Peerless FSL-1830R09-08

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93dB

Thiele & Small parameters

• Resonance frequency (free air) fS 31.7Hz
• Mechanical quality factor QMS 13.40
• Electrical quality factor QES 0.60
• Total quality factor QTS 0.58

Large signal parameters

• Maximum linear excursion xmax 12.6mm
• Air volume displaced at xmax VD 1544cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.4Ω
• Inductance (1kHz) LE 1.55mH
• VC Diameter 75.7mm
• Former material Glass Fiber

Magnet

• Force factor Bl 21.6N/A
• Motor constant Bl/√RE 7.95N/√W
• Air gap height HAG 10mm

Diaphragm

• Effective diameter 395mm
• Effective area SD 1225cm²
• Moving mass MMS 191g
• Moving mass (without air load) MMD 161g

Suspensions

• Stiffness KMS 7.58N/mm
• Compliance CMS 132µm/N
• Equivalent volume to the compliance VAS 281L
• Mechanical resistance RMS 2.83N·s/m

Dimensions

• Nominal diameter 18″
• 457mm
• Volume occupied by the driver (estimated) 5.5L
• Net weight 12.02kg