Peerless FSL-1225R02-08

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.2dB
• Frequency response 50 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 63Hz
• Mechanical quality factor QMS 4.19
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 5.3mm
• Air volume displaced at xmax VD 288cm³
• Power handling P 233W
• Program power Pmax 466W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 0.536mH
• VC Diameter 65.5mm

Magnet

• Force factor Bl 14.9N/A
• Motor constant Bl/√RE 6.35N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 264mm
• Effective area SD 547cm²
• Moving mass MMS 50.1g
• Moving mass (without air load) MMD 41.3g
• Material Paper

Suspensions

• Stiffness KMS 7.69N/mm
• Compliance CMS 130µm/N
• Equivalent volume to the compliance VAS 54.8L
• Mechanical resistance RMS 4.73N·s/m
• Surround material Fabric

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 2.1L
• Net weight 4.92kg
• Frame material Pressed Steel