Peerless M17WG09-08

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
• Frequency response 40 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 56.3Hz
• Mechanical quality factor QMS 3.84
• Electrical quality factor QES 0.90
• Total quality factor QTS 0.73

Large signal parameters

• Maximum linear excursion xmax 3.9mm
• Air volume displaced at xmax VD 56cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.6Ω
• Inductance (1kHz) LE 0.27mH
• VC Diameter 25.9mm
• Former material Aluminium

Magnet

• Force factor Bl 5.05N/A
• Motor constant Bl/√RE 2.14N/√W
• Air gap height HAG 4mm

Diaphragm

• Effective diameter 135mm
• Effective area SD 143cm²
• Moving mass MMS 11.7g
• Moving mass (without air load) MMD 10.5g

Suspensions

• Stiffness KMS 1.47N/mm
• Compliance CMS 682µm/N
• Equivalent volume to the compliance VAS 19.6L
• Mechanical resistance RMS 1.08N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Volume occupied by the driver (estimated) 0.26L
• Net weight 0.68kg