JL Aud F110 RearJL Aud F110 No Grille


The Fathom f110 is the most compact subwoofer in the Fathom lineup but is fully capable of delivering stellar performance in smaller spaces. The combination of an ultra-long throw W7 10-inch driver and a very powerful switching amplifier give it the kind of output normally associated with far larger subwoofer systems.

Because it is built with the same driver and amplifier technology as our flagship Gotham, the f110 delivers a tremendous level of sound quality. Low distortion, excellent dynamic capabilities and shockingly deep bass extension will allow you to experience all the excitement of the most demanding cinematic material, while also being able to reproduce all the nuance and texture of your most delicate musical material.

A complete set of signal processing features is easily accessible on the front surface of every Fathom. These include a highly flexible low-pass filter, variable phase, switchable polarity, e.l.f. trim and our powerful Automatic Room Optimization (A.R.O.) system. A calibrated microphone is included for the A.R.O. system. Input connections are made via unbalanced RCA connections or balanced Neutrik® combo XLR/TRS jacks. Also included is an XLR output to connect a second Fathom as a slave unit.


Enclosure Type Sealed
Enclosure Finish Black Gloss
Frequency Response (Anechoic) 27 Р111 Hz (±1.5dB)-3 dB at 25 Hz / 120 Hz-10 dB at 19 Hz / 155 Hz
Effective Piston Area (Sd) 60 sq in / 0.0387 sq m
Effective Displacement 160 cu in / 2.6 L
Amplifier Power 900 W RMS short-term
Power Modes Off, On or Automatic (Signal-Sensing)
Light Modes Off, On or Dim


The f110’s sonic capabilities are staggering and far exceeded my expectations, especially given their compact size and 10-inch driver pedigree. Two-channel music took on new dimension and palpability with the f110s in my system. Movie soundtracks, especially bass tracks, be they a film’s score or sound effects, were absolutely epic. I was stunned at the sheer amount of air the f110s were capable of moving yet still remain focused and refined. At one point my pants legs were flapping from the f110s output from a distance of 10 feet. The most impressive part of the f110s performance was their ability to seamlessly integrate into my system and disappear from my room, for I couldn’t discern where my 800 Diamonds stopped and the f110s began nor could I locate their presence in my room even when I visually fixated on their location. Even when I disconnected one of the f110s I was still treated to a wonderful low-end performance that was taut, detailed and above all musical, though having two f110s in my system was nothing short of perfection. For my money and needs I’m not sure it gets better than the f110s, though if you had a larger room (and didn’t live in a house built in the 1940’s) I could see the allure of some of JL Audio’s larger designs, especially their flagship Gotham g213. Read More