step 3 to protect the subwoofer’s
cabinet while ipping and unpacking the subwoofer in the following steps.
6. Gently ip the box on its side, folding back the carton aps to the outside.
7. Holding the carton aps back, gently ip the carton onto its top (open end).
8. Pull the carton straight up until it clears the subwoofer and place to one side.
9. Remove the top-most styrofoam cap and place this cap in the carton.
10. Remove the plastic bag and place in the carton.
11. Li the subwoofer o the remaining styrofoam cap and place this cap in
the carton.
12. Remove the protective cloth cover and place in the carton.
IMPORTANT
IMPORTANT! PLEASE RETAIN ALL PACKAGING FOR SAFE TRANSPORTATION
OF THE SUBWOOFER AND FOR ANY FUTURE SERVICE NEEDS.
Page 11 | d108 & d110
Rear Control Panel (120V Model Shown)
e labeled gure below depicts the rear panel of a Dominion™ subwoofer.
e d108 and d110 have identical layouts.
Power Indicator
page 14
LP Filter
page 14
LP frequency (Hz)
page 14
80
60
100
40
120
130
25
LP frequency (Hz)
Master Level
page 15
0
0
max
Master Level
phase (deg.)
page 15
225
180
90
45 270
0 280
phase (d eg.)
Polarity
page 15
PolarityLP Filter
0 | 180 deg .off | on
Speaker
Level Inputs
page 16
Line Level
Inputs
page 16
Grounded/
Isolated Switch
page 17
Wireless
Link
page 16
IEC-Style AC
Connector
page 17
S
E
U
F
F
U
E
S
Main Fuse
Holder
page 29
| d108 & d110Page 12
ENGLISH
Page 13 | d108 & d110
DOMINION™ CONTROLS IN DETAIL
0
Master Level
0
max
0 | 180 de g.off | on
phas e (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
0
Master Level
0
max
0 | 180 de g.off
phas e (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
0
Master Level
0
max
0 | 180 de g.off | on
phas e (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
Power Indicator LED
e indicator LED on the control panel shows the operational readiness of the
Dominion™ subwoofer. Note: Dominion™ subwoofers DO NOT have a Power Switch.
Instead, the Dominion™ will automatically power up its internal amplier when it
detects audio at any of its inputs and will power down the internal amplier if no signal
has been detected for approximately thirty (30) minutes. While dormant in this “Low
Power Standby” mode, the Dominion™ consumes only a tiny amount of power (<0.5
watt). Refer to the chart below for the LED’s function and meaning.
LED Color Mode Condition
Green On Audio signal detected
Red Low Power Standy
In the unlikely event that the Auto Turn-On feature is not sensitive
enough for a particular system, use a Y-adaptor cable (one female to two
male RCA type connectors) to split the incoming signal into both RCA
inputs on the Dominion™. is will increase the input level by 6dB. Please
be aware that if there is any signicant noise entering the subwoofer’s
input, it may not turn o as desired. If this happens, remove the Y-adaptor
cable and/or look for the noise source in upstream components.
e only way to completely power down a Dominion™ subwoofer is to unplug its
AC Power Cord. Do not use a switched outlet, power strip switch, or any other external
switch to interrupt or engage power to a Dominion™, as this can result in undesirable
and potentially damaging transient pops.
When rst connected to power or
30 minutes after loss of audio signal
IMPORTANT
LP Filter Switch
e “LP Filter” selector switch determines the operating mode of the built-in
active crossover of your Dominion™.
“O” defeats the crossover lter, completely removing this circuit from the
signal path and is most useful when using a receiver or preamp/processor’s lters
and bass-management features.
“On” activates the on-board active crossover. is crossover consists of a 24
dB/octave low-pass lter for signals feeding the internal amplier.
LP Frequency Knob
e “LP frequency (Hz)” selector knob allows the user to choose the crossover
frequency of the built-in active crossover of your Dominion™. It has no eect
when the “LP Filter” switch is in the “o” position. e frequency is variable from
25 Hz (full counter-clockwise) to 130 Hz (full clockwise). 80 Hz is a commonly
used lter frequency and usually serves as a good starting point for adjustments.
| d108 & d110Page 14
Master Level Knob
0
Master Level
0
max
0 | 180 de g.off
phas e (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
0 | 180 de g.off
phas e (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
0 | 180 de g.off
PolarityLP Filter
e “Master Level” Knob is used to set the output level of the Dominion™,
relative to the rest of the audio system.
When rotated fully counter-clockwise, the subwoofer’s output will be
completely muted. When at the “0” or vertical position, the level is at reference
gain. When turned fully clockwise, the subwoofer’s level is at maximum
sensitivity (loudest).
phase (deg.) Knob
e “phase (deg.)” control knob allows the user to adjust the timing of the
subwoofer output relative to the main speakers. e “phase (deg.)” control will
primarily aect the small frequency range around the crossover point between
your subwoofer and satellite speakers. e “phase (deg.)” control’s degree labeling
is referenced to 80 Hz, since this is the most common crossover point between
satellite speakers and a subwoofer. Phase settings between 0 degrees (full counterclockwise rotation) and 280 degrees (full clockwise rotation) are possible.
Speaker, subwoofer, and listening seat positions vary greatly in home
theater installations. Since physical positioning of speakers relative to the room
boundaries and each other greatly aects the perceived quality of sound output,
sometimes it is helpful to delay the subwoofer output. is is exactly what occurs
when you turn the “phase (deg.)” control beyond 0 degrees.
Once your Dominion™ has been placed in your listening room to give
you the smoothest overall sound, and aer you have determined the
optimum “Polarity” switch position (see following section), experiment
with the position of the “phase (deg.)” control. Using familiar source
material with good mid and upper bass content, adjust the “phase (deg.)”
control and listen for better dened mid-bass and a smoother transition
between the subwoofer and satellite speaker systems. If no single setting
sounds better than another, leave the “phase (deg.)” control at 0 degrees.
ENGLISH
Polarity Switch
e “Polarity” switch allows the user to select between normal (0 deg) and
reversed (180 deg) signal polarity. e “Polarity” switch will primarily aect the
small frequency range around the crossover point between your subwoofer and
satellite speakers.
Unlike the “phase (deg.)” control, which eectively adds time delay, the
“Polarity” switch produces an instantaneous reversal of the signal’s amplitude
peaks. For example if, at a given reference point, a sine wave has an amplitude
peak, by ipping the “phase (deg.)” switch you instantly convert that peak
into a trough or amplitude dip. Because the eect of the “Polarity” switch is
immediate, it compliments the operation of the “phase (deg.)” control and
cannot be replaced by it.
When placing your subwoofer in the room, experiment with the “Polarity”
switch before adjusting the “phase (deg.)” control. Either position of the “Polarity”
switch may provide a smoother transition between your Dominion™ and the satellite
speakers. Use source material with good mid and upper bass content for evaluation.
Page 15 | d108 & d110
0
Master Level
0
max
0 | 180 deg.off | on
phase (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
F
U
S
E
F
U
S
E
0
Master Level
0
max
0 | 180 deg.off | on
phase (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
F
U
S
E
F
U
S
E
CONNECTING YOUR DOMINION™
0
Master Level
0
max
0 | 180 deg.off
phase (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
F
U
S
E
F
U
S
E
Line Level Inputs
e Dominion™ features individual, le and right, unbalanced RCA-type
input connectors. ese are the most commonly used connectors for home
audio applications.
For systems with a mono subwoofer or “LFE” channel connection, only one
RCA-type jack will be used (Le or Right). is method applies to most modern
multi-channel receivers and preamplier / processors.
Separate le and right RCA-type input jacks are provided for systems without
a dedicated mono subwoofer connection. is typically applies to two-channel
audio equipment. e Dominion™ will automatically sum the le and right inputs
to feed its internal subwoofer amplier.
RCA-type connectors (one for each channel):
Tip: Positive
Sleeve: Negative
Input Impedance: 10 kΩ
Speaker Level Inputs
is feature is included for convenience when needing to connect the
Dominion™ to a receiver or integrated amplier that only oers speaker level
outputs. e use of this feature is only recommended when no suitable line-level
signal is available.
To use the “Speaker Level” inputs feature, simply connect the full-range
speaker outputs of your receiver or integrated amplier to the “Speaker Level”
plug of the Dominion™, in parallel with the main speakers. In this application, the
main speakers will remain full-range and their sound will not be aected by the
connection to the Dominion™.
e “Speaker Level” input consists of an input connector and removable plug
with captured-wire receptacles. Standard speaker cable, up to 12 AWG (3 mm2),
can be used and connected to the removable plug by backing out each set screw,
inserting the bare end of each speaker wire, taking care not to short any wire to
another, and tightening the set screw. Connections are as follows:
e Le and Right inputs on the Dominion™
are internally summed to a single mono
channel.
“Speaker Level” Connector (from le to right):
1: Le Channel Positive
2: Le Channel Negative
3: Right Channel Positive
4: Right Channel Negative
Input Impedance: 4.3 kΩ
Wireless Link Connector
Your Dominion™ includes a “Wireless Link” receptacle that can be used with a
JL Audio JLink™ TRX system (sold separately). e JLink™ TRX is a high-delity
audio transmitter & receiver system, capable of wirelessly sending audio signals
up to 100 feet away (30 meters). Using a JLink™ TRX will eliminate the need to
run physical signal cables from your receiver or preamp/processor’s line-level
outputs to the line-level inputs of your Dominion™. Instead, the Dominion™ will
wirelessly receive audio signals into its “Wireless Link” port directly from the
JLINK™ receiver’s cable connection.
Note: Use of the JLINK TRX system requires line-level outputs from your
receiver or amplier. Speaker level outputs are not compatible.
JLINK™ TRX
(sold separately)
| d108 & d110Page 16
0
Master Level
0
max
0 | 180 deg.off
on
phase (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
LP frequency (Hz)
25
130
40
60
120
100
80
F
U
S
E
F
U
S
E
0 | 180 deg.off
phase (deg.)
PolarityLP Filter
45 270
0 280
90
180
225
F
U
S
E
F
U
S
E
“Grounded / Isolated” Switch
is feature is included to address signal grounding issues oen encountered
in home theater systems when several components from dierent manufacturers
are interconnected. e “Grounded / Isolated” Input Mode switch on the rear
connection panel alters only the “RCA Inputs” and is designed to facilitate a quiet,
hum-free connection to your audio or home theater system. is switch has no
eect on signals connected to the “Speaker Level” inputs.
e Dominion™ ships with this switch in the “Isolated” position. If, with all
system components connected and turned on (but no source material playing), you
hear a continuous low-frequency hum through your Dominion™, ip this switch
to the “Grounded” position and evaluate the dierence in the noise level. Use
whichever switch position provides the least hum or noise.
IEC-Style AC Power Connector
e IEC-style AC cord receptacle receives the heavy-gauge, 6 . (1.8 m) long,
power cord included with your Dominion™. Subwoofers sold in dierent parts
of the world are congured for each market’s electrical system and include
appropriate plugs on their power cords. Please note the voltage markings next
to the AC Connector and make sure you are only powering the Dominion™ from
a receptacle that matches these markings. Do not use any AC power cord other
than the one supplied with the Dominion™. For information about the Main Fuse
Holder, please see the Troubleshooting section of this manual.
e Dominion™ subwoofer is a powerful device and can draw a lot of current.
If too many components are connected with a Dominion™ to one electrical outlet,
you risk tripping a household circuit breaker during very demanding program
material. If this happens, split the Dominion™ and other components between two
AC electrical circuits.
ENGLISH
Page 17 | d108 & d110
RECEIVER / PROCESSOR
FRONT
FRONT
PRE OUT
REAR CENTER
L
REAR
R
SUB
DOMINION™ REAR PANEL
LP Filter
off | on
SYSTEM CONNECTION DIAGRAM 1:
One Dominion™ to Home Theater
Receiver or Home Theater Preamp/
Processor
Most home theater receivers and
preamp/processors provide a single
(mono) subwoofer line-level output.
When connecting a mono
subwoofer output to your Dominion™, you
only need to connect to one of the
subwoofer’s “Line Inputs” (Le or Right).
Use a good-quality audio interconnect
cable with RCA-type connectors.
In most cases, you will use
the bass management/crossover
features of the receiver or preamp/
processor. is requires that the “LP
Filter” switch of your Dominion™
is placed in the “O” position.
WARNING! TURN OFF THE DOMINION™(s) AND ALL OTHER EQUIPMENT
IN THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!
WARNING
| d108 & d110Page 18
SYSTEM CONNECTION DIAGRAM 2:
RECEIVER / PROCESSOR
Multiple Dominion™ Subwoofers
to Home Theater Receiver or Home
Theater Preamp/Processor
Most home theater receivers and
preamp/processors provide a single
(mono) subwoofer line-level output.
When connecting a mono subwoofer
output to more than one Dominion™,
use a Y-adaptor cable (splitter) to split
the output signal to multiple audio
interconnect cables, each feeding a
separate Dominion™ subwoofer. Use a
good-quality audio interconnect cable
with RCA-type connectors.
In most cases, you will use
the bass management/crossover
features of the receiver or preamp/
processor. is requires that the “LP
Filter” switch of your Dominion™
is placed in the “O” position.
Some receivers and preamp/
processors oer multiple subwoofer
outputs, which can be used to connect
multiple Dominion™ subwoofers.
Refer to the manual of your
receiver/pre-pro for details.
FRONT
FRONT
Y-ADAPTOR
PRE OUT
REAR CENTER
L
REAR
R
ENGLISH
SUB
LP Filter
off | on
DOMINION™ REAR PANEL (#1)
LP Filter
off | on
DOMINION™ REAR PANEL (#2)
WARNING
WARNING! TURN OFF THE DOMINION™(s) AND ALL OTHER EQUIPMENT
IN THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!
Page 19 | d108 & d110
PRE-AMPLIFIER
OUTPUTS
L
L
INPUTS
R
Y-ADAPTOR
R
Y-ADAPTOR
SPEAKER OUTPUTS
L
+
–
DOMINION™ REAR PANEL
R
+
–
LP Filter
off | on
SYSTEM CONNECTION DIAGRAM 3:
One Dominion™ in Mono to a
Two-Channel Audio System
When connecting a single Dominion™
in mono to a two-channel audio system,
you will use both the “Le” and the “Right”
“Line Inputs” of the Dominion™.
Ideally, you will employ bass
management (crossover) features built
into your preamplier (if available), or
a dedicated active crossover (like the JL
Audio CR-1) to split the le and right
signals between your subwoofer and main
speaker amplier. In these scenarios, the
subwoofer will connect to the dedicated
subwoofer output(s) of the active crossover
or preamplier. Use good-quality audio
interconnect cables with RCA-type
connectors to make these connections.
If you are not using an external active
crossover or bass management built into
your preamplier, you can simply split
the audio signals at the outputs of your
preamplier using Y-adaptor cables
(splitters). en, run a two-channel
audio cable to the subwoofer from these
Y-adaptors, and connect this cable to the
Le and Right Line Inputs of the subwoofer.
In this scenario, you should engage the
low-pass lter on the Dominion™ to apply
low-pass ltering to the signal feeding the
subwoofer’s internal amplier. e signal
to the main speaker amplier will remain
full-range.
SATELLITE AMPLIFIER
(L) (R)
TO SATELLITE
SPEAKERS
WARNING! TURN OFF THE DOMINION™(s) AND ALL OTHER EQUIPMENT
IN THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!
WARNING
| d108 & d110Page 20
SYSTEM CONNECTION DIAGRAM 4:
Two Dominion™ Subwoofers in Stereo
to a Two-Channel Audio System
When connecting two Dominion™
subwoofers in stereo to a two-channel audio
system, you will assign one Dominion™ to
the le channel and the other Dominion™ to
the right channel.
Ideally, you will employ bass
management (crossover) features built
into your preamplier (if available), or
a dedicated active crossover (like the JL
Audio CR-1) to split the le and right
signals between your subwoofers and main
speaker amplier. In these scenarios, the
subwoofers will connect to the dedicated
subwoofer outputs of the active crossover
or preamplier. Connect the le output
of your preamplier to the “Line Input”
of the Dominion™ designated as the le
subwoofer. en, connect the right output
of your preamplier to the “Line Input”
of the Dominion™ designated as the right
subwoofer. Use good-quality audio
interconnect cables with RCA-type
connectors to make these connections.
If you are not using an external active
crossover or bass management built into
your preamplier, you can simply split
the audio signals at the outputs of your
preamplier, Y-adaptor cables (splitters).
en run an audio cable to each subwoofer
from these Y-adaptors. You will only use
one “Line Input” on each Dominion™ (le
or right).
In this scenario, you should engage the
low-pass lter on each Dominion™ to apply
low-pass ltering to the signal feeding each
subwoofer’s internal amplier. e signal
to the main speaker amplier will remain
full-range.
PRE-AMPLIFIER
OUTPUTS
L
Y-ADAPTOR
L
R
Y-ADAPTOR
SPEAKER OUTPUTS
L
+
–
DOMINION™ REAR PANEL (RIGHT)
DOMINION™ REAR PANEL (LEFT)
R
+
–
ENGLISH
LP Filter
off | on
LP Filter
off | on
WARNING
INPUTS
R
SATELLITE AMPLIFIER
(L) (R)
TO SATELLITE
SPEAKERS
WARNING! TURN OFF THE DOMINION™(s) AND ALL OTHER EQUIPMENT
IN THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!
Page 21 | d108 & d110
STEREO RECEIVER
SPEAKER
OUTPUTS
L
+
–
(L) (R)
TO SATELLITE
STEREO RECEIVER
L
–
SPEAKERS
SPEAKER
OUTPUTS
+
–
–
SYSTEM CONNECTION DIAGRAM 5:
Connecting one Dominion™ to a
Receiver via the Speaker Level Inputs
+
R
e Dominion™ features speaker level
inputs designed to accept the output of an
amplied source, such as a stereo receiver’s
speaker outputs. e use of this feature is
only recommended when no suitable line-
HIGH LEVEL
INPUT PLUG
CH. 1
CH. 2
(L)
(R)
level signal is available.
When connecting a single Dominion™
in mono to a two-channel receiver’s speaker
outputs, you will use both the Le and
Right connections on the “Speaker Level”
inputs plug of the Dominion™. Use goodquality speaker cables (up to 12 AWG / 3
mm2) to make these connections. Make
sure you capture all the wire strands in
each connector port and do not allow any
of these wires to short together.
You can make the connections to
the Dominion™ subwoofer’s inputs at
DOMINION™ REAR PANEL
OROR
the receiver’s output terminals, or at
the main speakers, whichever is more
convenient. On receivers with A/B speaker
circuit selectors, you can connect the
Dominion™ to the “B” outputs, giving
you the ability to easily switch the
subwoofer’s signal on and o with the
+
R
TO SATELLITE
SPEAKERS
(R)
(L)
receiver’s speaker circuit selector switch.
e input section of your Dominion™
will sum the le and right inputs to mono
and apply low-pass ltering to feed the
subwoofer’s internal amplier when the “LP
Filter” of your Dominion™ is switched “on.”
HIGH LEVEL
INPUT PLUG
CH. 1
CH. 2
(L)
(R)
Because the main speakers are being
fed in parallel with the inputs of the
Dominion™, they continue to operate as
full-range speakers. Any adjustment of the
“LP frequency (Hz)” knob will only aect
the sound of the Dominion™, not the
main speakers.
DOMINION™ REAR PANEL
WARNING! TURN OFF THE DOMINION™(s) AND ALL OTHER EQUIPMENT
IN THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS!
WARNING
| d108 & d110Page 22
ENGLISH
Page 23 | d108 & d110
RECOMMENDED SETUP PROCEDURES
1) Preparation for Setup Process: ..................................... 24-25
2) Level Setting: ....................................................... 26
3) Polarity/Phase Adjustment: ........................................... 26
4) Experiment with Location: ........................................... 26
PREPARATION FOR SETUP:
Please conrm the following system settings before beginning the setup
process. is will ensure a neutral starting point and an eective setup of your
subwoofer system.
On your Home Theater Receiver or Preamp/Processor:
Before beginning setup of your Dominion™ subwoofer system, we recommend
that you set your receiver or preamp/processor as follows:
1. Speaker Size
In the speaker setup menu of your receiver or preamp/processor, set up all
of your high-frequency speakers as “small” with a crossover point of 80 Hz.
is will send ALL bass, from all channels, to the subwoofers and is the
recommended method for best performance, regardless of the actual size of
your main speakers (big or small).
2. Speaker Distance
In the speaker setup menu, properly set all speaker distances to the primary
listening seat, including the subwoofer’s distance. Use a tape measure
to determine these distances (time coherence is important.) If multiple
Dominion™ subwoofers are being used, average their distances to the primary
listening seat and use that number to set the subwoofer distance.
3. Subwoofer Level
Set the “subwoofer level” in the receiver or preamp/processor to “0” or its
middle position.
4. Tone Controls / Equalizers
Set all tone controls (bass, treble, etc.) to “0” and defeat all equalizer features.
On your Active Crossover or Bass Management Processor:
If you are using an active crossover or bass-management processor, we
recommend that you set it as follows before beginning setup of your Dominion™
subwoofer system (please turn o all Dominion™ subwoofers in the system prior
to making these adjustments):
1. Crossover Filter Frequency
Select a low-pass lter frequency of 80 Hz (24dB/octave slope, if given an option)
2. Subwoofer Output Level
Set the subwoofer output level to “0” or its middle position.
| d108 & d110Page 24
80
60
40
LP frequency (Hz)
100
25
130
On the Dominion™ Control Panel:
1. “LP Filter” Switch and “LP frequency (Hz)” Knob
2. “Polarity” Switch
3. “phase (deg.)” Knob
0
0
120
max
Master Level
225
180
90
45 270
0 280
phas e (deg.)
PolarityLP Filter
0 | 180 deg.off | on
If your home theater receiver/processor is handling bass management
(speakers set on “small”), or if you are using an outboard crossover/bassmanagement processor, ip the “LP Filter” switch of your Dominion™ to “o.”
If your application requires the use of the built-in low-pass lter of your
Dominion™, select the “on” position and set the “LP frequency (Hz)” knob
to “80 Hz”.
Flip the “Polarity” switch to “0.”
Rotate the “phase (deg.)” knob to “0” degrees
ENGLISH
Page 25 | d108 & d110
RECOMMENDED SETUP PROCEDURES
Subwoofer System Setup:
Once you have set the controls on your home theater receiver or preamp/
processor and your subwoofer to the settings recommended on pages 24 and 25,
you are ready to begin setting up your Dominion™ for optimum performance.
1) Level Setting
Using familiar music or movie material with deep bass content, adjust the
subwoofer level to blend with the other speakers using your receiver or preamp/
processor’s subwoofer level control.
In the unlikely event that the subwoofer level control in your receiver or
preamp/processor cannot be turned up enough to level match the Dominion™,
return that control to “0.” Instead, use the “Master Level” control on your
Dominion™ to level match the subwoofer with the other speakers.
For more detailed information on level setting controls of your Dominion™,
please refer to the “Master Level” section on page 14 of this manual.
2) Polarity and Phase Adjustment
It is oen helpful to have a second person operating these controls so that you
can easily hear the changes from the primary listening seat.
Listening to familiar source material (preferably music with good upper bass
and midbass response), ip the “Polarity” switch from “0” to “180” and listen for
dierences. e correct setting will sound most natural with the best upper bass
punch and articulation. If both sound similar, choose “0.”
Once Polarity is set, use the same music material to audition dierent “phase
(deg.)” control settings and choose the one that further enhances the upper and
midbass response. If you cannot hear a dierence, set the control to “0.”
3) Experiment with alternative subwoofer locations (if necessary).
If you are satised with the basic performance of your subwoofer, you are
ready to move on to the next step. If not, we recommend that you experiment
with the position of your subwoofer until you are pleased with its basic
performance. Experimenting with placement is KEY to a superior sounding
system. Moving the subwoofer just a few feet can have a signicant eect on
the smoothness of the bass. For each new position, start with the “Polarity” and
“phase (deg.)” controls at “0” and repeat the setup process beginning with Step 1.
is completes the basic setup process! You can achieve further
improvements through the correct use of processing built into your receiver or
preamp/processor. Consult with your Authorized JL Audio Retailer if you require
further setup assistance.
IMPORTANT! WRITE DOWN ALL SETTINGS PERFORMED IN STEPS 1-3 FOR
FUTURE REFERENCE. PAGE 30 IS PROVIDED FOR INSTALLATION NOTES.
IMPORTANT
| d108 & d110Page 26
FREQUENTLY ASKED QUESTIONS
Can I place objects on my subwoofer?
We do not recommend placing any items on the subwoofer cabinet as they may
vibrate, causing undesirable noise and possible damage to the nish. Under no
circumstances should any object containing liquid be placed on the cabinet.
Will my electric bill be high if I leave the subwoofer plugged in?
Whenever it is plugged into AC power, the Dominion™ amplier is only powered
up when a signicant signal is detected at the inputs. When in low power standby,
only “housekeeping” circuits remain on, which draw negligible amounts of power
from the outlet (less than 0.5 watt).
Should I unplug the subwoofer during a thunderstorm or extended absence?
YES. You should unplug your subwoofer during (or before) thunderstorms.
is will prevent any possible damage from voltage spikes due to lightning. In
these conditions, it’s a good idea to unplug all of your audio/video components.
Unplugging your audio/video equipment before an extended absence is highly
recommended, in the event that a storm event occurs during that absence.
Is it safe to use my Dominion™ outdoors, in a sauna or on a pool deck?
NO. e Dominion™ is only designed for operation in dry, indoor environments.
Is the Dominion™ magnetically shielded?
NO. To avoid magnetic distortion with certain television types, place the
subwoofer at least 3-4 feet (1 - 1.5m) from your screen. If you notice any
discoloration in the picture, try moving the subwoofer further away until these
artifacts disappear.
ENGLISH
Page 27 | d108 & d110
CLEANING YOUR DOMINION™
Dust your Dominion™subwoofer’s cabinet using a clean, so microber cloth
or feather duster. Microber cloths are commonly available where automotive
detailing supplies are sold.
Gloss-Black models:
Light smudges can generally be wiped o with a clean microber cloth. For more
stubborn smudges, polish and protect the nish using a high-quality automotive
wax and a microber cloth, both available wherever automotive detailing
supplies are sold.
Vinyl-Veneer models:
Light smudges can generally be wiped o with a clean microber cloth.
For more stubborn stains, clean the cabinet’s surface with a damp cloth.
Never use a polish that contains harsh solvents or abrasives, as these may
permanently damage the nish. Never use furniture polish or any oil-based
product on your Dominion™. Never use solvents or aggressive cleaning agents on
your Dominion™. When in doubt, test the cleaning product on the underside of
the cabinet and let it sit for several days before committing to its use on visible
portions of the cabinet.
TROUBLESHOOTING
No sound from subwoofer.
1. Verify that your Dominion™ is plugged in and that the control panel LED is green.
Remember that the Dominion™ only turns “on” if audio signals are present on the
sub’s inputs. If the Dominion™ will not power up (no red or green LED), check the
circuit breaker that feeds its outlet or the AC power cord. If your AC outlet has
power but the LEDs still do not come on, you may need to inspect/replace the
main power fuse. Refer to the “Main Fuse Holder” section on the next page.
2. Verify that your receiver’s subwoofer settings have not changed.
3. If your other speakers play, but the Dominion™ does not, try changing the
cable that connects the Dominion™ to the system.
4. If the problem persists, call your Authorized JL Audio Retailer or JL Audio
Technical Support for assistance.
e bass level has changed.
Make sure your level settings on the Dominion™ “Master Level” knob and in your
receiver/preamp/processor have not changed.
Hums or other unusual noises from your subwoofer
1. See discussion of “Grounded/Isolated” switch on page 17 of this manual,
especially if any upstream components, cables, etc., have recently changed.
2. Turn o the subwoofer, disconnect all its input and output signal cables; then
turn the subwoofer back on. If the noise disappears, the noise is being caused
elsewhere in your system.
| d108 & d110Page 28
TROUBLESHOOTING - continued
0 | 18 0 deg.off
PolarityLP Filter
F
U
S
E
F
U
S
E
Bass sounds “muddy” or “too heavy.”
ENGLISH
1. Decrease the overall subwoofer level.
2. Verify your receiver’s subwoofer settings.
3. Try a dierent subwoofer location or main listening seat location. Changing
one or the other can have a HUGE eect on how your system sounds. See the
placement discussion on pages 6-10 of this manual.
You r Dominion™ is clearly audible outside of your house.
1. Revisit the “Master Level” setting on your Dominion™ or your home theater
receiver/preamp/processor.
2. Inquire with your Authorized JL Audio Retailer about noise isolation
strategies.
3. Move the Dominion™ away from windows.
Angry neighbors knocking at your door.
Invite them in and oer them a beverage.
MAIN FUSE HOLDER
Located on the rear panel, next to the AC cord receptacle is the main fuse holder’s
cover. is small spring-loaded cap may be removed, allowing access to inspect
or replace the main power fuse. If your AC outlet has power but the Dominion™
subwoofer’s LEDs do not come on, the main power fuse may be blown.
To Remove - Unplug the subwoofer’s AC power cord. Insert a small athead
screwdriver into the cap’s slot and turn counter-clockwise slowly until the fuse holder
is released. Once removed, the fuse can be inspected and, if necessary, replaced. Refer
to the chart below for fuse values for your specic Dominion™ model.
To Reinstall - Note that the fuse holder’s body is keyed to the opening and must
be aligned to t properly. Insert the fuse holder into the opening and gently turn
clockwise (about 1/8 turn) to lock in place. Pressing the cap and feeling for the spring
to compress will help to locate the correct position. Reconnect the AC power cord.
If the replacement fuse blows immediately aer a fuse replacement,
the subwoofer’s amplier may require service. Please contact
your Authorized JL Audio Retailer or Distributor.
Fuse Ratings, 120V Models Only
Model Fuse Type Fuse Size
d10 8 (120V ) 0.25 x 1.25-inch, fast-acting 6A, 250V
d110 (120V ) 0.25 x 1.25-inch, fast-acting 6A, 250V
Fuse Ratings, 240V Models Only
Model Fuse Type Fuse Size
d108 (240V) 5mm x 20mm, fast acting 4A, 250V
d110 (24 0V ) 5mm x 20mm, fast acting 4A, 250V
Page 29 | d108 & d110
INSTALLATION NOTES
| d108 & d110Page 30
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