Scan-Speak Discovery 5F/8422T01

• Sensitivity (1W, 1m, infinite baffle) SPL1W 79.7dB
• Frequency response 100 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 93Hz
• Mechanical quality factor QMS 5.17
• Electrical quality factor QES 0.69
• Total quality factor QTS 0.61

Large signal parameters

• Maximum linear excursion xmax 2mm
• Maximum excursion before damage xlim 5mm
• Air volume displaced at xmax VD 3cm³
• Power handling P 10W
• Program power Pmax 20W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz, estimated) LE 0.12mH
• VC Diameter 26mm
• Winding height HVC 6mm
• Former material Titanium

Magnet

• Force factor Bl 3.07N/A
• Motor constant Bl/√RE 1.25N/√W
• Air gap height HAG 2mm
• Material Neodymium

Diaphragm

• Effective diameter 44mm
• Effective area SD 15.2cm²
• Moving mass MMS 1.86g
• Moving mass (without air load) MMD 1.8g

Suspensions

• Stiffness KMS 0.633N/mm
• Compliance CMS 1580µm/N
• Equivalent volume to the compliance VAS 0.5L
• Mechanical resistance RMS 0.21N·s/m

Dimensions

• Nominal diameter 2″
• 50mm
• Volume occupied by the driver 0.02L
• Net weight 0.127kg