Peerless HDS-P830883

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85dB
• Frequency response 80 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 68Hz
• Mechanical quality factor QMS 2.18
• Electrical quality factor QES 0.97
• Total quality factor QTS 0.67

Large signal parameters

• Maximum linear excursion xmax 7.6mm
• Air volume displaced at xmax VD 109cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.9Ω
• Inductance (1kHz) LE 0.215mH
• VC Diameter 32.4mm

Magnet

• Force factor Bl 7.8N/A
• Motor constant Bl/√RE 3.21N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 23.7g
• Moving mass (without air load) MMD 22.5g
• Material Coated Paper

Suspensions

• Stiffness KMS 4.17N/mm
• Compliance CMS 240µm/N
• Equivalent volume to the compliance VAS 6.81L
• Mechanical resistance RMS 4.64N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 0.67L
• Net weight 1.65kg
• Frame material Cast Aluminium