Helix P 5B - 130mm Mid-Woofer


✓ Mid-Woofer

✓ Magnet: Ferrite

✓ FQ-Range: 60 - 5500Hz

✓ SPL: 89dB

✓ Power: 80 Watt RMS

✓ Impedance: 4 Ohm

✓ Outer diameter: 130mm

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  • New
Stock status: Out of stock
Out of stock
delivery time 6 - 8 weeks
packing unit: pair



Like its larger brother P 6B the P 5B is really an exceptional mid-woofer and the perfect choice if you like to build up a reference sound system. Its unique glassfiber-paper compound cone combines minimum weight with maximum stiffness and perfect inner damping. A lightweight, temperature-stable 1-inch / 25mm voice coil in combination with the long-throw rubber surround directly transform amplifier power into sound pressure with lowest possible distortion.


✓ Novel glassfiber-paper compound cone for maximum stiffness combined with lowest moving mass and perfect inner damping

Special shaped rubber surround for long linear cone excursion

Gold-plated terminals

Individual HELIX design basket

Solid rubber magnet protection ring with HELIX logo

Grille included



Power RMS / max. P80 / 160 Watts
Impedance Z4 Ω
DC resistance Re3.5 Ω
Frequency response 60 Hz - 5,500 Hz
Resonance frequency Fs71 Hz
Mechanical Q factor Qms5.82
Electrical Q factor Qes0.47
Total Q factorQts0.44
ComplianceCms522 μm/N
Equivalent air volumeVas4.5 L
Force factor B*I5.6 Tm
Sensitivity 1 W / 1 mSPL89 dB
Cone area Sd79 cm²
Moving mass Mms9.6 g
Cone material Glassfiber-paper compound
Mechanical resistance Rms0.73 kg/s
Voice coil diameterø25 mm
Voice coil winding height 12 mm 
Max. linear excursion Xmax+/- 3 mm
Outer diameterø128.5 mm / 5.10"
Installation diameterø111 mm / 4.37"
Installation depth 62.5 mm / 2.46"
Recommended enclosure volumes  
Sealed box  
Net volume 5 L
Lower limiting frequency (-3dB) 90 Hz
Vented box  
Net volume 9 L
Port diameterø50 mm / 2"
Port area 20 cm²
Port length 12 cm / 4.72"
Port tuning frequencyFb61 Hz
Lower limiting frequency (-3dB) 55 Hz

Scope of delivery

✓ 2 x Mid-woofer Helix P 5B

✓ 2 x Grille

✓ 2 x Mounting ring

1 x Mounting material

✓ Shipping Infos (Click)

Shipping countrys:

✓ Germany

✓ Austria

✓ France


Data sheet

Power Handling
80 Watt
RMS Power Speaker
51 - 100 Watt


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