PHL audio 973

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88dB
• Frequency response 60 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 67Hz
• Mechanical quality factor QMS 3.75
• Electrical quality factor QES 0.44
• Total quality factor QTS 0.40

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Maximum excursion before damage xlim 12mm
• Air volume displaced at xmax VD 60cm³
• Power handling P 120W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.346mH
• VC Diameter 38mm
• Winding height HVC 16mm

Magnet

• Force factor Bl 7.6N/A
• Motor constant Bl/√RE 3.18N/√W
• Air gap height HAG 6mm
• Diameter 118mm
• Material Ferrite

Diaphragm

• Effective diameter 108mm
• Effective area SD 92cm²
• Moving mass MMS 10.7g
• Moving mass (without air load) MMD 10g

Suspensions

• Stiffness KMS 1.89N/mm
• Compliance CMS 530µm/N
• Equivalent volume to the compliance VAS 6.3L
• Mechanical resistance RMS 1.2N·s/m

Dimensions

• Nominal diameter 5″
• 130mm
• Overall diameter 136mm
• Baffle cutout diameter 125mm
• Overall depth 87mm
• Flange thickness 12mm
• Mounting depth 75mm
• Volume occupied by the driver 0.38L
• Net weight 2.08kg