WESTEC DISTRIBUTION

Wholesale Distributors for the Car Audio, Auto Electrical, Home Theatre,
Communication, Commercial AV and Consumer Electronic Markets

Servicing Western Australia Since 1984
For ordering call 08 9240 2233 Monday to Friday from 8:30AM to 4:30PM

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EARTHQUAKE 12" PASSIVE TUNED RADIATOR

This Earthquake passive radiator can be installed just like a subwoofer, and has a slim-mount design that is only 3 inches deep.
Code: SLAPS12
Brand: EARTHQUAKE

Features

  • Installs just like a subwoofer
  • Slim-mount design is only 3-inches deep
  • No increase over existing sealed subwoofer enclosure sizes
  • Easy tuning for quick adjustments
  • Increases output without added amplifier power or enclosure volume
  • Suitable for high output needs where space is limited
  • User-tunable adjustments can be set to match a range of vehicle requirements and musical preferences
  • Compatible replacement for damaged Sunfire passive radiator

 

Specifications

  • Overall Diameter: 12.37″ 314.2 mm
  • Cutout Diameter: 11.37″ 289 mm
  • Mounting Depth: 2.25″ 53.3 mm
  • Hex Nut Size: US 5/16″ (M8)
  • Mass ID: 5/16″ (8mm)
  • Max Mass OD: 2-7/8″ (74mm)

 

TS Parameters

All Measurements Are With Zero Added Mass
Assuming Surround Losses of Qmd = 7 @ 20Hz

  • Mass to Deflection: 7.074 kgs
  • Deflection in Meters, X: 0.02 m
  • CMS, CMP: 0.000288201 N⋅m
  • Diameter Peak to Peak, D: 25 cm
  • Active Piston Area Sd: 490.875 cm²
  • Active Piston Area Sd: 0.0490875 m²
  • Vas in Liters: 98.61116866 L
  • Vas in Cubic Feet: 3.472224249 ft3
  • Air Mass Mmr In Kgs: 0.006253515 kgs
  • Air Mass Mmr In Grams: 6.253515291 g
  • Moving Mass In Grams: 213 g
  • Mms = Mmp In Grams: 219.2535153 g
  • Free Air Resonance Fs = Fp: 20.02155789 Hz
  • Peak to Peak Excursion in/cm: 4″ / 10.16 cm
  • Qms: 8.5
  • Qts: 0.35