S 4B 10 cm woofer with composite paper and basalt fiber cone

Helix

Discontinued

Your price:
€ 93,00
Price per pair (VAT included)
Type
Woofer and midwoofer
Speaker Size
100 mm
MAX Power
140 Watt
RMS Power
70 Watt
Frequency Response
75 - 6.000 Hertz
Sensitivity
89 dB
Impedance
4 Ohm
Installation Depth
46,5 mm
Woofer Material
Cellulosa e fibra di basalto

Helix S 4B Woofer 10 cm composite cone in paper and basalt fiber

Mid-woofer 4" / 100 mm with new composite cone in paper and basalt fiber - a perfect combination of reduced weight, high rigidity and internal damping. Special-shaped rubber surround for greater effective cone area and greater maximum excursion. Individual HELIX basket with additional ventilation holes for better voice coil cooling and high power treatment. Gold-plated terminals.

Scheda tecnica

n-20191107143127-db-helix-s-4b.pdf

Helix S 4B Technical Specifications

  • RMS Power 70 Watt
  • Maximum Power 140 Watt
  • Impedance 4 Ω
  • DC Resistance Re 3.4 Ω
  • Frequency Response 75 Hz - 6,000 Hz
  • Resonance Frequency Fs 120 Hz
  • Mechanical Q Factor Qms 4.24
  • Electrical Q Factor Qes 1.11
  • Total Q Factor Qts 0.88
  • Compliance Cms 232 μm / N
  • Equivalent Air Volume Vas 1.2 L
  • Force Factor B * I 4.1 Tm
  • Efficiency 1 W / 1 m SPL 89 dB
  • Cone Area Sd 61 cm²
  • Moving Mass Mms 5.9 g
  • Cone Material basalt paper fiber composite
  • Mechanical Resistance Rms 1.19 kg / s
  • Voice Coil Diameter ø 25 mm
  • Voice Coil Winding Height 12 mm
  • Max. Linear Excursion Xmax +/- 3 mm
  • Outer Diameter ø 102 mm / 4.01 "
  • Installation Diameter ø 92.3 mm / 3.63 "
  • Installation Depth 46.5 mm / 1.83 "
  • Recommended Closed Box Volume: net volume 3 L
  • Lower Limit Frequency (-3dB) 100 Hz
Discontinued