Scan-Speak 16W/4538G05

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.3dB
• Frequency response 36 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 3.82
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.35

Large signal parameters

• Maximum linear excursion xmax 6.6mm
• Maximum excursion before damage xlim 13.5mm
• Air volume displaced at xmax VD 81cm³
• Power handling P 70W
• Program power Pmax 125W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz, estimated) LE 0.45mH
• VC Diameter 38mm
• Winding height HVC 17.2mm

Magnet

• Force factor Bl 5.5N/A
• Motor constant Bl/√RE 3.12N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 125mm
• Effective area SD 123cm²
• Moving mass MMS 16.9g
• Moving mass (without air load) MMD 15.9g

Suspensions

• Stiffness KMS 0.893N/mm
• Compliance CMS 1120µm/N
• Equivalent volume to the compliance VAS 24L
• Mechanical resistance RMS 1N·s/m
• Surround material SBR Rubber

Dimensions

• Nominal diameter 6.5″
• 160mm
• Volume occupied by the driver 0.2L
• Net weight 1.0kg
• Frame material Die cast Aluminium