Peerless HDS-P830869

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.8dB
• Frequency response 40 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 5.68
• Electrical quality factor QES 0.40
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 7.5mm
• Air volume displaced at xmax VD 170cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.754mH
• VC Diameter 32.4mm

Magnet

• Force factor Bl 9.34N/A
• Motor constant Bl/√RE 3.88N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 170mm
• Effective area SD 227cm²
• Moving mass MMS 28.6g
• Moving mass (without air load) MMD 26.2g
• Material Polypropylene

Suspensions

• Stiffness KMS 1.27N/mm
• Compliance CMS 790µm/N
• Equivalent volume to the compliance VAS 57.6L
• Mechanical resistance RMS 1.08N·s/m

Dimensions

• Nominal diameter 8″
• 203mm
• Volume occupied by the driver (estimated) 0.71L
• Net weight 1.74kg
• Frame material Cast Aluminium