The details make the difference - don't get mislead by the discreet visual appearance of the P 6B. This driver is definitely a perfect basis for a top-class sound system. Its unique glass fiber paper compound cone combines minimum weight with maximum stiffness and perfect inner damping. To further reduce the moving mass a 1-inch / 25 mm voice coil has been chosen which nevertheless can easily handle up to 100 Watts RMS due to its extremely high-temperature resistance. It's not only the powerful kick bass and the uncoloured midrange response but also the exceptional low distortion which makes the P 6B a "winner".

Novel glass fiber paper compound cone for maximum stiffness combined with lowest moving mass and perfect inner damping

Specially 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. P 100 / 200 Watts

Impedance Z 4 Ω

DC resistance Re 3.5 Ω

Frequency response 40 Hz - 4,000 Hz

Resonance frequency Fs 56 Hz

Mechanical Q factor Qms 5.48

Electrical Q factor Qes 0.54

Total Q factor Qts 0.49

Compliance Cms 571 μm/N

Equivalent air volume Vas 13.2 L

Force factor B*I 5.7 Tm

Efficiency 1 W / 1 m SPL 90 dB

Cone area Sd 129 cm²

Moving mass Mms 14.3 g

Cone material Glassfiber-paper compound

Mechanical resistance Rms 0.91 kg/s

Voice coil diameter ø 25 mm

Voice coil winding height 12 mm 

Max. linear excursion Xmax +/- 3 mm

Outer diameter ø 165.5 mm / 6.50"

Installation diameter ø 142 mm /  5.60"

Installation depth 67 mm / 2.64"

   

Recommended enclosure volumes  

Sealed box  

Net volume 8 L

Lower limiting frequency (-3dB) 75 Hz

   

Vented box  

Net volume 14 L

Port diameter ø 50 mm / 2.00"

Port area 20 cm²

Port length 12.5 cm / 4.92"

Port tuning frequency Fb 48 Hz

Lower limiting frequency (-3dB) 51 Hz

Delivery Contents

2 x Mid-woofer HELIX P 6B

2 x Mounting ring

2 x Grille

1 x Mounting material

We take great care packaging every item to ensure safe shipment to you. Our postage and courier charges not only cover the shipping cost, but also the time to pack your order, plus packaging supplies etc.  Please note - some items may incur extra shipping charges that have to be sent by courier and are too large/expensive to be sent by Royal Mail (for example headlamps, head units, speakers, lowering springs etc) to the following postcode areas, Channel Islands, BT, most IV, HS, KA-27-28, Any KW, AB30-56, FK17-99, G83, KW1-14, PA21-40, PH18-26, PH30-41, PH49-50, all ZE, IM, and any other non-mainland postcodes.