GoldenEar ForceField 4 Subwoofer – Parts/Repair, Amp Needs Work

GoldenEar ForceField 4 Subwoofer – Parts/Repair, Amp Needs Work

Listed as-is for parts or repair: a GoldenEar ForceField 4 powered subwoofer with a very good cabinet and a known-good 10-inch woofer, but with an amplifier board that requires service. An honest, transparent listing for a technically minded buyer or repair shop looking to bring a serious GoldenEar sub back to life at a fraction of replacement cost.

The ForceField 4 is the popular mid-line GoldenEar powered subwoofer — a 1,200-watt-rated DSP-controlled design with a custom front-firing 10-inch long-throw woofer, an 11 x 13 inch quadratic planar down-firing passive radiator, and the elegant non-parallel-wall cabinet that gives the ForceField line its distinctive look and exceptionally low standing-wave behaviour. When working as designed, the ForceField 4 produces remarkably deep, tuneful bass for its compact footprint — but every ForceField is only as good as its amplifier, and the amplifier on this particular unit requires service.

Honest condition disclosure:

Cabinet: Very good cosmetic condition, no significant marks or damage

Woofer: Tested, in very good working condition

Passive radiator: Intact and undamaged

Amplifier board: Requires service — sold as-is, with no representation that the amplifier is functional in its current state

Best suited for: A technically capable buyer, a repair shop, or an existing ForceField 4 owner needing a parts donor (cabinet, woofer, radiator, grille, or feet)

Service options for the next owner:

A replacement amplifier board direct from GoldenEar is typically available through the company’s service channel, and is the cleanest path back to full original-spec performance

Independent repair to the existing board (capacitor replacement, output stage rework) is feasible for many of the common ForceField amplifier failure modes

The cabinet, woofer, and passive radiator are the costly, hard-to-replace parts in any subwoofer — having those in known-good condition is most of the value of the original unit

Specifications (as designed, for reference):

Built-in amplifier: 1,200-watt RMS digital with DSP frequency-shaping (currently requires service)

Driver: Custom front-firing 10 in. long-throw woofer

Passive radiator: 11 x 13 in. quadratic planar, down-firing

Frequency response: 14 – 250 Hz

High-pass filter (speaker-out): 150 Hz

Low-pass filter: 40 – 150 Hz, variable

Inputs: LFE line-level mono RCA, plus L/R speaker-level inputs

Outputs: L/R speaker-level outputs with built-in 150 Hz high-pass filter

Cabinet: Bass-reflex with non-parallel walls (narrower top, wider bottom)

Feet: Soft, energy-absorbing (originals included)

Dimensions (W x H x D): 13.375 x 13.125 x 17.875 inches (340 x 333 x 454 mm)
Weight: 32 lbs (14.5 kg)

A genuine high-value parts-or-repair opportunity — a complete GoldenEar ForceField 4 with a solid cabinet, working woofer, and intact passive radiator, priced specifically for a buyer who can address the amplifier issue and bring a USD $799 / CAD $1,200 sub back into service.

Sold as-is for parts or repair. No warranty applies to as-is parts/repair listings.