Hertz SPL Show SV 200L

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.9dB
• Frequency response 45 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 3.32
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 99cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.0Ω
• Inductance (1kHz) LE 0.75mH
• VC Diameter 50mm

Magnet

• Force factor Bl 8.6N/A
• Motor constant Bl/√RE 4.97N/√W
• Diameter 120mm
• Height 20mm
• Material Ferrite

Diaphragm

• Effective diameter 168mm
• Effective area SD 221cm²
• Moving mass MMS 31.5g
• Moving mass (without air load) MMD 29.1g
• Material Ultra light, non pressed paper

Suspensions

• Stiffness KMS 2.38N/mm
• Compliance CMS 420µm/N
• Equivalent volume to the compliance VAS 29L
• Mechanical resistance RMS 2.62N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Overall diameter 209mm
• Baffle cutout diameter 178mm
• Overall depth 91mm
• Flange thickness 9mm
• Mounting depth 82mm
• Volume occupied by the driver (estimated) 0.83L
• Net weight 2.32kg