MONACOR SPH-135KEP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 88.4dB
• Frequency response 45 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45Hz
• Mechanical quality factor QMS 5.54
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 3.3mm
• Air volume displaced at xmax VD 31cm³
• Power handling P 50W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.0Ω
• Inductance (1kHz) LE 0.75mH
• VC Diameter 35.5mm
• Winding material Kapton

Magnet

• Force factor Bl 7.5N/A
• Motor constant Bl/√RE 3.06N/√W
• Diameter 100mm
• Weight 0.55kg

Diaphragm

• Effective diameter 110mm
• Effective area SD 95cm²
• Moving mass MMS 10g
• Moving mass (without air load) MMD 9.3g

Suspensions

• Stiffness KMS 0.813N/mm
• Compliance CMS 1230µm/N
• Equivalent volume to the compliance VAS 15.5L
• Mechanical resistance RMS 0.51N·s/m

Dimensions

• Nominal diameter 5.25″
• 133 x 133mm
• Overall size 133 x 133mm
• Baffle cutout diameter 122mm
• Overall depth 75mm
• Flange thickness 4mm
• Mounting depth 71mm
• Volume occupied by the driver (estimated) 0.44L
• Net weight 1.62kg