JL Audio E-Sub e112

Powered subwoofer (Black Ash)

Item #: 136E112ASH

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Expected: 12/31/2014 Reserve yours risk-free

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Bass that will move you

Deep, realistic bass adds visceral impact and atmosphere to your music and movies to help them hit you on an emotional level. No one understands this better than the bass enthusiasts at JL Audio. They should know — they've been building world-class subwoofers for car and home for decades. The latest example of their exceptional skills and craftsmanship is the e112 powered sub. This 1,500-watt dynamo delivers room-shaking bass that goes loud, clean and low. But it's about so much more than just "the boom." The e112's massive, long-excursion 12" driver provides pinpoint accuracy and control that gives your bass superb definition, texture, and musicality.

JL Audio e110 long-excursion driver

A massive, long-excursion 12" driver delivers deep, accurate bass that gives your system a strong musical foundation.

Massive, long-excursion driver

The e112's powerful performance begins with its exceptionally deep driver design. Built around a 12" cast-frame woofer with a massive motor structure, this sub can deliver staggering output without breakup or distortion. JL Audio uses sophisticated DMA (Dynamic Motor Analysis) technology which lets them shape, control and stabilize the driver's magnetic field strength to ensure ultra-linear motor force throughout its long excursion range. This allows the woofer to more faithfully track the input signal for greater bass definition and dynamics.

JL Audio e110 sub cutaway

This sub's driver bolts to the back of its braced cabinet to create a vault-like enclosure for clean, powerful bass.

The extended depth and wide gaps between the cone's rubber surround and dual spiders hold the woofer cone precisely in place as it moves, for the most accurate sound possible. To provide rigid mechanical coupling between driver and cabinet, the woofer's steel front mounting flange also forms the entire front baffle of the finished enclosure. The driver's back-plate is then threaded and bolted to the rear wall of the cabinet for additional support and rigidity. All of these careful steps produce a rock-solid structure for clear, low-distortion bass.

A custom designed amp with immense power

It takes a special amp to power the e112's massive driver. Fortunately, the 1,500-watt beast JL employs is more than up to the task. They developed a completely new amplifier with a regulated, switching power supply for the e112. This design approach allows the amplifier to be more compact, lightweight, and efficient, yet still deliver abundant, low-distortion power to extract peak performance from the sub's driver.

Convenient, top-mounted controls make adjusting the subwoofer easy. JL also provides a cover plate to hide and protect the controls during normal use. Another thoughtful touch is the rear panel switch that allows the line level inputs to be configured as grounded or isolated to help eliminate any ground-related noise problems. Plus, a switchable polarity and a fully variable phase control allow you to fine the sub's sound to better match your system and room.

For two-channel music fans with separate components or a compatible receiver, the e112 even includes a true, two-way built-in variable electronic crossover. The crossover's low-pass filtered output feeds the sub's own internal amplifier while the high-pass filtered signal exits through the sub's line outputs to the amp connected to your main speakers. This configuration allows for a more seamless integration between the sub and satellites.

JL Audio factory

All American muscle

To top things off, every e112 powered sub is built in JL Audio's U.S. factory in Miramar, Florida. Each unit is individually performance-verified and tested to deliver years of listening enjoyment in your music or home theater system.

Product Highlights:

  • frequency response 21-120 Hz (-3dB)
  • built-in 1,500-watt RMS amplifier
  • front-firing, long-throw 12" woofer
  • sealed (acoustic suspension) enclosure
  • continuously variable master level volume control
  • continuously variable low-pass crossover (25-130 Hz)
  • continuously variable phase control (0-280°)
  • polarity switch (0°, 180°) can help smooth the transition between subwoofer and main speakers
  • grounded/isolated switch can reduce any low-frequency hum coming through the line-level audio inputs
  • crossover switch to turn subwoofer's internal crossover on or off
  • top mounted controls
  • three position power switch: off/on/signal-sensing auto on
  • speaker-level inputs
  • line-level/LFE inputs
  • line-level outputs: selectable for full-range or variable (30-130 Hz) high-pass
  • black ash vinyl finish
  • 15-1/2"W x 16-1/4"H x 18-7/16"D
  • weight: 73.5 lbs.
  • warranty: 3 years
  • Our 60-day money-back guarantee

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

Hands-on research

What's in the box?

Download owner's manual

  • Powered subwoofer
  • Grille (attached)
  • 6.5' AC power cord
  • Owner's Manual

Product Research

Features

E-Sub series Powered Subwoofer: JL Audio E-Sub series subwoofer combines a state-of-the-art JL Audio subwoofer driver and electronics/amplifier package within a highly optimized enclosure to deliver an exceptional listening experience in your home theater or home audio system.

12" Woofer: The 12" subwoofer driver in the E112 subwoofer system is capable of outstanding linear excursion without distress or audible distortion. This custom-engineered driver enables the E112 to reproduce powerful low-frequency events with stunning impact and outstanding accuracy. The 12" subwoofer driver offers peak-to-peak excursion capabilities well in excess of 3" to comfortably handle the dynamics of the most demanding program material.

  • DMA Technology: JL Audio's exclusive DMA technology is applied to shape, control, and stabilize the woofer' motor strength, ensuring linear behavior over a very long excursion range. Unlike typical steady-state modeling systems, JL Audio's approach takes into account the dynamic shifts created by current flow and back EMF under real power conditions, with real program material. The payoff offered by DMA optimization is a subwoofer that more faithfully tracks its input signal at all listening levels, leading to superior bass definition and dynamics.
  • Floating Cone Attach Method (FCAM): JL Audio's patented FCAM technology is an innovative method of bonding the surround/cone assembly to the voice coil former/spider assembly. This feature helps ensure concentricity of the surround, spider and voice coil without torquing the suspension to achieve it. This allows for the inevitable, slight variations in production part dimensions without having them negatively impact the integrity of the suspension and coil-centering at high excursions.
  • Vented Reinforcement (VRC): The Vented Reinforcement Collar (VRC) is a composite structure that addresses two issues related to reliability. By reinforcing the critical junction between the cone, voice coil and spider, the VRC greatly reduces failures due to glue breakdown or material weakness. It does this by greatly increasing adhesive contact area and providing stress relief to the spider material at excursion extremes. By reinforcing the critical junction between the cone, voice coil and spider, the VRC greatly reduces failures due to glue breakdown or material weakness. It does this by greatly increasing adhesive contact area and providing stress relief to the spider material at excursion extremes
  • Extreme Mounting Depth: The extreme mounting depth of the E-Sub series woofer is very deliberate. It permits wide gaps to exist between the three suspension elements (the rubber surround and the dual spiders), imparting exceptional mechanical stability over the driver's full excursion range. This further improves linearity, reduces distortion, and enhances long-term reliability.
  • Engineered Lead-Wire System: Carefully engineered lead-wire design and attachments ensure controlled, quiet lead-wire behavior under the most extreme excursion demands.

1500W Amplifier: To power the E112, JL Audio engineered a completely new 1500W Class D amplifier with a regulated, switching power supply. This approach helps make the amplifier more compact, lightweight and efficient, while still delivering ample, clean power to fully exercise the 12" woofer's performance.

Rigid MDF Enclosure: The beautiful cabinet enclosing the workings of the E112 powered sub is also the result of careful engineering. To contain the pressures created by the 12" woofer, JL Audio utilized solid, CNC-cut, MDF material with extensive internal bracing features and advanced assembly techniques. The steel front mounting flange of the 12" woofer also forms the entire front baffle of the finished product, while the back-plate of the driver is threaded and bolted to the rear wall of its enclosure for support.

Top-Panel Controls: The built-in amplifier also incorporates a studio-grade signal-processing section, which is controlled from a panel on the top of the subwoofer cabinet (instead of on the back, like most other powered subs). An attractive cover is also included to hide and protect the controls during normal use.

  • Volume Level: The "Master Level" Knob is used to set the output level of the E112 relative to the rest of your audio system. When rotated fully counter clockwise, the E112's output will be fully muted. When at the "0" or straight up position, the level is at reference gain. When turned fully clockwise, the sub's level is at its maximum sensitivity (loudest).
  • Crossover: The built-in, active crossover (25-130Hz) is a true two-way, 4th order Linkwitz-Riley design, with a 24dB/octave low-pass filter feeding the subwoofer's amplifier and a 24dB/octave high-pass filtered signal exiting through a pair of line outputs. The on-board crossover can be defeated for home theater receiver's with an LFE output and its own built-in low-pass crossover.
  • Polarity & Phase Control: A polarity switch (0/180°) and phase control (0-280°) are provided to aid in achieving an optimal acoustic transition between the powered subwoofer and your main speakers.
Note: All signal processing is performed in the analog domain, ensuring very low latency in critical applications

Analog Inputs & Outputs: Analog inputs are provided for unbalanced line-level (RCA) signals or high-level (speaker) signals. Using a rear-panel switch, the line level inputs can be configured as grounded or isolated, which is very useful in combating ground-related noise problems. For receivers with a mono subwoofer or "LFE" outputs, only one RCA jack will be used (Left or Right). The line outputs deliver a pass-through signal that permits multiple E-Sub series powered subwoofer to be interconnected in a "daisy-chain" arrangement.

Auto Power On: The E112 powered subwoofer will power up its internal amplifier when it detects an audio signal at any of its inputs, and will power down the internal amplifier if no signal has been detected at its inputs for approximately 30 minutes. While dormant, the powered sub consumes less than 0.5 watts of power. You can also manually turn the powered sub on/off.

Note: The LED indicator will be amber when dormant and green when operational.

Applications: The E-Sub series powered subwoofer has been designed to allow use in a wide range of applications; from full home theater systems to dedicated two-channel music systems, to desktop audio workstations.

Placement: JL Audio recommends that you begin by placing the E-Sub powered subwoofer in the front of the room, on the floor, near the front left or right speaker. Placing the E-Sub powered sub 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. JL Audio also recommends that you avoid placing the E-Sub series powered sub near windows to prevent rattling and sound transmission to the outside world.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

JL Audio E-Sub e112 Reviews

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The Quest

Written By Rob, Abilene on Sunday, August 03, 2014

Crutchfield Customer Review (What's this?)

I have been searching for a sub now for about 6 months or so. Being from a small town, best buy and walmart are the only options without driving 3 hours or so. Yessss to the internet. I did a lot of reading but that goes only so far so it was time to start ordering from a few online stores I usually use. In my home was the only way to see what would work so first sub up was a Definitive Technology supercube 4000. Small and great sounding but as expected, was easy to distort with a bit of volume. Next up an svs pb-2000. A great new ported sub that had good sound but I needed a bit more power. I ordered a svs PC-12 plus, a downfiring cylinder that was awesome and perfect but came damaged. This is the only thing I hate about ordering anything. So my reorder could not happen because they were out. I could not wait so I ordered a svs pb 12 plus, a 168lb sub that sounded great but not like the PC-12plus as previous. So back it went while I contemplated building my own sub. I know as a kid we used JL subs I our cars because they could really get low. I knew JL made home subs but a Fathom was a bit out of my price range. I was wondering why Crutchfield didn't carry JL home subs and it was hard to find the E-sub that was coming available. Then one day, it happened. Crutchfield has them listed but not available yet so I put an E112 in ash on order. Waited, waited, then they all came available except the one in ash. I could not wait so I got the gloss.

Pros: I have not been able to cause this sub any pain with music or movies. For not being a ported sub, it sure does reach out and grab those low notes. That big amp sure makes the difference. It looks great in gloss, it has nice precise sound to it. I'm not an audiophile but I sure do like the way it sounds. It can shake the house and rock it too. It is a great complement to my system.

Cons: If anything, I would say price. Sometimes you got to say what the heck and just do it.

I finally got serious about subs

Written By Tom, Rochester NY USA on Saturday, July 05, 2014

With previous systems, primarily concerned with music over HT, I had always considered subs as role players, just filling in the lower frequencies where my main speakers couldn't go. I've had way too many subs in the $400-$1000 range, Velodyne/Polk/DefTech/PSB, typically doing small incremental upgrades along the way, but never could justify spending big for the small frequency range subs provide. With my latest main system upgrades (NAD T787, M50/52/51, PSB Synchrony speakers, Oppo BR) it became clear that even though I liked the PSB 300s, I had outgrown them if I wanted to get the most out of the other components. I checked out several other subs in the $1500-$2000 range over the past year+, but nothing got close to the JL Fathoms I heard at my dealer -- unfortunately, the price for the F-series had jumped considerably, was out of my league, since I need 2 subs for my wide living room with vaulted ceilings and large openings. Then came along the E-Series, at just the right time. No, they do not bring the ridiculously deep and tight bass of the Fathoms, but it is very close, I'd say ~85% of the performance for ~60% of the price. From a bang-for-the-buck perspective, the E-Subs provide a good taste of high-end with a price that is not off the charts. The E112 goes very low, for the bass heads, and is very quick and accurate, for audiophiles. Can handle higher cut-off without any loss of clarity. Finally a high-end sub at mid-level prices!

Pros: Quick and accurate, goes very deep, built like a tank, can easily handle anything you throw at them, blends in well at various cut-offs - rating is based on comparison of all auditioned subs up to $2000

Cons: a few design niggles with controls, but nothing that affects performance

Get everything you’ll need to enjoy your new JL Audio E-Sub e112

A better cable will give your subwoofer the tools it needs to recreate the deep bass on your music and movies. Cable is not included with this sub.
If you're going to connect your sub to your receiver with the speaker level inputs, you're going to need speaker wire. You may also want to add connectors. Wire is not included with this sub.
Protect your investment from power surges and interference.
Have your new equipment installed by qualified professionals.
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