SEAS H1208-08 L22RN4X/P

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.6dB
• Frequency response 20 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 21Hz
• Mechanical quality factor QMS 3.13
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 10.5mm
• Air volume displaced at xmax VD 154cm³
• Power handling P 125W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 3.76mH
• VC Diameter 39mm
• Winding height HVC 20mm

Magnet

• Flux density B 0.9T
• Force factor Bl 10.7N/A
• Motor constant Bl/√RE 4.33N/√W
• Air gap height HAG 6mm
• Weight 0.64kg

Diaphragm

• Effective diameter 167mm
• Effective area SD 220cm²
• Moving mass MMS 40g
• Moving mass (without air load) MMD 37.5g

Suspensions

• Stiffness KMS 0.714N/mm
• Compliance CMS 1400µm/N
• Equivalent volume to the compliance VAS 93L
• Mechanical resistance RMS 1.76N·s/m

Dimensions

• Nominal diameter 8″
• 220mm
• Volume occupied by the driver (estimated) 0.91L
• Net weight 2.2kg