Peerless ANC-50N25AL04-04

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.7dB
• Frequency response 200 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 150Hz
• Mechanical quality factor QMS 4.85
• Electrical quality factor QES 0.55
• Total quality factor QTS 0.49

Large signal parameters

• Maximum linear excursion xmax 2.4mm
• Air volume displaced at xmax VD 3.4cm³
• Power handling P 5W
• Program power Pmax 10W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz) LE 0.078mH
• VC Diameter 25.5mm

Magnet

• Force factor Bl 2.74N/A
• Motor constant Bl/√RE 1.46N/√W
• Air gap height HAG 2mm
• Material Neodymium

Diaphragm

• Effective diameter 42mm
• Effective area SD 13.9cm²
• Moving mass MMS 1.22g
• Moving mass (without air load) MMD 1.2g
• Material Aluminum

Suspensions

• Stiffness KMS 1.14N/mm
• Compliance CMS 880µm/N
• Equivalent volume to the compliance VAS 0.239L
• Mechanical resistance RMS 0.24N·s/m

Dimensions

• Nominal diameter 2″
• 51mm
• Net weight 0.069kg