MONACOR SPA-8PA

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.9dB
• Frequency response 75 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 75Hz
• Mechanical quality factor QMS 3.11
• Electrical quality factor QES 0.54
• Total quality factor QTS 0.46

Large signal parameters

• Maximum linear excursion xmax 4mm
• Air volume displaced at xmax VD 85cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.8mH
• VC Diameter 50mm
• Winding material Aluminium

Magnet

• Force factor Bl 12.3N/A
• Motor constant Bl/√RE 4.92N/√W
• Diameter 130mm
• Weight 1.1kg

Diaphragm

• Effective diameter 165mm
• Effective area SD 213cm²
• Moving mass MMS 27g
• Moving mass (without air load) MMD 24.7g

Suspensions

• Stiffness KMS 6.25N/mm
• Compliance CMS 160µm/N
• Equivalent volume to the compliance VAS 10L
• Mechanical resistance RMS 4.09N·s/m

Dimensions

• Nominal diameter 8″
• 210mm
• Overall diameter 210mm
• Baffle cutout diameter 184mm
• Overall depth 105mm
• Flange thickness 10mm
• Mounting depth 95mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 3.2kg