Eighteen Sound 12NMB1000-8

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Eighteen Sound 12NMB1000-8 — 12" Neodymium Midbass Woofer

The Eighteen Sound 12NMB1000-8 is a professional 12" midbass woofer developed for high-power two-way systems and compact bass reflex cabinets. It combines high sensitivity, low weight thanks to a neodymium magnet and robust power handling. The design with a 100 mm voice coil, advanced cooling and weather-protected cone provides reliable operation even under continuous load. The element is optimized for midbass applications where SPL, linearity and portability are crucial.

Technical data

  • Size: 12" (310 mm outer diameter, 288 mm recessed diameter, 145 mm depth)
  • Impedance: 8 ohms
  • Sensitivity: 98 dB (1 W / 1 m)
  • Rated power: 500 W AES, 1000 W program
  • Frequency range: 50–4000 Hz
  • Voice coil: 100 mm copper, ISV technology
  • Magnet: Neodymium
  • Weight: ~6.5 kg

Thiele/Small parameters

Fs: 50 Hz
Qts: 0.27
Qes: 0.29
Qms: 6.2
Vase: 65 L
Sd: 530 cm²
Weight: 75 g
BL: 21 T·m
Xmax: ±7 mm
Efficiency: 3.4 %

Recommended use

  • Compact two-way systems with bass reflex cabinet (40–70 L, tuned to approx. 55–65 Hz)
  • Midbass applications in PA systems
  • Crossover guidelines: HP 50–60 Hz, LP up to 2.5–3.5 kHz
  • Installations where low weight and high SPL are preferred

Item no.

  • Manufacturer: Eighteen Sound
  • Model: 12NMB1000-8
  • Category: Cone driver / Midbass Woofer
Eighteen Sound 12NMB1000-8 product image