GoldenEar Technology ForceField 4 Subwoofer

I am selling my last Goldenear Forcefield 4 subwoofer in superb condition (conservatively rated 8/10), in the original box and polystyrene packaging.

Forcefield 4's were a very popular option and, unlike the Forcefield 40 subs that replaced them ($1200 each new), feature speaker-level inputs and outputs, which really are the best way of connecting subs to a two channel system.

Very musical, they produce extremely tight and accurate bass and a perfect option for anyone looking to add low end weight to high quality speakers. Their infrasonic radiator helps to take bass down to stygian levels.

The Forcefield 4's also have a modest footprint and look great in any system.

This is only for sale as I've decided on a different speaker path. I originally had two in a dual sub configuration but one is now sold. It is a fantastic sub and I certainly can't do better than Goldenears' product narratives below:

The compact 10 inch subwoofer ForceField 4 incorporates the same 1200-watt digital amp developed for the Triton Two. It drives a front-mounted high-power ultra-long-throw 10” sub-bass driver coupled to a downward-firing 11”x 13-7/8” quadratic planar infrasonic radiator.

GoldenEar's engineering team set out to accomplish the best of both worlds with the new ForceField subwoofers: small size, yet with the smooth & wide response of a larger sub. There's no sleight of hand, just great engineering - all ForceField subwoofers share the same technologies, here is a list of their features. Read through these and then take a good demo disc into your GoldenEar dealer's sound room and listen for yourself.

Custom-designed high-output drivers with very large motor assemblies. These drivers handle massive power, have very long excursions, and have ultra-low distortion. Rigid cabinets with non-parallel sides to minimize standing waves and distortion. The drivers are front firing in all of our subwoofers for optimal performance. The cabinets' possess a unique and understated shape and style that matches well with any décor. The driver's response is enhanced with a carefully tuned, down-firing, quadratic-shaped passive radiator (no noisy ports on ForceField subs). The quadratic shape allows the radiators to use maximum surface area on the bottom of the cabinets and gets even greater output from the slot-loading that results from the subwoofers' interface with the floor (see next point). The soft, energy-absorbing feet provided with every ForceField sub serve a number of functions. First, they hold the subwoofer at the correct distance off the floor so the passive radiator slot-loads with it for significantly increased output at the lowest frequencies. Second, the soft feet keep the subwoofer from dancing around on the floor. ForceField subwoofer amplifiers are designed in-house by GoldenEar engineering, so each is the perfect amp to power its specific subwoofer model. In addition, the amps all have powerful DSP sections to optimize frequency response, minimize distortion and prevent damage from overdriving. These amplifiers are all low distortion and extraordinarily powerful for reproducing seriously high-output AND low bass. ForceField subs all have speaker-level inputs and outputs (with a high pass crossover on the outputs) as well as a direct LFE input, too.

FORCEFIELD 4 SPECIFICATIONS
Dimensions: 13-1
/2" W x 17- 7
/8" D x 12- 3
/4" H (height is with feet installed). Frequency Response: 14 Hz – 250 Hz. Driver Complement: One 10" long-throw high-output bass driver, One 11" x 13" quadratic planar infrasonic radiator. Amplifier: 1200-Watt ForceField digital amplifier. Speaker Level High-Pass Filter: 6 dB per octave at 150 Hz (approx.). Speaker Level Low-Pass Filter: 12 dB per octave continuously variable from 40 – 150 Hz. Low-Level Input (Mono): Unfiltered (no low pass), direct-coupled.