MONACOR SP-308CX

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.1dB
• Frequency response 80 - 22000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 80Hz
• Mechanical quality factor QMS 2.21
• Electrical quality factor QES 0.43
• Total quality factor QTS 0.36

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 55cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.8Ω
• Inductance (1kHz) LE 0.58mH
• VC Diameter 50mm
• Winding material Polyamide

Magnet

• Force factor Bl 12.1N/A
• Motor constant Bl/√RE 5.02N/√W
• Diameter 126mm
• Weight 1.4kg

Diaphragm

• Effective diameter 168mm
• Effective area SD 221cm²
• Moving mass MMS 17g
• Moving mass (without air load) MMD 14.6g

Suspensions

• Stiffness KMS 4.55N/mm
• Compliance CMS 220µm/N
• Equivalent volume to the compliance VAS 15.4L
• Mechanical resistance RMS 3.87N·s/m

Dimensions

• Nominal diameter 8″
• 208 x 208mm
• Overall size 208 x 208mm
• Baffle cutout diameter 184mm
• Overall depth 169mm
• Flange thickness 10mm
• Mounting depth 159mm
• Volume occupied by the driver (estimated) 2L
• Net weight 4.8kg