Peerless HDS-P830990

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.1dB
• Frequency response 60 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 56Hz
• Mechanical quality factor QMS 2.45
• Electrical quality factor QES 0.52
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 7.3mm
• Air volume displaced at xmax VD 105cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.3Ω
• Inductance (1kHz) LE 0.467mH
• VC Diameter 32.4mm

Magnet

• Force factor Bl 8.62N/A
• Motor constant Bl/√RE 3.43N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 17.5g
• Moving mass (without air load) MMD 16.3g
• Material Glass Fibre

Suspensions

• Stiffness KMS 2.13N/mm
• Compliance CMS 470µm/N
• Equivalent volume to the compliance VAS 13.5L
• Mechanical resistance RMS 2.51N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 0.64L
• Net weight 1.58kg
• Frame material Cast Aluminium