Eighteen Sound 18LW1250-8

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Eighteen Sound 18LW1250-8 — 18" Woofer

The Eighteen Sound 18LW1250-8 is a professional 18" woofer developed for powerful bass reproduction in PA systems and subwoofer applications. With a 100 mm voice coil, ventilated magnet structure and robust cone material, it offers high sensitivity, low distortion and long life even under continuous load. Ideal for touring, installations and systems where deep bass and high SPL are required.

Technical data

  • Size: 18" (outer diameter approx. 460 mm, recess diameter 416 mm, depth ≈210 mm)
  • Impedance: 8 ohms
  • Sensitivity: ≈96 dB (1 W / 1 m)
  • Rated power: 700 W AES, max 1400 W continuous
  • Frequency range: 35–2000 Hz
  • Voice coil: 100 mm (4")
  • Magnet: Ferrite
  • Weight: ≈11.0 kg

Thiele/Small parameters

Fs: 35 Hz
Qty: 0.32
Qes: 0.33
Qms: 7.0
Re: 5.3 Ω
Weight: 190 g
Baffle cutout: 416 mm
Bolt circle diameter: 440 mm
Total depth: ≈210 mm

Recommended use

  • Subwoofer in professional PA systems
  • Cabinet: Bass reflex or horn, 120–200 dm³
  • Crossover guidelines: HP 35–40 Hz, LP up to 1–1.2 kHz
  • Designed for high SPL and robust long-term performance

Item no.

  • Manufacturer: Eighteen Sound
  • Model: 18LW1250-8
  • Category: Woofer / LF driver