JL AUDIO e2150
two-channel full-range amplifier
o w n e r ’ s m a n u a l
Thank you for purchasing a JL Audio amplifier for
your automotive sound system.
Your amplifier has been designed and manufactured to exacting
standards in order to ensure years of musical enjoyment in your
vehicle. For maximum performance and extended warranty
coverage, we highly recommend that you have your new amplifier
installed by an authorized JL Audio dealer. Your authorized
dealer has the training, expertise and installation equipment to
ensure optimum performance from this product. Should you
decide to install the amplifier yourself, please take the time
to read this manual thoroughly so as to familiarize yourself
with its installation requirements and setup procedures.
If you have any questions regarding the instructions in this
manual or any aspect of your amplifier’s operation, please contact
your authorized JL Audio dealer for assistance. If you need further
assistance, please call the JL Audio Technical Support Department at
(954) 443-1100 during business hours (Eastern Time Zone).
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PRODUCT DESCRIPTION
POWER CONNECTIONS
The JL Audio e2150 is a two-channel full-range
amplifier utilizing patented Absolute Symmetry™
Class AB technology for both channels.
The e2150 can be operated with a wide variety
of source units and system configurations.
7) Securely mount the amplifier using the
supplied screws.
8) Connect the positive and negative power
wires to the amplifier.A fuse near the amplifier is
not necessary.
Before installing the amplifier, disconnect the
negative (ground) wire from the vehicle's battery.
This will prevent accidental damage to the system,
the vehicle and your body during installation.
The ground connection should be made using
the same gauge wire as the power connection
and should be kept as short as possible, while
accessing a solid piece of sheet metal in the vehicle.
The surface of the sheet metal should be sanded at
the contact point to create a clean, metal-to-metal
connection between the chassis and the termination
of the ground wire.The use of a star washer to lock
down the connection is advisable.
Any wires run through metal barriers (such as
firewalls), must be protected with a high quality
rubber grommet to prevent damage to the
insulation of the wire. Failure to do so may result in
a dangerous short circuit.
9) Connect the remote turn-on wire
to the amplifier.
TYPICAL INSTALLATION SEQUENCE
The following represents the sequence for a
typical amplifier installation, using an aftermarket
source unit. Additional steps and different
procedures may be required in some applications. If
you have any questions, please contact your
authorized JLAudio dealer for assistance.
10) Connect the input cables to the amplifier.
11) Connect the speaker wires to the amplifier.
12) Carefully review the amplifier’s control
settings to make sure that they are set according to
the needs of the system.
13) Install the power wire fuse (20A for a
single e2150) and reconnect the negative
battery post terminal.
14) Turn on the source unit at a low level
to double-check that the amplifier is configured
correctly. Resist the temptation to crank it up until
you have verified the control settings.
15) Make necessary adjustments to the input
sensitivity controls to obtain the right overall output
and the desired balance in the system. See
Appendix A (page 10) for the recommended input
sensitivity setting method.
1) Disconnect the negative battery post
connection and secure the disconnected cable to
prevent accidental re-connection during installation.
This step is not optional!
IMPORTANT
!
The e2150's “+12VDC” and “Ground”
connections are designed to accept 8 AWG -
4 AWG power wire. 8 AWG is a minimum
power wire size for this amplifier.
Many vehicles employ small (10 AWG - 6 AWG)
wire to ground the battery to the vehicle chassis and
to connect the alternator's positive connection to the
battery.To prevent voltage drops, these wires should
be upgraded to 4 AWG when installing amplifier
systems with main fuse ratings above 60A.
2) Run power wire (minimum 8 AWG) from
the battery location to the amplifier mounting
location, taking care to route it in such a way that
it will not be damaged and will not interfere with
vehicle operation. Use 4 AWG or larger power
wire and a power distribution block if additional
amplifiers are being installed with the e2150.
3) Connect power wire to the positive battery
post. Fuse the wire with an appropriate fuse block
(and connectors) within 18 inches (45 cm) wire
length of the positive battery post. This fuse is
essential to protect the vehicle. Do not install the
fuse until the power wire has been connected to
the amplifier.
4) Run signal cables and remote turn-on wire
from the source unit to the amplifier
mounting location.
5) Run speaker wire from the speaker systems to
the amplifier mounting location.
6) Find a good, solid metal grounding point
close to the amplifier and connect the negative
power wire to it using appropriate hardware. Use
the same size power wire as the wire connected to
the “+12V” connection (min. 8 AWG), no longer
than 36 inches
If you are installing the e2150 with other
amplifiers and wish to use a single main power
wire, use 4 AWG or larger main power wire
(depending on the overall current demands of all
the amplifiers in the system).This 4 AWG or
larger power wire should terminate into a
distribution block mounted as close to the
amplifiers as possible and should connect to the
e2150 with 8 AWG - 4 AWGpower wire.
Please note that smaller AWG numbers mean
bigger wire and vice-versa (1/0 AWG is the
largest, 2 AWG is smaller, then 4 AWG, then
8 AWG, etc.).
To connect the power wires to the amplifier,
first back out the set screw on the top of the
terminal block, using the supplied 2.5 mm hex
wrench. Strip 1/2 inch (12 mm) of insulation from
the end of each wire and insert the bare wire
into the terminal block, seating it firmly so that no
bare wire is exposed.While holding the wire in
place, tighten the set screw firmly, taking care not
to strip the head of the screw.
FUSE REQUIREMENTS
16) Enjoy the fruits of your labor with your
favorite music.
It is absolutely vital that the main power wire(s)
to the amplifier(s) in the system be fused within
18 inches (45 cm) of the positive battery post
connection.The fuse value at each power wire
should be high enough for all of the equipment
being run from that power wire. If only the
e2150 is being run from that power wire, we
recommend a 20A fuse be used. AGU (big glass
fuse) or MaxiFuse™ (big plastic-body fuse) types
are recommended.
No fuse is required or recommended directly
before the amplifier power connection. If one is
desired, we recommend the use of a 20A AGU fuse
or MaxiFuse™ type.
(90 cm) from the amplifier to the ground
connection point. In some vehicles, it may be
necessary to upgrade the battery ground wire.
(See page 5 for important notice).
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JL AUDIO e2150
JL AUDIO e2150
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TURN-ON LEAD
AMPLIFIER CONTROLS
BASS BOOST CONTROLS
The e2150 uses a conventional +12V remote
turn-on lead, typically controlled by the source unit's
remote turn-on output.The amplifier will turn on
when +12V is present at its “Remote” input and
turn off when +12V is switched off. If a source unit
does not have a dedicated remote turn-on output,
the amplifier’s turn-on lead can be connected to
+12V via a switch that derives power from an
ignition-switched circuit.
The e2150's “Remote” turn-on connector is
designed to accept 18 AWG – 12 AWG wire.To
connect the remote turn-on wire to the amplifier,
first back out the set screw on the top of the
terminal block, using the supplied 2.5 mm hex
wrench. Strip 1/2 inch (12mm) of wire and insert
the bare wire into the terminal block, seating it
firmly so that no bare wire is exposed.While
holding the wire in the terminal, tighten the set
screw firmly, taking care not to strip the head of the
screw and making sure that the wire is firmly
gripped by the set screw.
Input Sensitivity
This control, labeled “Input Sens.”, can be used
to match the source unit's output voltage to the
input stage of the e2150 for maximum clean
output. Rotating the control clockwise will result in
higher sensitivity (louder for a given input voltage).
Rotating the control counter-clockwise will result in
lower sensitivity (quieter for a given input voltage.)
To properly set the amplifier for maximum clean
output, please refer to Appendix A (page 10). After
using this procedure, you can then adjust the
“Input Sens.” level downward if this is required to
achieve the desired system balance.
Do not increase any “Input Sens.” setting for
any channel(s) of any amplifier in the system
beyond the maximum level established during the
procedure outlined in Appendix A (page 10).
Doing so will result in audible distortion and
possible speaker damage.
1) “Filter Mode” Control:The e2150 employs a
12dB per octave filter.This filter can be configured
into one of two filter types or defeated completely
by way of the three-position “Filter Mode” switch:
“Off”: Defeats the filter completely, allowing the full
range of frequencies present at the inputs to feed
the amplifier.This is useful for systems utilizing
outboard crossovers or requiring full-range
1) Bass Boost: This switch allows the user to
activate a 6 dB boost centered at 48 Hz.When the
“Bass Boost” is activated, the inputs to “CH 1
(Left)” and “CH 2 (Right)” are summed to create
a mono signal.The “Filter Mode” switch in the
“Channel 1 & 2” section must be in the “LP”
position for the bass boost to be functional.
2) Remote Bass Port: This port allows you to
connect an optional remote boost knob (sold
separately, JL Audio Model RBC-1) that can be
mounted in the front of the vehicle. With the
RBC-1 connected, the boost is no longer limited to
0 or +6 dB, allowing a range of 0 - 12 dB of boost
to be selected.
reproduction from the e2150.
Filter Controls
“LP” (Low-Pass): Configures the filter to attenuate
frequencies above the selected filter frequency at a
rate of 12dB per octave. Useful for connection of
subwoofer(s) to the e2150 in a bi-amplified system.
“HP” (High-Pass): Configures the filter to attenuate
frequencies below the selected filter frequency at a
rate of 12dB per octave. Useful for connection of
coaxial or component satellite speaker systems to
the e2150 in a bi-amplified system.
Most speakers are not designed to reproduce
the full range of frequencies audible by the human
ear. For this reason, most speaker systems are
comprised of multiple speakers, each dedicated to
reproducing a specific frequency range. Filters are
used to select which frequency range is sent to
each section of a speaker system.The division of
frequency ranges to different speakers can be
done with passive filters (coils and/or capacitors
between the amplifier outputs and the speakers),
which are acceptable and commonly used for
filtering between mids and tweeters. Filtering
between subwoofer systems and satellite speaker
systems is best done with active filters, which cut
off frequency content at the input to the amplifier.
Active filters are more stable than passive filters
and do not introduce extraneous resistance,
which can degrade subwoofer performance.
The active filter built into the e2150 can be used
to eliminate potentially harmful and/or undesired
frequencies from making their way through the
amplifier section to the speaker(s).This serves to
improve tonal balance and to avoid distortion and
possible speaker failure. Correct use of this filter can
substantially increase the longevity and fidelity of
your audio system.
INPUT SECTION
The e2150 has one input section with two
distinct input connection options.These are:
1) A pair of traditional RCA type connections
designed to accept input from source units with line
level outputs.
2) A four-pin connector designed to accept input
from amplified sources such as factory source units
or source units not equipped with line level outputs.
2) “Filter Freq. (Hz)”The filter frequency
markings surrounding this rotary control are for
reference purposes and are generally accurate to
within 1/3 octave or better. If you would like to
select the filter cutoff frequency with a higher level of
precision, consult the chart in Appendix B (page 11).
Tuning Hint: If you are using the e2150 to drive a
subwoofer system (“LP” mode) or a component
satellite speaker system (“HP”mode), 100 Hz is a
good baseline “Filter Freq. (Hz)” setting. After
properly adjusting the “Input Sens.”, as outlined in
Appendix A (page 10), you can fine tune the
“Filter Freq. (Hz)” control to achieve the desired
system frequency response.
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JL AUDIO e2150
JL AUDIO e2150
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PRE-OUTS
The e2150’s “Pre-Outs” connectors output
unprocessed (pass-through) left and right channel
preamp level signals, permitting connection of
additional amplifiers in a system.
channels. In order to achieve one of these options,
configure the inputs in one of these two ways:
1) Left Channel Only or Right Channel Only
Information: If you wish to send a Left-only or
Right-only signal to the e2150, use a “Y-Adaptor” to
split the single channel signal into both left and right
RCA inputs (or parallel-connect both positive and
both negative high-level input connections to a
single channel source signal).This option is useful
when using one e2150 to drive the left channel
speakers only and another e2150 to drive right
channel speakers only.
1) “Power” (Green): lights to indicate that the
amplifier is turned on and operating normally.
2) “Protect” (Red): lights or flashes to indicate
that the amplifier protection circuitry has been
activated to prevent product failure.
a) If the red “Protect” indicator lights steadily
(without flashing), the amplifier has exceeded its safe
operating temperature.This causes the amplifier to
shut off in order to protect its circuitry. When the
amplifier’s temperature drops to a safe level, the red
“Protect” indicator will shut off and the amplifier
will return to normal operation.
IMPORTANT
!
Speaker loads below 2Ω nominal per channel
are not recommended and may cause the amplifier
to initiate a protection mode and shut itself off.
b) If the red “Protect” indicator flashes
IMPORTANT
!
intermittently, the protection circuitry has detected a
short-circuit or a dangerously low impedance
connected to the amplifier output(s). Connecting
the speaker outputs to an impedance lower than
2Ω stereo (4Ω bridged) will cause this protection
mode to activate.The amplifier’s output may cycle
on and off when this protection mode is activated.
When the problem is eliminated, the amplifier will
return to normal operation.
When using either the line level inputs (RCA
input connections) or the “High Level Inputs”
(four-pin connector), the output signals are identical
to the input signals. If the “High Level Inputs” are
used, the signal present at the “Pre-Outs” can still
be sent to another JLAudio amplifier. In either case,
the “Pre-Outs” signals are not affected by any
settings in the “Amplifier Controls” or “Bass
Boost Controls” sections.
When parallel-connecting both positive and both
negative high-level input connections as described
above, make sure to connect negative (–) wires to
negative (–) wires and positive (+) wires to
possitive (+) wires.
BRIDGING CONSIDERATIONS
Bridging is the practice of combining the output
of two amplifier channels to drive a single load.
When bridged, each channel produces signals of
equal magnitude, but opposite polarity.The
combined output of the two channels provides
twice the output voltage available from a single
channel.The e2150 has been designed for bridging
of its two channels without the need for input
inversion adaptors.
To bridge the e2150’s two channels, use the
“Ch1 +” and “Ch2 –” speaker connectors only
(the “Ch1 –” and “Ch2 +” remain unused).When
bridged, the e2150 will deliver optimum power into
a 4Ω load.
2) Left + Right Channel Information: When
bridged and fed by a stereo input, the e2150 will
automatically combine the left and right channels
into a summed mono (left + right) channel.This
option is useful when using the e2150 to drive a
subwoofer system or a summed mono
center channel.
SERVICINGYOUR JL AUDIO AMPLIFIER
If your amplifier fails or malfunctions, please
return it to your authorized JL Audio dealer so
that it may be sent in to JL Audio for service.
There are no user serviceable parts or fuses
inside the amplifier.The unique nature of the
circuitry in the JL Audio amplifiers requires
specifically trained service personnel. Do not
attempt to service the amplifier yourself or
through unauthorized repair facilities.This will not
only void the warranty, but may result in the
creation of more problems within the amplifier.
SPEAKER OUTPUTS
The e2150’s speaker outputs are designed to
accept 8 AWG - 16 AWG wire.
The e2150 is designed to deliver power into
speaker loads equal to or greater than 2Ω when
using a “stereo” configuration and speaker loads
equal to or greater than 4Ω when using a
“bridged” configuration.
To connect the speaker wires to the amplifier,
first back out the set screws on the top of the
terminal block, using the supplied 2.5 mm hex
wrench. Strip 1/2 inch (12 mm) of insulation from
the end of each wire and insert the bare wire
into the terminal block, seating it firmly so that no
bare wire is exposed.While holding the wire in
place, tighten the set screw firmly, taking care not
to strip the head of the screw.
AMPLIFIER STATUS INDICATOR LIGHTS /
PROTECTION CIRCUITRY
There are two status indicator lights on the
input / control end of the amplifier:
IMPORTANT
!
When bridged, the e2150 will deliver 150W x 1
into a 4Ω load or 90W x 1 into an 8Ω load.
Operating a bridged e2150 into a load lower than
4Ω is not recommended.
If you have any questions about the installation or
setup of the amplifier not covered in
this manual, please contact your dealer or the
JL AUDIO Technical Department for assistance:
(954) 443-1100
Because a bridged pair of channels requires that
both channels receive input, you need to connect
both left and right inputs to the source unit.
Connection of only one input will result in reduced
power output, increased distortion and can cause
the amplifier to overheat. Do not do this!
9:00 AM – 5:30 PM Eastern Time,
Monday – Friday
When the e2150 is operating in bridged mode,
the output will be in mono (only one channel).This
mono channel can contain right channel only
information, left channel only information or the
sum of the information from both the right and left
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JL AUDIO e2150
JL AUDIO e2150
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APPENDIX A:
APPENDIX B:
APPENDIX C:
Input Sensitivity Level Setting
Precise Frequency Selection Chart
e2150 Specifications
“FILTER FREQ” AMP FILTER
Following the directions below will allow the
installer to adjust the input sensitivity of the
amplifier(s) simply and easily in just a few minutes
using equipment which is commonly available in
installation bays.
9) Once you have adjusted the e2150 to its
maximum low-distortion output level, lower the
system volume (on the source unit) and reconnect
the speaker(s).The “Input Sens.” controls can now
be adjusted downward if the amplifier requires
attenuation to achieve the desired system balance.
GENERAL SPECIFICATIONS:
Recommended FuseValue: 20A
Detent
Number
Panel
Marking
Actual
Freq.
Recommended Fuse Type: AGU or MaxiFuse™
Full counter-clockwise: 53
01 . . . . . . . . . . . . . . . . . . . . . . . .53
02 . . . . . . . . .“50” . . . . . . . . .53
03 . . . . . . . . . . . . . . . . . . . . . . . .53
04 . . . . . . . . . . . . . . . . . . . . . . . .54
05 . . . . . . . . . . . . . . . . . . . . . . . .54
06 . . . . . . . . . . . . . . . . . . . . . . . .55
07 . . . . . . . . . . . . . . . . . . . . . . . .55
08 . . . . . . . . .“55” . . . . . . . . .56
09 . . . . . . . . . . . . . . . . . . . . . . . .56
10 . . . . . . . . . . . . . . . . . . . . . . . .57
11 . . . . . . . . . . . . . . . . . . . . . . . .58
12 . . . . . . . . . . . . . . . . . . . . . . . .59
13 . . . . . . . . . . . . . . . . . . . . . . . .62
14 . . . . . . . . .“60” . . . . . . . . .65
15 . . . . . . . . . . . . . . . . . . . . . . . .65
16 . . . . . . . . . . . . . . . . . . . . . . . .66
17 . . . . . . . . . . . . . . . . . . . . . . . .70
18 . . . . . . . . . . . . . . . . . . . . . . . .73
19 . . . . . . . . . . . . . . . . . . . . . . . .77
20 . . . . . . . . .“80” . . . . . . . . .81
21 . . . . . . . . . . . . . . . . . . . . . . . .84
22 . . . . . . . . . . . . . . . . . . . . . . . .88
23 . . . . . . . . . . . . . . . . . . . . . . . .94
24 . . . . . . . . . . . . . . . . . . . . . . .101
25 . . . . . . . . . . . . . . . . . . . . . . .104
26 . . . . . . . . .“120” . . . . . . . .115
27 . . . . . . . . . . . . . . . . . . . . . . .118
28 . . . . . . . . . . . . . . . . . . . . . . .128
29 . . . . . . . . . . . . . . . . . . . . . . .137
30 . . . . . . . . . . . . . . . . . . . . . . .146
31 . . . . . . . . . . . . . . . . . . . . . . .164
32 . . . . . . . . .“150” . . . . . . . .177
33 . . . . . . . . . . . . . . . . . . . . . . .193
34 . . . . . . . . . . . . . . . . . . . . . . .197
35 . . . . . . . . . . . . . . . . . . . . . . .209
36 . . . . . . . . . . . . . . . . . . . . . . .213
37 . . . . . . . . . . . . . . . . . . . . . . .216
38 . . . . . . . . .“200” . . . . . . . .218
39 . . . . . . . . . . . . . . . . . . . . . . .225
Full-clockwise: 225
INPUT SECTIONS:
No. of Inputs: One Stereo Pair
Necessary Equipment
• Digital ACVoltmeter
Input Type: Differential, noise-cancelling with RCA jack
inputs (low-level) and multi-pin jack (high-level)
Input Range: 200mV - 8V RMS
IMPORTANT
!
• CD with a sine-wave test tone recorded at 0 dB
reference level in the frequency range to be
amplified for that set of channels (50 Hz for
subwoofer channels, 1 kHz for a midrange
application). Do not use attenuated test tones
(-10 dB, -20 dB, etc.).
Do not increase any “Input Sens.” setting for
any amplifier in the system beyond the maximum
level established during this procedure. Doing so
will result in audible distortion and possible
speaker damage.
AMPLIFIER SECTION:
Amplifier Topology: Class AB with patented Absolute
Symmetry™ dual N-Channel MOSFET output design
Power Supply: Unregulated MOSFET switching type
Rated Power (Stereo):
It will be necessary to re-adjust the
The Nine-Step Procedure
1) Disconnect the speaker(s) from the
amplifier’s speaker output connectors.
“Input Sens.” for the affected channels if any
equalizer boost is activated after setting the
“Input Sens.” with this procedure.This applies to
any EQ boost circuit, including source unit tone
controls or EQ circuits. EQ cuts will not require
re-adjustment.
45W RMS x 2 @ 4Ω (12.5V)
75W RMS x 2 @ 2Ω (12.5V)
Rated Power (Bridged):
2)Turn off all processing (bass/treble, loudness,
EQ, etc.) on the source unit, processors (if used)
and amplifier. Set fader control to center position
and subwoofer level control to 3/4 of maximum (if
used to feed the e2150).
3)Turn the “Input Sens.” control all the
way down.
4) Set the source unit volume to 3/4 of full
volume. This will allow for reasonable gain overlap
with moderate clipping at full volume.
5) Using the chart on this page, determine the
target voltage for input sensitivity adjustment
according to the nominal impedance of the speaker
system connected to the amplifier outputs.
6)Verify that you have disconnected the
speakers before proceeding. Play a track with an
appropriate sine wave (within the frequency range
to be amplified by the e2150) at 3/4 source
unit volume.
7) Connect the AC voltmeter to the speaker
output connectors of the amplifier. If the channel
pair is operating in stereo, it is only necessary to
measure one channel. If bridged, make sure you test
the voltage at the correct connectors (L+ and R–).
8) Increase the “Input Sens.” control until the
target voltage is observed with the voltmeter.
90W RMS x 1 @ 8Ω (12.5V)
150W RMS x 1 @ 4Ω (12.5V)
THD at Rated Power: <0.08% @ 4 ohms per channel
(20 Hz - 20 kHz)
Signal to Noise Ratio: >104 dB referred to rated power
(A-weighted, 20 Hz-20 kHz noise bandwidth)
Frequency Response: 10 Hz - 25 kHz (+0, -1dB)
Damping Factor: >200 @ 4Ω per ch./50 Hz,
>100 @ 2Ω per ch. /50 Hz
Nom.
Target ACVoltage
Impedance Stereo
Bridged
8Ω
6Ω
4Ω
3Ω
2Ω
13.4V
13.4V
13.4V
12.8V
12.3V
26.8V
25.6V
Slew Rate: 22V/µs
24.6V
not recommended
not recommended
AMPLIFIER FILTER:
Filter Type: State-variable, 12dB/octave Butterworth with
continuously variable cutoff frequency selection from
50-200 Hz. Configurable as Low-Pass or High-Pass.
Defeatable.
PREAMP OUTPUT:
Pass-through type. Output signal is identical to the signal at
the Amp Inputs.
DIMENSIONS (LxWxH):
9.8" x 9.25" x 2.36" (250mm x 235mm x 60mm)
Due to ongoing product development, all specifications are
subject to change without notice.
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JL AUDIO e2150
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APPENDIX D: TROUBLE SHOOTING
“MY AMPLIFIER DOESN’TTURN ON”
“MY AMPLIFIERTURNS ON, BUTTHERE IS NO OUTPUT”
Check the input signal using an AC voltmeter to measure the voltage
Check to make sure there is +12V at the “Remote” connection of
the amplifier. In some cases, the turn-on lead from the source
unit is insufficient to turn on multiple devices and the use of a
relay is required. To test for this problem, jump the “+12V”
wire to the “Remote” terminal to see if the amplifier turns on.
If this does not work, proceed to the next step.
from the source unit while an appropriate test tone is played
through the source unit (disconnect the input cables from the
amplifier prior to this test).The frequency used should be in
the range that is to be amplified by the amplifier
(example: 50 Hz for a sub bass application or 1 kHz for a full
range / high-pass application). A steady, sufficient voltage
(between 0.2 and 8.0V) should be present at the output of
the signal cables.
Check the fuse, not just visually, but with a continuity meter. It is
possible for a fuse to have poor internal connections that
cannot be found by visual inspection. It is best to take the fuse
out of the holder for testing. If no problem is found with the
fuse, inspect the fuse-holder.
Check the output of the amplifier. Using the procedure explained in
the previous check item (after plugging the input cables back
into the amplifier) test for output at the speaker outputs of the
amplifier. Unless you enjoy test tones at high levels, it is a good
idea to remove the speaker wires from the amplifier while
doing this. Turn the volume up approximately half way.
5V or more should be measured at the speaker outputs. This
output level can vary greatly between amplifiers but it should
not be in the millivolt range with the source unit at half
volume. If you are reading sufficient voltage, check your speaker
connections as explained below.
Check to ensure that the speaker wires are making a good
connection with the metal inside the terminal block. The
speaker wire connectors are designed to accept up to
12 AWG wire. Make sure that 1/2 inch (12 mm) of insulation
has been stripped from the end of each wire and the bare
wire is seated firmly in the terminal block so that no bare
wire is exposed.
“I GET A DISTORTED / ATTENUATED SOUND COMING OUT OFTHE SPEAKER(S)”
Check the input signal and input signal cables to make sure signal is
present at the “Amplifier Inputs” and the cables are not
pinched or loose. It may be helpful to try a different set of
cables and/or a different signal source to be sure.
“MY AMPLIFIER SHUTS OFF ONCE IN A WHILE, USUALLY AT HIGHERVOLUMES”
Check your voltage source and grounding point.The power supply of
the e2150 will operate with charging system voltages down to
8V. Shutdown problems at higher volume levels can occur
when the charging system voltage drops below 8V.These dips
can be of very short duration making them extremely difficult
to detect with a common DC voltmeter.To ensure proper
voltage, inspect all wiring and termination points. It may also be
necessary to upgrade the ground wire connecting the battery
to the vehicle’s chassis and the power wire connecting the
alternator to the battery. Many vehicles employ small
“MY AMPLIFIER’S OUTPUT FLUCTUATES WHEN ITAP ON IT OR HIT A BUMP”
Check the connections to the amplifier. Make sure that the insulation
for all wires has been stripped back far enough to allow a
(10 AWG - 6 AWG) wire to ground the battery to the vehicle’s
chassis and to connect the alternator to the battery.To prevent
voltage drops, these wires should be upgraded to 4 AWG
when installing amplifier systems with main fuse ratings above
60A. Grounding problems are the leading cause of
good contact area inside the terminal block.
Check the input connectors to ensure that they all are making good
contact with the input jacks on the amplifier.
mis-diagnosed amplifier failures.
“HOW DO I PROPERLY SETTHE INPUT SENSITIVITY ON MY AMPLIFIER”
Please refer to Appendix A (page 10) to set the input sensitivity for
maximum, low-distortion output.
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JL AUDIO e2150
JL AUDIO e2150
13
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INSTALLATION NOTES:
Use this diagram to document your amplifier’s switch and control positions.
14
JL AUDIO e2150
JL AUDIO e2150
15
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LIMITEDWARRANTY - AMPLIFIERS (USA)
JL AUDIO warrants this product to be free of defects in materials and workmanship for a period of ninety
(90) days from the original date of purchase.The warranty term is extended to two (2) years if installation is
performed or approved by an authorized JL AUDIO dealer (proof of installation or approval required on
purchase receipt).
This warranty is not transferrable and applies only to the original purchaser from an authorized JL AUDIO
dealer. Should service be necessary under this warranty for any reason due to manufacturing defect or
malfunction, JL AUDIO will (at its discretion), repair or replace the defective product with new or remanufactured
product at no charge. Damage caused by the following is not covered under warranty: accident, misuse, abuse,
product modification or neglect, failure to follow installation instructions, unauthorized repair attempts,
misrepresentations by the seller.This warranty does not cover incidental or consequential damages and does not
cover the cost of removing or reinstalling the unit(s). Cosmetic damage due to accident or normal wear and tear
is not covered under warranty.
Warranty is void if the product’s serial number has been removed or defaced.
Any applicable implied warranties are limited in duration to the period of the express warranty as provided
herein beginning with the date of the original purchase at retail, and no warranties, whether express or implied,
shall apply to this product thereafter. Some states do not allow limitations on implied warranties, therefore these
exclusions may not apply to you.This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
If you need service on your JL AUDIO product:
All warranty returns should be sent to JL AUDIO ’s Amplifier Service Facility freight-prepaid through an
authorized JL AUDIO dealer and must be accompanied by proof of purchase (a copy of the original sales receipt).
Direct returns from consumers or non-authorized dealers will be refused unless specifically authorized by
JL AUDIO with a valid return authorization number.
Warranty expiration on products returned without proof of purchase will be determined from the
manufacturing date code. Coverage may be invalidated as this date is previous to purchase date. Non-defective
items received will be returned freight-collect. Customer is responsible for shipping charges and insurance in
sending the product to JL AUDIO. Freight damage on returns is not covered under warranty.
For Service Information in the U.S.A. please call:
JL Audio customer service: (954) 443-1100
during normal business hours (9:00 AM – 5:30 PM Eastern Time)
JL Audio, Inc
10369 North Commerce Pkwy.
Miramar, FL 33025
(do not send product for repair to this address)
InternationalWarranties:
Products purchased outside the United States of America are covered only
by that country’s distributor and not by JL Audio, Inc.
™
Absolute Symmetry Class AB Amplifier Circuit is covered by U.S. Patent #6,294,959 and is
pending in the countries listed below. Austria,Belgium,Brazil,Canada,China,France,Germany,Indonesia,
Italy, Japan, Republic of Korea, Mexico, Netherlands, Norway, Russian Federation, Singapore, Sweden,
Switzerland, United Kingdom, and all other PCT countries.
e2150MAN-CH-01-2003
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