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.

PRE-OUTS

The e1800D’s “Pre-Outs” connectors output unprocessed (pass-through) left and right channel preamp level signals, permitting connection of additional amplifiers in a system.

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 JL Audio amplifier. In either case, the “Pre-Outs” signals are not affected by any settings in the “Amplifier Controls” or “Bass Boost Controls” sections.

! IMPORTANT

If you plan to use the “Pre-Outs” to feed a stereo amplifier, you must connect a stereo signal to the input of the amplifier. A mono signal into the amplifier will result in a mono signal out of the preamp output.

SPEAKER OUTPUTS

The e1800D’s speaker outputs are designed to accept 8 AWG - 16 AWG wire.

The e1800D is designed to deliver power into speaker loads equal to or greater than 2Ω.

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.

! IMPORTANT

Speaker loads below 2Ω nominal are not recommended and may cause the amplifier to initiate a protection mode and shut itself off.

You will notice that there are two “+” positive connections and two “–” negative connections.This is to facilitate multiple speaker wiring.The two positive and two negative connections are connected in parallel inside the amplifier. Connecting two speakers, each to one set of positive and negative terminals, will result in a parallel speaker connection. If only connecting one pair of speaker wires, it is not necessary to use both sets of connections.

! IMPORTANT

Do not attempt to “bridge” the outputs of this amplifier with the outputs of a second amplifier, including an identical one.

! IMPORTANT

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.

AMPLIFIER STATUS INDICATOR LIGHTS /

PROTECTION CIRCUITRY

There are two status indicator lights on the input / control end of the amplifier:

1)“Power” (Green): lights to indicate that the amplifier is turned on and operating normally.

2)“Protect 1 - Flashing Light” (Red): flashes to indicate that the amplifier’s Level 1 protection circuitry has been activated for one of the following two reasons.

a)The impedance of the speaker(s) connected to the e1800D is less than 2Ω.

b)The vehicle’s charging system voltage has dropped momentarily below 8.2 volts.

3)“Protect 2 - Constant Light” (Red):

illuminates to indicate that the amplifier’s Level 2 protection circuitry has been activated for one of the following two reasons.

a)The amplifier has exceeded its safe operating temperature.This causes the amplifier to reduce power capability 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.

b)The amplifier protection circuitry has detected a dangerously low charging system voltage (consistantly below 8.2 volts).When the problem is eliminated, the amplifier will return to normal operation.

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.

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

9:00 AM – 5:30 PM Eastern Time,

Monday – Friday

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JL AUDIO e1800D

JL AUDIO e1800D

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JL Audio e1800D owner manual Pre-Outs, Speaker Outputs, Amplifier Status Indicator Lights Protection Circuitry
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e1800D specifications

The JL Audio e1800D is an impressive monoblock amplifier designed for automotive audio enthusiasts seeking powerful and high-quality sound performance. This amplifier is part of JL Audio's e-series, which is known for delivering exceptional sound fidelity without compromising on reliability or efficiency.

One of the standout features of the e1800D is its robust power output. It is designed to deliver up to 1,800 watts RMS at a 1-ohm load, making it ideal for driving subwoofers that require significant power to achieve deep, resonant bass. The amplifier can also function effectively at higher impedances, delivering 1,200 watts RMS at 2 ohms and 600 watts RMS at 4 ohms. This versatility ensures that it can be paired with a variety of subwoofers, catering to different audio preferences and setups.

The e1800D incorporates advanced technology to enhance overall performance and sound quality. It features a Class D topology, which not only maximizes power efficiency but also minimizes heat generation. This allows for extended use without the risk of thermal throttling, making it a reliable choice for high-demand audio applications. Additionally, the amplifier is equipped with JL Audio’s proprietary R.I.P.S. (Regulated Efficiency Power Supply) technology, which ensures that consistent power is delivered regardless of the vehicle's electrical system fluctuations.

Another key characteristic of the e1800D is its extensive system controls. The amplifier includes low-pass and bass boost filters, allowing users to tailor the sound output to their preferences. The low-pass filter can be adjusted from 32 Hz to 200 Hz, providing flexibility in aligning the subwoofer with the rest of the audio system. The bass boost feature further enhances low-frequency response, giving users the ability to amplify specific bass notes to better suit individual tastes.

The e1800D is also designed with durability in mind. Its chassis is constructed from high-quality materials, ensuring longevity while keeping the unit lightweight. The amplifier’s compact design simplifies installation in tighter spaces within the vehicle, and its top-mounted controls allow for easy access and adjustments.

Overall, the JL Audio e1800D is a high-performance monoblock amplifier that excels in delivering powerful bass and exceptional sound quality. With its advanced technologies, customizable features, and robust construction, it is a top choice for those seeking to elevate their car audio experience. Whether for competitions or recreational listening, the e1800D stands out as a capable and reliable performer in the automotive audio landscape.
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