Creating a system you love shouldn't be difficult. The Acoustic Frontiers blog is here to help.
“I'm excited to offer JL Audio's new E-Sub series subwoofers to my clients. These subs are truly high performance pieces that combine proprietary long travel drivers with high power amplifiers in compact, nicely finished sealed enclosures. But the thing I really love is that they have proper bass management capabilities - in the form of a variable high pass output - that will allow me to perfectly integrate them with any speaker system out there.” — Nyal Mellor, Founder Acoustic Frontiers
JL Audio E-Sub subwoofers combine 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. The subwoofer driver in the E-Sub subwoofer system is capable of outstanding linear excursion without distress or audible distortion. This purpose-engineered driver enables the E-Sub to reproduce powerful low-frequency events with stunning impact and outstanding accuracy. The E-Sub drivers offer peak-to-peak excursion capabilities well in excess of 2.5 inches (E110) or 3 inches (E112) to comfortably handle the dynamics of the most demanding program material.
To get the most from this long excursion driver platform, the E-Sub incorporates a precisely engineered switching amplifier. The E-Sub amplifiers are capable of unclipped output voltages equivalent to 1200W (E110) or 1500W (E112) RMS power, allowing us to take full advantage of each driver’s full excursion envelope. The beautiful cabinet enclosing the workings of the E-Sub is also the result of careful engineering. To contain the pressures created by the E-Sub driver solid, CNC-cut, MDF material with extensive internal bracing features is utilized together with advanced assembly techniques. The E-Sub's also include an on-board 2-way active crossover, permitting them to support a conventional 2-channel audio system by providing a high-pass filtered output to the main speakers’ amplifier, while delivering a low-pass filtered signal to the internal subwoofer amplifier. A polarity switch and phase control are provided 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 speaker level inputs.  JL Audio E110 Subwoofer:
 JL Audio E110 Subwoofer:
JL Audio E112 Subwoofer:
 
 The IWS is THE best in wall sub on the market. The output of one sub is equivalent to a Fathom F112. The cabinet is extremely robust, made of a matrix CNC plywood assembly. The gimbal mounting method is also unique and significantly reduced vibrations coupled into the structure from the sub. In wall subs are a great way to free up floor space and reduce clutter in your listening room or home theater. They are also an option with much higher 'SAF' (spouse acceptance factor) since all you see once they are installed is the grille (which can be painted for a completely custom look)!
 The IWS is THE best in wall sub on the market. The output of one sub is equivalent to a Fathom F112. The cabinet is extremely robust, made of a matrix CNC plywood assembly. The gimbal mounting method is also unique and significantly reduced vibrations coupled into the structure from the sub. In wall subs are a great way to free up floor space and reduce clutter in your listening room or home theater. They are also an option with much higher 'SAF' (spouse acceptance factor) since all you see once they are installed is the grille (which can be painted for a completely custom look)!  
 The lucky few who have heard a well-integrated subwoofer in a great audio system know that the subwoofer's effect is profound. While everyone expects the bass extension to improve, most are shocked at the transformation that occurs in the main speakers. They simply open up, delivering improved dynamics, superior imaging and more low-level detail. Many describe it as the greatest speaker upgrade they have ever made. The CR-1 Active Subwoofer Crossover has been designed by audiophiles, for audiophiles. It offers a powerful combination of subwoofer/satellite tuning features, and a complete commitment to analog signal purity. To minimize distortion and noise, CR-1 employs top-grade component parts in its all-analog audio circuitry: 1% precision resistors, JFET-input audio-grade op-amps, polypropylene film-and-foil capacitors and metallized-polypropylene film capacitors, to name just a few. We also build CR-1 right here in the U.S.A., to ensure top quality and dependability.  Another of CR-1's unique and powerful features is a pair of rotary controls that control the damping of each filter bank. These damping controls dramatically improve the acoustic summing through the crossover region, by compensating for each speaker system's frequency response. At the center of the front panel, a single intuitive, rotary control permits quick adjustment of the relative level between the subwoofer(s) and main speakers. CR-1's input-output design makes it equally adaptable to studio, mastering suite or audiophile two-channel playback environments. To accommodate dual-mode systems, we also include a bypass feature that engages a pass-through from a dedicated "Managed Bass Input" on the rear panel, to the CR-1's subwoofer outputs. This makes it convenient to switch from two-channel to multi-channel mode. Specifications:
 The lucky few who have heard a well-integrated subwoofer in a great audio system know that the subwoofer's effect is profound. While everyone expects the bass extension to improve, most are shocked at the transformation that occurs in the main speakers. They simply open up, delivering improved dynamics, superior imaging and more low-level detail. Many describe it as the greatest speaker upgrade they have ever made. The CR-1 Active Subwoofer Crossover has been designed by audiophiles, for audiophiles. It offers a powerful combination of subwoofer/satellite tuning features, and a complete commitment to analog signal purity. To minimize distortion and noise, CR-1 employs top-grade component parts in its all-analog audio circuitry: 1% precision resistors, JFET-input audio-grade op-amps, polypropylene film-and-foil capacitors and metallized-polypropylene film capacitors, to name just a few. We also build CR-1 right here in the U.S.A., to ensure top quality and dependability.  Another of CR-1's unique and powerful features is a pair of rotary controls that control the damping of each filter bank. These damping controls dramatically improve the acoustic summing through the crossover region, by compensating for each speaker system's frequency response. At the center of the front panel, a single intuitive, rotary control permits quick adjustment of the relative level between the subwoofer(s) and main speakers. CR-1's input-output design makes it equally adaptable to studio, mastering suite or audiophile two-channel playback environments. To accommodate dual-mode systems, we also include a bypass feature that engages a pass-through from a dedicated "Managed Bass Input" on the rear panel, to the CR-1's subwoofer outputs. This makes it convenient to switch from two-channel to multi-channel mode. Specifications:

Nyal Mellor, Founder, Acoustic Frontiers
Nyal Mellor
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