P 5B

Even the most discerning of sound freaks will undoubtedly has their own ideas about the ideal... more

Even the most discerning of sound freaks will undoubtedly has their own ideas about the ideal combination of loudspeakers. That´s why Audiotec Fischer also offers all of the loudspeakers in the P-series for purchase as an individual item, this is the ideal solution for any builder who wants to build a fully active system. In combination with the widely varied configuration options of all the HELIX amplifiers, the possibilities are virtually endless...

Novel glassfiber-paper compound cone for maximum stiffness combined with lowest moving... more
  • 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.  P 80 / 160 Watts Impedance  Z 4... more
Power RMS / max.  P 80 / 160 Watts
Impedance  Z 4 Ω
DC resistance  Re 3.5 Ω
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
Efficiency 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
2 x Mid-woofer HELIX P 5B 2 x Mounting ring 2 x Grille 1 x Mounting material more

2 x Mid-woofer HELIX P 5B
2 x Mounting ring
2 x Grille
1 x Mounting material