SEAS H1878-08 L19RNX1

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB
• Frequency response 20 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 32Hz
• Mechanical quality factor QMS 5.50
• Electrical quality factor QES 0.41
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 7mm
• Maximum excursion before damage xlim 11mm
• Air volume displaced at xmax VD 102cm³
• Power handling P 200W
• Program power Pmax 330W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.66mH
• VC Diameter 39mm
• Winding height HVC 20mm

Magnet

• Flux density B 1.3T
• Force factor Bl 8.8N/A
• Motor constant Bl/√RE 3.53N/√W
• Air gap height HAG 6mm
• Weight 0.9kg

Diaphragm

• Effective diameter 136mm
• Effective area SD 146cm²
• Moving mass MMS 25.4g
• Moving mass (without air load) MMD 24g

Suspensions

• Stiffness KMS 1.04N/mm
• Compliance CMS 960µm/N
• Equivalent volume to the compliance VAS 29L
• Mechanical resistance RMS 0.93N·s/m

Dimensions

• Nominal diameter 8″
• 190mm
• Volume occupied by the driver (estimated) 0.82L
• Net weight 2.0kg