SEAS H1209-08 L26RFX/P

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.5dB
• Frequency response 20 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 20Hz
• Mechanical quality factor QMS 2.15
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 17.5mm
• Air volume displaced at xmax VD 231cm³
• Power handling P 125W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 1.83mH
• VC Diameter 51mm
• Winding height HVC 20mm

Magnet

• Flux density B 1.23T
• Force factor Bl 10.7N/A
• Motor constant Bl/√RE 4.26N/√W
• Air gap height HAG 6mm
• Weight 1.3kg

Diaphragm

• Effective diameter 205mm
• Effective area SD 330cm²
• Moving mass MMS 53g
• Moving mass (without air load) MMD 48.6g

Suspensions

• Stiffness KMS 0.833N/mm
• Compliance CMS 1200µm/N
• Equivalent volume to the compliance VAS 171L
• Mechanical resistance RMS 3.3N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Volume occupied by the driver (estimated) 1.7L
• Net weight 4.05kg