Scan-Speak Illuminator 15WU/4741T00

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.8dB
• Frequency response 34 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 3.47
• Electrical quality factor QES 0.25
• Total quality factor QTS 0.23

Large signal parameters

• Maximum linear excursion xmax 9mm
• Maximum excursion before damage xlim 13mm
• Air volume displaced at xmax VD 83cm³
• Power handling P 80W
• Program power Pmax 150W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz, estimated) LE 0.39mH
• VC Diameter 42mm
• Winding height HVC 8mm

Magnet

• Force factor Bl 6N/A
• Motor constant Bl/√RE 3.35N/√W
• Air gap height HAG 20mm
• Material Neodymium

Diaphragm

• Effective diameter 108mm
• Effective area SD 92cm²
• Moving mass MMS 13g
• Moving mass (without air load) MMD 12.3g
• Material Paper sandwich

Suspensions

• Stiffness KMS 0.592N/mm
• Compliance CMS 1690µm/N
• Equivalent volume to the compliance VAS 20L
• Mechanical resistance RMS 0.8N·s/m

Dimensions

• Nominal diameter 6″
• 150mm
• Volume occupied by the driver 0.35L
• Net weight 1.7kg