Eighteen Sound 12MB650-8

  • 307,68 €
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Eighteen Sound 12MB650-8 — 12" Ferrite Midbass Woofer

The Eighteen Sound 12MB650-8 is a professional 12" midbass woofer developed for compact two-way systems and bass reflex cabinets. It combines high sensitivity, stable power handling and controlled frequency response. The design with 75 mm voice coil, ferrite magnet and weather-protected cone provides reliable operation even under continuous load. The element is optimized for midbass applications where both SPL and linearity are crucial.

Technical data

  • Size: 12" (310 mm outer diameter, 288 mm recessed diameter, 135 mm depth)
  • Impedance: 8 ohms
  • Sensitivity: 97 dB (1 W / 1 m)
  • Rated power: 400 W AES, 800 W program
  • Frequency range: 55–4000 Hz
  • Voice coil: 75 mm copper, ISV technology
  • Magnet: Ferrite
  • Weight: ~7.8 kg

Thiele/Small parameters

Fs: 55 Hz
Qts: 0.29
Qes: 0.31
Qms: 6.0
Vase: 58 L
Sd: 530 cm²
Weight: 68 g
BL: 18.5 T m
Xmax: ±6 mm
Efficiency: 3.3 %

Recommended use

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

Item no.

  • Manufacturer: Eighteen Sound
  • Model: 12MB650-8
  • Category: Cone driver / Midbass Woofer
Eighteen Sound 12MB650-8 product image