Peerless SDS-P830855

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.3dB
• Frequency response 60 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 66Hz
• Mechanical quality factor QMS 4.56
• Electrical quality factor QES 0.54
• Total quality factor QTS 0.48

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 25cm³
• Power handling P 30W
• Program power Pmax 60W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.343mH
• VC Diameter 25.8mm

Magnet

• Force factor Bl 5.24N/A
• Motor constant Bl/√RE 2.21N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 80mm
• Effective area SD 50.3cm²
• Moving mass MMS 6.3g
• Moving mass (without air load) MMD 6g
• Material Paper

Suspensions

• Stiffness KMS 1.1N/mm
• Compliance CMS 910µm/N
• Equivalent volume to the compliance VAS 3.26L
• Mechanical resistance RMS 0.57N·s/m
• Surround material NBR Rubber

Dimensions

• Nominal diameter 4″
• 102mm
• Volume occupied by the driver (estimated) 0.29L
• Net weight 0.74kg
• Frame material Pressed Steel