PHL audio 3570NdS

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95dB
• Frequency response 40 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 53Hz
• Mechanical quality factor QMS 3.62
• Electrical quality factor QES 0.20
• Total quality factor QTS 0.19

Large signal parameters

• Maximum linear excursion xmax 6.5mm
• Maximum excursion before damage xlim 14mm
• Air volume displaced at xmax VD 231cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1.62mH
• VC Diameter 64mm
• Winding height HVC 18mm

Magnet

• Force factor Bl 20.8N/A
• Motor constant Bl/√RE 8.95N/√W
• Air gap height HAG 10mm
• Diameter 118mm
• Material Neodymium

Diaphragm

• Effective diameter 213mm
• Effective area SD 356cm²
• Moving mass MMS 49g
• Moving mass (without air load) MMD 44.2g

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 33.3L
• Mechanical resistance RMS 4.51N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 255mm
• Baffle cutout diameter 229mm
• Overall depth 133mm
• Flange thickness 11mm
• Mounting depth 122mm
• Volume occupied by the driver 1.1L
• Net weight 4.1kg