Helix P 3M - 3" Cone Midrange Speaker


Price:
$184

Description

The P 3M cone midrange speaker is the perfect complement for every fully active driven 2-way speaker system. Its lightweight glassfiber-paper compound cone guarantees excellent impulse response and minimum sound discoloration, whereas the highly efficient neodymium magnet system provides for a linear drive and minimum distortion. Additionally, the flow-optimized basket not only prevents rear reflections, but also ensures compression-free sound reproduction thanks to optimum voice coil cooling. The P 3M develops its full tonal potential in a sealed, dampened enclosure.

  • 3” / 75 mm cone midrange speaker with novel glassfiber-paper compound cone for maximum stiffness combined with lowest moving mass and perfect inner damping
  • Highly efficient, compact neodymium magnet system for linear drive and minimum distortion
  • Low-resonant basket made from glassfiber reinforced plastic with optimized voice coil cooling for high power handling
  • Grille included
Power RMS / max.  P 75 / 150 Watts
(highpass > 400 Hz at 24 dB/Oct.)
Impedance  Z 4 Ω
DC resistance  Re 3.3 Ω
Frequency response   400 Hz - 5,000 Hz
Resonance frequency  Fs 130 Hz
Mechanical Q factor  Qms 4.72
Electrical Q factor  Qes 0.50
Total Q factor Qts 0.45
Compliance Cms 415 µm/N
Equivalent air volume Vas 0.54 L
Force factor  B*I 4.4 Tm
Efficiency 1 W / 1 m SPL 86 dB
Cone area  Sd 30 cm²
Moving mass  Mms 3.7 g
Cone material   Glassfiber-paper compound cone
Mechanical resistance  Rms 0.63 kg/s
Voice coil diameter ø 25 mm
Voice coil winding height   8 mm
Max. linear excursion  Xmax +/- 2 mm
Outer diameter ø 90 mm / 3.54"
Installation diameter ø 73 mm / 2.87"
Installation depth   37 mm / 1.46"
   
Recommended enclosure volumes  
Sealed box with minimum 200 ml net volume  
Net volumes  Recommended DSP / amplifier settings
0.2 liter (System resonance: 230 Hz)  Crossover frequency: 500 Hz
Min. filter slope: 12 dB/Oct.
0.4 liter (System resonance: 190 Hz)  Crossover frequency: 450 Hz
Min. filter slope: 18 dB/Oct.
0.6 liter (System resonance: 170 Hz)  Crossover frequency: 400 Hz
Min. filter slope: 24 dB/Oct.

 

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