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JL Audio E112-GLOSS Manual

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1638-jl-audio-e112-gloss-manual page 2
| e110 & e112Page 2
IMPORTANT SAFETY INSTRUCTIONS
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.
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 airow over the heatsink ns. If placing the subwoofer in
a “built-in” installation, ensure that airow 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
which 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.
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
sucient magnitude to constitute a risk of
electric shock to persons.
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.
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.

Ask a Question

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Do you recommend E112-GLOSS?

Frequently Asked Questions

A

The E112-GLOSS uses a long-excursion 12-inch driver with approximately 3 inches peak-to-peak excursion and a high-performance Class D switching amplifier capable of very high short-term RMS power, delivering strong, low-distortion bass suitable for demanding program material.

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A

Use the onboard active crossover (24 dB/octave Linkwitz-Riley) set between 25–130 Hz for true two-way operation: feed left and right line inputs, engage the crossover, then route the high-pass line outputs to your satellite amplifier. Alternatively, set the subwoofer crossover off if your receiver handles bass management.

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A

Yes. Use the E-Sub’s line output pass-through feature with the crossover switched off to daisy-chain additional E-Subs, or use a Y-splitter or multiple sub outputs if your receiver/preamp provides them.

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A

Start near the front left or right speaker on the floor. Avoid exact room center or immediately against windows. Experiment with placement and listener position to minimize standing-wave peaks and dips; corners increase intensity, while moving away from walls can smooth upper bass.

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A

No. The E112 is designed for dry indoor environments only. Keep it away from water, high humidity areas (saunas, pool decks), and do not expose it to rain or dripping liquids.

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A

Use the rear-panel Grounded/Isolated switch to select the quieter position. Ensure interconnects are secure and test with inputs disconnected; if hum persists, try grounding changes or consult your dealer for further troubleshooting.

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A

Use a clean microfiber cloth for dust and light smudges; for tougher marks, use a high-quality automotive wax and microfiber cloth. Avoid solvent-based or abrasive cleaners to prevent finish damage.

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Advantages and Disadvantages

Advantages

  • Powerful Class D amplifier delivering very high short-term RMS power for dynamic, low-distortion bass.
  • Long-excursion 12-inch driver with up to 3 inches peak-to-peak excursion for deep, authoritative output.
  • On-board 24 dB/octave active crossover (25–130 Hz) enabling true two-way integration with main speakers.
  • Multiple input options (stereo RCA, high-level inputs) and line outputs for easy multi-sub chaining.
  • Comprehensive controls (master level, polarity, 0–280° phase) and grounded/isolated switch for hum elimination.
VS

Disadvantages

  • Sealed enclosure trades some LF extension compared to ported designs—requires amplifier headroom for extreme output.
  • Gloss finish demands careful cleaning and can show fingerprints; solvent-free care required.
  • Subwoofer weight and size require at least two people for safe unpacking and placement in many cases.
  • Not magnetically shielded; must be positioned away from certain TVs to avoid interference.
  • High current draw risks tripping household circuits if multiple components share a single outlet during heavy use.

Product Description

JL Audio E112-GLOSS — Powerful, Precision Bass

The JL Audio E112-GLOSS is a high-performance sealed subwoofer engineered to deliver deep, accurate low-frequency reproduction for home theater and two-channel audio systems. Built around a long-excursion 12-inch driver and a purpose-designed switching Class D amplifier, the E112 produces high output with low distortion, supporting peak-to-peak excursion up to 3 inches and an amplifier capable of very high short-term RMS power. The gloss finish offers an elegant, showroom look while robust MDF construction and internal bracing control unwanted resonances for clean, authoritative bass.

Key Features and Listening Experience

The E112 includes an on-board active 2-way crossover with variable frequency from 25–130 Hz and steep 24 dB/octave Linkwitz-Riley slopes, allowing true two-way integration with main speakers. It offers stereo RCA line inputs, speaker-level inputs via a removable high-level connector, and line outputs for chaining multiple subwoofers. Controls such as master level, polarity (0/180), and a 0–280° phase adjustment make room integration straightforward. The top-mounted power switch supports On, Off, and Auto (signal-sensing) modes, and a grounded/isolated input mode helps eliminate hum.

Practical setup guidance emphasizes correct placement (front of room near left or right speaker as a starting point), experimentation to avoid standing-wave peaks and dips, and recommended clearances for built-in installations. The manual also provides detailed unpacking instructions, wiring diagrams for one or multiple subs in home theater and two-channel systems, and step-by-step setup procedures covering level, polarity/phase, and placement to achieve smooth, tightly controlled bass.

Build, Care, and Support

The E112’s enclosure and finish are designed for durability and aesthetics. Cleaning instructions recommend soft microfiber for gloss surfaces and automotive-grade wax for stubborn smudges; solvents and abrasive polishes are to be avoided. JL Audio provides a three-year limited warranty against defects, with service procedures and contact details included. Safety guidance covers ventilation, moisture, grounding, and handling heavy cabinets during unpacking or installation.

Notes

  • Ideal for listeners seeking high-output, low-distortion bass with precise control and integration options.
  • Phase and polarity controls are intended to optimize the transition between subwoofer and main speakers; experimentation is essential.
  • When using multiple E-Subs, placement strategies (corners, midpoints, or four-wall distribution) can dramatically smooth room response.

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