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.

Features

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

Specifications

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.

Note: The enclosure should always be filled with appropriate damping material.