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8-inch (200 mm) Powered Subwoofer, Black Ash Finish

JL Audio DOMINIONRD108ASH

Quick Specs

  • Type: Subwoofers
  • Energy Star Rated: No
 

Powered Subwoofer with 8-inch Subwoofer, 500 watts


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 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.

Finish: Black Ash

Grille Finish: Black Fabric

Enclosure Construction: MDF



Technology

Dynamic Motor Analysis - DMA Optimized Motor

JL Audio's proprietary Dynamic Motor Analysis system is a powerful suite of FEA-based modeling systems, first developed by JL Audio in 1997 and refined over the years to scientifically address the issue of speaker motor linearity. This leads to vastly reduced distortion and faithfully reproduced transients... or put simply: tight, clean, articulate bass.


Vented Reinforcement Collar

JL Audio's Vented Reinforcement Collar (VRC™) improves the rigidity and stability of the cone/spider/voice coil junction and directs airflow over the voice coil windings for improved thermal performance.


Floating Cone Attach Method - FCAM™

This assembly technique, conceived by JL Audio, ensures proper surround geometry in the assembled speaker for better excursion control and dynamic voice coil alignment.


Engineered Lead-Wire System (U.S. Patent #7,356,157)

Carefully engineered lead-wire design and attachments ensure controlled, quiet lead-wire behavior under the most extreme excursion demands.


Built in U.S.A. with Global Components

JL Audio's Miramar, Florida loudspeaker production facility is one of the most advanced in the world.


General Specifications
Enclosure Type Sealed
Enclosure Finish Black Ash
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)
Light Modes N/A
Signal Processing
Unbalanced Inputs Stereo or Mono (two RCA jacks)
Balanced Inputs N/A
Speaker/High-Level Inputs Stereo or Mono (removeable plug)
Input Grounding Isolated or Grounded
Input Modes N/A
Level Control Variable, from full mute to +15dB over reference gain
Filter Mode(s) Low-Pass
Filter Slope(s) 24 dB/octave
Filter Frequency Range 25 Hz - 130 Hz
Filter Defeat Function Yes
Polarity 0 or 180 degrees
Phase Variable, 0- 280 degrees, referenced to 80 Hz
Extreme Low Frequency (E.L.F.) Trim N/A
Line Outputs N/A
Output to Slave N/A
Calibration Mode N/A
Physical Specifications
Width (W) 10 in / 254 mm
Height (H) 11.37 in / 289 mm
Depth (D) 13.23 in / 336 mm
Net Weight 26.4 lb / 12 kg

Quick Specs


  • Appearance

  • Type: Subwoofers

  • Features

  • Energy Star Rated: No

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

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Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.