Eighteen Sound 8NTLW2000

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.9dB
• Frequency response 70 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 71Hz
• Mechanical quality factor QMS 8.10
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.21

Large signal parameters

• Maximum linear excursion xmax 4.4mm
• Air volume displaced at xmax VD 100cm³
• Power handling P 350W
• Program power Pmax 700W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 0.63mH
• VC Diameter 51mm
• Winding height HVC 13mm
• Winding material Aluminum

Magnet

• Force factor Bl 17.5N/A
• Motor constant Bl/√RE 7.67N/√W
• Air gap height HAG 8.5mm

Diaphragm

• Effective diameter 170mm
• Effective area SD 227cm²
• Moving mass MMS 28g
• Moving mass (without air load) MMD 25.5g
• Material Water,UV repellent

Suspensions

• Stiffness KMS 5.59N/mm
• Compliance CMS 179µm/N
• Equivalent volume to the compliance VAS 13L
• Mechanical resistance RMS 1.54N·s/m

Dimensions

• Nominal diameter 8″
• 210mm
• Overall diameter 210mm
• Baffle cutout diameter 186mm
• Overall depth 121mm
• Flange thickness 9mm
• Mounting depth 112mm
• Volume occupied by the driver (estimated) 0.76L
• Net weight 1.5kg