Scan-Speak Revelator 12M/4631G00

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.4dB
• Frequency response 85 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 75Hz
• Mechanical quality factor QMS 5.57
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 3mm
• Maximum excursion before damage xlim 7mm
• Air volume displaced at xmax VD 15cm³
• Power handling P 40W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz, estimated) LE 0.25mH
• VC Diameter 38mm
• Winding height HVC 10mm

Magnet

• Force factor Bl 5.3N/A
• Motor constant Bl/√RE 2.96N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 79mm
• Effective area SD 49cm²
• Moving mass MMS 6.5g
• Moving mass (without air load) MMD 6.2g
• Material Sliced

Suspensions

• Stiffness KMS 1.45N/mm
• Compliance CMS 690µm/N
• Equivalent volume to the compliance VAS 2.3L
• Mechanical resistance RMS 0.55N·s/m

Dimensions

• Nominal diameter 4.5″
• 120mm
• Volume occupied by the driver 0.14L
• Net weight 0.6kg