MONACOR SP-155X

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.1dB
• Frequency response 70 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 70Hz
• Mechanical quality factor QMS 2.87
• Electrical quality factor QES 0.88
• Total quality factor QTS 0.67

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 12cm³
• Power handling P 25W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.5Ω
• Inductance (1kHz) LE 0.4mH
• VC Diameter 25.5mm
• Winding material Aluminium

Magnet

• Force factor Bl 4.6N/A
• Motor constant Bl/√RE 1.8N/√W
• Diameter 100mm
• Weight 0.38kg

Diaphragm

• Effective diameter 122mm
• Effective area SD 117cm²
• Moving mass MMS 6.5g
• Moving mass (without air load) MMD 5.6g

Suspensions

• Stiffness KMS 1.33N/mm
• Compliance CMS 750µm/N
• Equivalent volume to the compliance VAS 14L
• Mechanical resistance RMS 1N·s/m

Dimensions

• Nominal diameter 6″
• 155mm
• Overall diameter 155mm
• Baffle cutout diameter 146mm
• Overall depth 75mm
• Flange thickness 6mm
• Mounting depth 69mm
• Volume occupied by the driver (estimated) 0.38L
• Net weight 1.14kg