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HELIX S 3M

A cone midrange driver in an elegant design, trimmed for maximum sound quality – and thus the perfect addition to any fully active 3-way speaker system.

The highly rigid membrane consists of a novel basalt fiber-paper compound. An ideal combination to ensure clear and precise sound even at high volumes? In addition to maximum uncoloured mid-range reproduction, the S 3M also offers extremely low distortion thanks to the linear neodymium magnet system.

The dream team is the combination with the S 1T tweeter and a S 6B or S 4B woofer. Driven by a power amplifier from Audiotec Fischer, the S loudspeakers perform at their best and provide the perfect basis for absolute top sound systems!

Features

  • 3? / 75 mm cone midrange speaker with novel basaltfiberpaper compound cone – a perfect combination of lowest weight, high stiffness and perfect inner damping
  • Highly efficient, compact neodymium magnet system for linear drive and minimum distortion
  • Low-resonant basket made from glassfiber reinforced plastic with optimized voice coil cooling for high power handling
  • Grille included

Performance Specifications

HELIX S 3M

Power RMS / max.

75 / 150 Watts (highpass > 400 Hz at 24 dB/Oct.)

Impedance

4 Ω

DC resistance

3.2 Ω

Frequency response

400 Hz – 6,000 Hz

Resonance frequency

130 Hz

Mechanical Q factor

4.47

Electrical Q factor

0.48

Total Q factor

0.43

Compliance

396 µm/N

Equivalent air volume

0.57 L

Force factor

4.6 Tm

Sensitivity 1 W / 1 m

86 dB

Cone area

32 cm²

Moving mass

3.8 g

Cone material

Basalt-fiber-paper compound

Mechanical resistance

0.69 kg/s

Voice coil diameter

25 mm

Voice coil winding height

8 mm

Max. linear excursion

+/- 2 mm

Sealed box with minimum 200 ml net volume: Net volumes

Recommended DSP / amplifier settings

Sealed box with minimum 200 ml net volume: 0.2 liter (System resonance: 230 Hz)

Crossover frequency: 500 Hz Min. filter slope: 12 dB/Oct.

Sealed box with minimum 200 ml net volume: 0.4 liter (System resonance: 190 Hz)

Crossover frequency: 450 Hz Min. filter slope: 18 dB/Oct.

Sealed box with minimum 200 ml net volume: 0.6 liter (System resonance: 170 Hz)

Crossover frequency: 400 Hz Min. filter slope: 24 dB/Oct.

Physical Specifications: HELIX S 3M

Outer diameter: 90 mm / 3.54″

Installation diameter: 73 mm / 2.87″

Installation depth: 37 mm / 1.46″

Next working day delivery if ordered before 12:00, unless item is special order.

Helix S 3M 3″ Midrange Speaker

86 cm / 3″ cone midrange speaker Power handling: 75 / 150 Watts Frequency range: 400 Hz – 6,000 Hz

£119.99

Want it fitted?We can fit anything we sell at our Nottingham workshop.

HELIX S 3M

A cone midrange driver in an elegant design, trimmed for maximum sound quality – and thus the perfect addition to any fully active 3-way speaker system.

The highly rigid membrane consists of a novel basalt fiber-paper compound. An ideal combination to ensure clear and precise sound even at high volumes? In addition to maximum uncoloured mid-range reproduction, the S 3M also offers extremely low distortion thanks to the linear neodymium magnet system.

The dream team is the combination with the S 1T tweeter and a S 6B or S 4B woofer. Driven by a power amplifier from Audiotec Fischer, the S loudspeakers perform at their best and provide the perfect basis for absolute top sound systems!

Features

  • 3? / 75 mm cone midrange speaker with novel basaltfiberpaper compound cone – a perfect combination of lowest weight, high stiffness and perfect inner damping
  • Highly efficient, compact neodymium magnet system for linear drive and minimum distortion
  • Low-resonant basket made from glassfiber reinforced plastic with optimized voice coil cooling for high power handling
  • Grille included

Performance Specifications

HELIX S 3M

Power RMS / max.

75 / 150 Watts (highpass > 400 Hz at 24 dB/Oct.)

Impedance

4 Ω

DC resistance

3.2 Ω

Frequency response

400 Hz – 6,000 Hz

Resonance frequency

130 Hz

Mechanical Q factor

4.47

Electrical Q factor

0.48

Total Q factor

0.43

Compliance

396 µm/N

Equivalent air volume

0.57 L

Force factor

4.6 Tm

Sensitivity 1 W / 1 m

86 dB

Cone area

32 cm²

Moving mass

3.8 g

Cone material

Basalt-fiber-paper compound

Mechanical resistance

0.69 kg/s

Voice coil diameter

25 mm

Voice coil winding height

8 mm

Max. linear excursion

+/- 2 mm

Sealed box with minimum 200 ml net volume: Net volumes

Recommended DSP / amplifier settings

Sealed box with minimum 200 ml net volume: 0.2 liter (System resonance: 230 Hz)

Crossover frequency: 500 Hz Min. filter slope: 12 dB/Oct.

Sealed box with minimum 200 ml net volume: 0.4 liter (System resonance: 190 Hz)

Crossover frequency: 450 Hz Min. filter slope: 18 dB/Oct.

Sealed box with minimum 200 ml net volume: 0.6 liter (System resonance: 170 Hz)

Crossover frequency: 400 Hz Min. filter slope: 24 dB/Oct.

Physical Specifications

HELIX S 3M

Outer diameter

90 mm / 3.54″

Installation diameter

73 mm / 2.87″

Installation depth

37 mm / 1.46″

Next working day delivery if ordered before 12:00, unless item is special order.