Peerless TC9FD15-16

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB
• Frequency response 100 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 130Hz
• Mechanical quality factor QMS 3.68
• Electrical quality factor QES 1.92
• Total quality factor QTS 1.30

Large signal parameters

• Maximum linear excursion xmax 3.7mm
• Air volume displaced at xmax VD 13cm³
• Power handling P 20W
• Program power Pmax 40W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 13.0Ω
• Inductance (1kHz) LE 0.151mH
• VC Diameter 19.4mm

Magnet

• Force factor Bl 3.65N/A
• Motor constant Bl/√RE 1.01N/√W
• Air gap height HAG 4mm
• Material Ferrite

Diaphragm

• Effective diameter 68mm
• Effective area SD 36.3cm²
• Moving mass MMS 2.48g
• Moving mass (without air load) MMD 2.3g
• Material Patented PentaCut

Suspensions

• Stiffness KMS 1.56N/mm
• Compliance CMS 640µm/N
• Equivalent volume to the compliance VAS 1.19L
• Mechanical resistance RMS 0.55N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 3.5″
• 89mm
• Volume occupied by the driver (estimated) 0.11L
• Net weight 0.3kg