Eighteen Sound 12NTLW3500-8

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Eighteen Sound 12NTLW3500-8 — 12" Neodymium Subwoofer

The Eighteen Sound 12NTLW3500-8 is a professional 12" neodymium subwoofer developed for extreme SPL applications in compact bass reflex cabinets. It combines very high power handling, low weight and long linear excursion. The design with 100 mm voice coil, powerful neodymium magnet and weather-protected cone provides reliable operation even under continuous load. The element is optimized for sub-bass applications where both SPL and endurance are crucial.

Technical data

  • Size: 12" (310 mm outer diameter, 288 mm recess diameter, 150 mm depth)
  • Impedance: 8 ohms
  • Sensitivity: 92 dB (1 W / 1 m)
  • Rated power: 1500 W AES, 3000 W program
  • Frequency range: 35–1000 Hz
  • Voice coil: 100 mm copper, ISV technology
  • Magnet: Neodymium
  • Weight: ~7.0 kg

Thiele/Small parameters

Fs: 35 Hz
Qty: 0.22
Qes: 0.24
Qms: 6.0
Vase: 60 L
Sd: 530 cm²
Weight: 140 g
BL: 28 T·m
Xmax: ±12 mm
Efficiency: 2.5 %

Recommended use

  • High-power bass reflex cabinet (50–90 L, tuned to approx. 35–45 Hz)
  • Sub-bass applications in PA systems
  • Crossover guidelines: HP 30–40 Hz, LP up to 120–150 Hz
  • Installations where low weight and extreme SPL are preferred

Item no.

  • Manufacturer: Eighteen Sound
  • Model: 12NTLW3500-8
  • Category: Cone driver / Subwoofer
Eighteen Sound 12NTLW3500-8 product image