Peerless GBS-135F25AL02-04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.1dB
• Frequency response 100 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 64Hz
• Mechanical quality factor QMS 4.33
• Electrical quality factor QES 0.68
• Total quality factor QTS 0.59

Large signal parameters

• Maximum linear excursion xmax 5.4mm
• Air volume displaced at xmax VD 47cm³
• Power handling P 35W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.3Ω
• Inductance (1kHz) LE 0.436mH
• VC Diameter 25.5mm

Magnet

• Force factor Bl 4.93N/A
• Motor constant Bl/√RE 2.71N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 105mm
• Effective area SD 86.6cm²
• Moving mass MMS 12.3g
• Moving mass (without air load) MMD 11.7g
• Material Aluminum

Suspensions

• Stiffness KMS 2N/mm
• Compliance CMS 500µm/N
• Equivalent volume to the compliance VAS 5.3L
• Mechanical resistance RMS 1.14N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 5″
• 133mm
• Volume occupied by the driver (estimated) 0.32L
• Net weight 0.82kg