Peerless HDS-P830875

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.2dB
• Frequency response 55 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 48Hz
• Mechanical quality factor QMS 3.39
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.39

Large signal parameters

• Maximum linear excursion xmax 7.3mm
• Air volume displaced at xmax VD 105cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.461mH
• VC Diameter 32.4mm

Magnet

• Force factor Bl 8.65N/A
• Motor constant Bl/√RE 3.39N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 17.1g
• Moving mass (without air load) MMD 15.9g
• Material Coated Paper

Suspensions

• Stiffness KMS 1.56N/mm
• Compliance CMS 640µm/N
• Equivalent volume to the compliance VAS 18.6L
• Mechanical resistance RMS 1.52N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 0.63L
• Net weight 1.55kg
• Frame material Cast Aluminium