Eighteen Sound 12W500-8

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Eighteen Sound 12W500-8 — 12" Ferrite Woofer

The Eighteen Sound 12W500-8 is a professional 12" ferrite woofer developed for compact bass reflex cabinets and two-way systems. It combines high sensitivity, robust power handling and stable performance. The design with 64 mm voice coil, ferrite magnet and weather-protected cone provides reliable operation even under continuous load. The element is optimized for mid-bass applications where both SPL and linearity are crucial.

Technical data

  • Size: 12" (310 mm outer diameter, 288 mm recessed diameter, 120 mm depth)
  • Impedance: 8 ohms
  • Sensitivity: 96 dB (1 W / 1 m)
  • Rated power: 300 W AES, 600 W program
  • Frequency range: 50–4000 Hz
  • Voice coil: 64 mm copper
  • Magnet: Ferrite
  • Weight: ~6.0 kg

Thiele/Small parameters

Fs: 50 Hz
Qty: 0.33
Qes: 0.35
Qms: 6.0
Vase: 55 L
Sd: 530 cm²
Weight: 40 g
BL: 15 T·m
Xmax: ±5 mm
Efficiency: 3.0 %

Recommended use

  • Compact two-way systems with bass reflex cabinet (30–50 L, tuned to approx. 55–65 Hz)
  • Midbass applications in PA systems
  • Crossover guidelines: HP 55–65 Hz, LP up to 2.5–3 kHz
  • Installations where robust ferrite construction is preferred

Item no.

  • Manufacturer: Eighteen Sound
  • Model: 12W500-8
  • Category: Cone driver / Woofer