SEAS XM004-04 L26RO4Y

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB
• Frequency response 20 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 26Hz
• Mechanical quality factor QMS 3.94
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 15mm
• Maximum excursion before damage xlim 28mm
• Air volume displaced at xmax VD 513cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz) LE 2.33mH
• VC Diameter 56mm
• Winding height HVC 40mm

Magnet

• Flux density B 0.9T
• Force factor Bl 17.7N/A
• Motor constant Bl/√RE 9.46N/√W
• Air gap height HAG 10mm
• Weight 2.34kg

Diaphragm

• Effective diameter 209mm
• Effective area SD 342cm²
• Moving mass MMS 160g
• Moving mass (without air load) MMD 155g

Suspensions

• Stiffness KMS 4.17N/mm
• Compliance CMS 240µm/N
• Equivalent volume to the compliance VAS 40L
• Mechanical resistance RMS 6.53N·s/m

Dimensions

• Nominal diameter 10″
• 260mm
• Volume occupied by the driver (estimated) 4.5L
• Net weight 10.0kg