HELIX P 5B
- Order number: P821500
- WEEE-Reg.-Nr. DE 29323089
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HELIX P 5B
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 premium car 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.
Features
- 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
Technical data
| Power RMS / max. | P | 80 / 160 Watts |
| Impedance | Z | 4 Ω |
| DC resistance | Re | 3.5 Ω |
| Frequency response | 60 Hz - 5,500 Hz | |
| Resonance frequency | Fs | 71 Hz |
| Mechanical Q factor | Qms | 5.82 |
| Electrical Q factor | Qes | 0.47 |
| Total Q factor | Qts | 0.44 |
| Compliance | Cms | 522 μm/N |
| Equivalent air volume | Vas | 4.5 L |
| Force factor | B*I | 5.6 Tm |
| Sensitivity 1 W / 1 m | SPL | 89 dB |
| Cone area | Sd | 79 cm² |
| Moving mass | Mms | 9.6 g |
| Cone material | Glassfiber-paper compound | |
| Mechanical resistance | Rms | 0.73 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 12 mm | |
| Max. linear excursion | Xmax | +/- 3 mm |
| Outer diameter | ø | 128.5 mm / 5.10" |
| Installation diameter | ø | 111 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 diameter | ø | 50 mm / 2" |
| Port area | 20 cm² | |
| Port length | 12 cm / 4.72" | |
| Port tuning frequency | Fb | 61 Hz |
| Lower limiting frequency (-3dB) | 55 Hz | |
Scope of delivery
2 x Mid-woofer HELIX P 5B
2 x Mounting ring
2 x Grille
1 x Mounting material
