Hertz SV 200.1

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.4dB
• Frequency response 100 - 9000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 120Hz
• Mechanical quality factor QMS 10.30
• Electrical quality factor QES 0.58
• Total quality factor QTS 0.55

Large signal parameters

• Maximum linear excursion xmax 1.5mm
• Air volume displaced at xmax VD 35cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 0.22mH
• VC Diameter 38mm

Magnet

• Force factor Bl 8.3N/A
• Motor constant Bl/√RE 4.6N/√W
• Material High density flux ferrite

Diaphragm

• Effective diameter 168mm
• Effective area SD 230cm²
• Moving mass MMS 16.5g
• Moving mass (without air load) MMD 14.1g
• Material Ultra light pressed paper

Suspensions

• Stiffness KMS 10N/mm
• Compliance CMS 100µm/N
• Equivalent volume to the compliance VAS 7.5L
• Mechanical resistance RMS 1.21N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Volume occupied by the driver (estimated) 0.82L