Peerless NE85W-04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83dB
• Frequency response 80 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 110Hz
• Mechanical quality factor QMS 10.30
• Electrical quality factor QES 0.73
• Total quality factor QTS 0.68

Large signal parameters

• Maximum linear excursion xmax 3.1mm
• Air volume displaced at xmax VD 6.8cm³
• Power handling P 25W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.7Ω
• Inductance (1kHz) LE 0.071mH
• VC Diameter 25.7mm

Magnet

• Force factor Bl 2.73N/A
• Motor constant Bl/√RE 1.42N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 53mm
• Effective area SD 22.1cm²
• Moving mass MMS 2.12g
• Moving mass (without air load) MMD 2g
• Material Aluminum

Suspensions

• Stiffness KMS 1.02N/mm
• Compliance CMS 980µm/N
• Equivalent volume to the compliance VAS 0.674L
• Mechanical resistance RMS 0.14N·s/m

Dimensions

• Nominal diameter 2.5″
• 64mm
• Net weight 0.236kg
• Frame material Cast Aluminium