JL Audio D108 Subwoofer

Regular price $1,400.00

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Why JL Audio D108 is your best choice in subwoofers 

Of all the subwoofer brands out there, save your time - there are only two choices; REL of JL Audio. So lets dig in see why we recommend JL Audio.

1) Speaker level input

1) Fundamental to REL's approach is a speaker level connection that is believed to offer good synchronozation between speakers and subwoofer.  There are pros and cons, the main issue is that direct speaker connection loads the amplifier. While JL Audio also has speaker level inputs, and you can hook it up the same way as REL, you may want to use RCA line level to be safe.

3) Sealed vs Bass Reflex 

The ability to start and stop on a dime is desirable. To hear the pluck of a stringbass, the punch of an exposion.  The sealed cabinet design of JL Audio is better at starting and stopping - just as a car's shock ansorbers stop wallowing.  Ported designs such a REL push out more bass, but have less control. 

Meet the JL Audio D108 - Small but Mighty

8" dia. subwoofer driver, sealed enclosure, 500W RMS

Born from JL Audio’s vast collection of advanced technologies, Dominion powered subwoofers combine a state-of-the-art Subwoofer and an advanced Class D amplifier to deliver unmatched performance and value for a wide variety of compact applications.

Purpose Built Driver

Purpose-built to reproduce powerful low-frequency events with stunning impact and precision, the Dominion driver employs JL Audio’s exclusive DMA (Dynamic Motor Analysis) technology to produce higher output levels with reduced distortion, as well as improved dynamic tracking and resolution. As a result, Dominion subwoofers are capable of peak-to-peak excursions well in excess of 2.5-inches (63 mm - d108), and 2.7 inches (68 mm – d110), without distress or audible distortion.

Dominion amplifiers utilize an advanced Class D design in order to extract the most from the long-excursion driver platform. This design features a tightly regulated switching power supply, allowing the amplifier to generate prodigious amounts of unclipped output voltages. These technologies ensure that the Dominion® powered subwoofers remain in their comfort zone, which is well beyond the point where most small subwoofers run out of power or driver capability.

With a host of signal processing features included, Dominion powered subwoofers can be integrated into most systems with ease. Low-pass signals are precisely guided, thanks to the onboard crossover’s 24 dB/octave Linkwitz-Riley alignment. Phase and polarity controls are onboard to aid in achieving the optimal acoustic transition between the subwoofer(s) and main speakers. Flexible input options are on-hand to accept either line-level or speaker-level signals. Connect a JLINK™ TRX system (sold separately) to the onboard Wireless Link port and enjoy the freedom to position your Dominion® almost anywhere, up to 100 feet (30 meters) away from your source unit.

To contain the immense pressures created by the Dominion driver, each beautiful cabinet is carefully engineered and constructed using solid, CNC-cut, MDF material with extensive internal bracing and advanced assembly techniques. All Dominion powered subwoofers are built with pride and precision in JL Audio’s U.S. factory to deliver years of listening enjoyment.


AudioVideo Revolution Logo 

"If you are looking for the last missing piece for your system -- the sense of lifelike weight and scale -- and don't want to break the bank, I can’t possibly recommend the JL Audio Dominion subwoofer series highly enough."

-Andre Marc, Audio Video Revolution, March 2016


  • Enclosure Type                  Sealed
  • Enclosure Finish                Black Ash, Gloss
  • Frequency Response (Anechoic)     31 - 112 Hz (±1.5dB)
  • -3 dB at 29 Hz / 119 Hz
  • -10 dB at 21 Hz / 143 Hz
  • Effective Piston Area (Sd)   32.18 sq in / 0.0208 sq m
  • Effective Displacement       80 cu in / 1.3 L
  • Amplifier Power                  500 W RMS short-term
  • Power Mode                        Automatic (Signal-Sensing)
  • Dimensions (H x W x D): 11.37 in. x 10 in. x 13.23 in. 289 mm x 254 mm x 336 mm

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