Scan-Speak Discovery 15W/4424G00

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.8dB
• Frequency response 46 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46Hz
• Mechanical quality factor QMS 3.26
• Electrical quality factor QES 0.26
• Total quality factor QTS 0.24

Large signal parameters

• Maximum linear excursion xmax 2.8mm
• Maximum excursion before damage xlim 8mm
• Air volume displaced at xmax VD 22cm³
• Power handling P 60W
• Program power Pmax 120W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz, estimated) LE 0.27mH
• VC Diameter 25mm
• Winding height HVC 10.5mm

Magnet

• Force factor Bl 5.2N/A
• Motor constant Bl/√RE 2.95N/√W
• Air gap height HAG 5mm

Diaphragm

• Effective diameter 101mm
• Effective area SD 80cm²
• Moving mass MMS 7.9g
• Moving mass (without air load) MMD 7.3g
• Material Coated Fibre Glass

Suspensions

• Stiffness KMS 0.662N/mm
• Compliance CMS 1510µm/N
• Equivalent volume to the compliance VAS 13.8L
• Mechanical resistance RMS 0.7N·s/m
• Surround material SBR Rubber

Dimensions

• Nominal diameter 6″
• 150mm
• Volume occupied by the driver 0.2L
• Net weight 1.0kg
• Frame material Die cast Aluminium