Scan-Speak Ellipticor 18WE/8542T00

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.3dB
• Frequency response 50 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 50Hz
• Mechanical quality factor QMS 5.01
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 7.7mm
• Maximum excursion before damage xlim 12mm
• Air volume displaced at xmax VD 102cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz, estimated) LE 0.88mH
• VC Diameter 45mm
• Winding height HVC 20.4mm

Magnet

• Force factor Bl 9.7N/A
• Motor constant Bl/√RE 3.86N/√W
• Air gap height HAG 5mm

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 16g
• Moving mass (without air load) MMD 14.8g

Suspensions

• Stiffness KMS 1.56N/mm
• Compliance CMS 640µm/N
• Equivalent volume to the compliance VAS 16L
• Mechanical resistance RMS 1N·s/m

Dimensions

• Nominal diameter 8″
• 180mm
• Volume occupied by the driver 0.32L
• Net weight 1.7kg