S 3M High-efficiency 75mm midrange

Helix

Discontinued

Your price:
€ 129,00
Price per pair (VAT included)
Type
Midrange
Speaker Size
70 mm
MAX Power
150 Watt
RMS Power
75 Watt
Frequency Response
400 - 6.000 Hertz
Sensitivity
86 dB
Impedance
4 Ohm
Installation Depth
37 mm
Midrange Cone Material
Fibra di basalto e carta

Helix S 3M Midrange 75mm high efficiency

Pair of 75mm midrange speakers with elegant design, finished for maximum sound quality and represent the perfect addition for any fully active 3-way speaker system.

The highly rigid membrane is made of a new basalt fiber and paper compound. An ideal combination to ensure clear and precise sound even at high volumes. In addition to the maximum colorless reproduction of the midrange, the S 3M also offers extremely low distortion thanks to the linear neodymium magnet system.

We recommend creating a 3-way system with the Helix S 3M, the S 1T tweeter, and an S 6B or S 4B woofer.

S 3M Features

  • Midrange speaker with 3" / 75 mm cone with new basalt fiber compound cone: a perfect combination of minimum weight, high rigidity and perfect internal damping.
  • Compact and highly efficient neodymium magnet system for linear drive and minimal distortion.
  • Low resonance basket made of glass fiber reinforced plastic with optimized voice coil cooling for high power handling.
  • Grilles included.

Scheda tecnica

n-20221118112237-db-helix-s-3m-web.pdf

Helix S 3M Technical Specifications

  • RMS / max. Power 75/150 Watts (high-pass > 400 Hz at 24 dB/oct.)
  • Impedance Z 4 Ω
  • DC Resistance Re 3.2 Ω
  • Frequency Response 400 Hz - 6,000 Hz
  • Resonance Frequency Fs 130 Hz
  • Mechanical Q Factor Qms 4.47
  • Electrical Q Factor Qes 0.48
  • Total Q Factor Qts 0.43
  • Compliance Cms 396 µm/N
  • Equivalent Air Volume Vas 0.57 L
  • Force Factor B*I 4.6 Tm
  • Sensitivity 1 W/1 m SPL 86 dB
  • Cone Area Sd 32 cm²
  • Moving Mass Mms 3.8 g
  • Cone Material Basalt fiber and paper compound
  • Mechanical Resistance Rms 0.69 kg/s
  • Voice Coil Diameter ø 25 mm
  • Voice Coil Winding Height 8 mm
  • Max. Linear Excursion Xmax +/- 2 mm
  • External Diameter ø 90 mm / 3.54"
  • Installation Diameter ø 73 mm / 2.87"
  • Installation Depth 37 mm / 1.46"

Recommended Box Volumes

  • Sealed enclosure with minimum net volume of 200 ml
  • Net Volumes Recommended DSP/Amplifier Settings
  • 0.2 liters (system resonance: 230 Hz) Crossover Frequency: 500 Hz
  • min. filter slope: 12 dB/oct.
  • 0.4 liters (system resonance: 190 Hz) Crossover Frequency: 450 Hz
  • min. filter slope: 18 dB/oct.
  • 0.6 liters (system resonance: 170 Hz) Crossover Frequency: 400 Hz
  • min. filter slope: 24 dB/oct.

Note: the enclosure must always be filled with appropriate damping material.

Discontinued