SUPRAVOX 215-2000

• Sensitivity (1W, 1m, infinite baffle) SPL1W 104.2dB
• Frequency response 50 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 47Hz
• Mechanical quality factor QMS 8.00
• Electrical quality factor QES 0.24
• Total quality factor QTS 0.23

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 142cm³
• Power handling P 20W
• Program power Pmax 40W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.0Ω
• Inductance (1kHz, estimated) LE 0.32mH

Magnet

• Flux density B 2.1T
• Force factor Bl 6.5N/A
• Motor constant Bl/√RE 3.25N/√W
• Weight 3.5kg
• Material Alnico

Diaphragm

• Effective diameter 190mm
• Effective area SD 283cm²
• Moving mass MMS 7g
• Moving mass (without air load) MMD 3.7g

Suspensions

• Stiffness KMS 1N/mm
• Compliance CMS 1000µm/N
• Equivalent volume to the compliance VAS 121L
• Mechanical resistance RMS 0.26N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 8″
• 215mm
• Overall diameter 224mm
• Baffle cutout diameter 212mm
• Overall depth 147mm
• Flange thickness 10mm
• Mounting depth 137mm
• Volume occupied by the driver (estimated) 1.6L
• Frame material Aluminium