Monacor SPH 255 Polypropylen

-12 %

RRP 111,70 €

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-12 %
HiFi bass speaker, 120 W MAX, 8 Ohm

With polypropylene cone and very strong, ventilated magnetic systems. A sophisticated technology for versatile applications.
  • Voice coil of high power capability
  • Long-term stable rubber surround
  • Powerful bass reproduction of high efficiency

Short data

Usage as Woofer
Power Handling 60 Watt
Impedance 8 Ohm
Frequency from 23 Hz
Max. Frequency 3 kHz
Sound pressure 91 dB


Overall dimensions 257 mm
Baffle cutout 235 mm
Depth (Total) 108 mm
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Polypropylen
Voice coil Ø 50 mm
Voice coil height 17 mm
Voice coil material Aluminium
Air gap height 8 mm
Magnet Ø 140 mm
Magnet-weight 1100 g


Resonance fs fs: 23 Hz
Mechanical Q Qms: 2.86
Electrical Q Qes: 0.26
Total Q Qts: 0.24
Equivalent Air-Volumen Vas: 205 Liter
DC-Resistance Re: 6.1 Ohm
Coil Inductance Le: 1.5 mH
Mech. Compliance Cms: 1.19 mm/N
Moving Mass Mms: 42 g
mech. Resistance Rms: 2.1 kg/s-¹
Max. Excursion +/- Xmax: 4.5 mm
BL Product Bl: 11.7 N/A
Membrane Area Sd: 350 cm²
Sound pressure dB: 91 SPL

Frequency & Impedance

Technical Dimensions

PDF-Product information

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