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  FV18 Direct Servo subwoofer
18" ported audiophile sub with 900WRMS amplifier

LFE meets accuracy and control

FV18 is our answer to the need for a high power home theatre solution that retains the dynamic and accurate bass that we have become known for. Correctly integrated, our vented subwoofers can achieve the tight bass normally associated with a sealed enclosure, yet with greater low frequency output. We recommend this subwoofer for systems in which home theatre has a high priority.

Direct Servo Technology

All our subwoofers use our patented Direct Servo technology. The servo enables precise control over the cone which is essential for tight, dynamic and accurate bass. It also counteracts many different driver non-linearities and allows us to use lighter drivers which avoid the need for excessive amounts of amplifier power.

Some of the benefits of Direct Servo include:

  • Reduction of the effects of thermal compression are eliminated under normal operation
  • Higher efficiency allowing output which would normally require a more powerful amplifier
  • Deep bass extension can be achieved using a low mass driver with superior transient response
  • Mechanical and thermal memory effects are reduced, further improving transient response
  • The effective Q value is 0.1 resulting in much tighter and accurate bass than conventional designs
  • Dramatic reduction of the re-radiation of bass from inside the box

Read more about Direct Servo in our technology section.

View animation demonstrating how Direct Servo works >

HX1000XLR3 Amplifier and DS1820 Driver

FV18 comes with a grille. The above photo is shown with grill taken off. It uses our new high power HX1000XLR3 servo amplifier and DS1820 driver. DS1820 features anodized aluminum cone, a 3" voice coil, and 240 oz magnet. Its linear excursion range is +/- 20mm.

The standard amplifier is HX1000XLR3. The quickguide of the XLR3 amplifier for vented subs can be found here . The FV18 installation guide can be found here . The response curves with various extension frequency/damping combinations of both amplifiers can be found in our EQ page.

The sub comes with standard screw-in rubber feet. Chrome spike feet are sold separately.

Black cones are made of anodized aluminum. Silver cones are made of non-anodized aluminum in order to retain the shine.

Price includes freight shipping to 48 US continental states only. Picking up directly from UPS freight terminal saves $100 per order. Shipping to other region or country should inquire us for actual cost.

  Description: FREE SHIPPING to 48 US continental STATES Price  
  FV18 black oak grain finish with HX1000XLR3 amplifier and multi-tune $1699 buy it now
  Customer picks up from UPS freight terminal (per order, not unit) $-100 buy it now
  2 large furniture mover pads for carpet (add-on for FV18 order) $0 buy it now
  2 large furniture mover pads for hard floor (add-on for FV18 order) $0 buy it now

  Description: Other Options Price  
  Change to silver cone driver for one subwoofer $100 buy it now