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ESS 689-12P 12" Cast Frame Passive Radiator

Brand:|Model: 689-12P|Part # 264-626

The ESS 689-12P 12" passive radiator augments a loudspeaker system's bass response, and is an exact cosmetic match for ESS active woofers.
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Part # 264-626
  • Treated and reinforced paper cone with rubber half-roll surround
  • Attractive, sturdy cast aluminum frame keeps components in alignment
  • Linear suspension system for maximum bass and minimum distortion
  • Superior transient response guarantees highly accurate sound reproduction
  • Engineered to match ESS active woofers

Product Details

ESS 689-12P 12" Cast Frame Passive Radiator

The ESS 689-12P 12" passive radiator is engineered to match ESS active woofers cosmetically while helping the speaker system achieve excellent bass response. A treated paper cone with half-roll rubber surround provides a fast, well-damped structure that offers an extended lifetime of service.

Passive radiators are a viable alternative to traditional ducted ports. Their paper diaphragm is a mechanical substitute for a port's air load, and tuning is achieved by adding mass instead of adjusting port diameter and length. Passive radiators are especially useful when a speaker's projected optimum port length exceeds available cabinet depth.

ESS – Sound as Clear as Light

Specifications: • Fs: 18 Hz • Vas: 4.44 cu. ft. • Qms: 2.30 • Cms: 0.31 mm/N • Mms: 250 g • Rms: 12.4 kg/s • Sd: 535.8 sq. cm. • Xmax: 11 mm • Dimensions: Overall diameter: 12-3/8", Cutout diameter: 11-1/8", Depth: 3-1/2".

Product Specifications
  • Nominal Diameter12"
ESS 689-12P 12" Cast Frame Passive Radiator
  • BrandESS Labs Inc.
  • Model689-12P
  • Part Number264-626
  • UPC844632007927
  • Product CategoryPassive Radiators
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight3.2 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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ESS 689-12P 12" Cast Frame Passive Radiator

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