HELIX S 3M

Power RMS / max. 75 / 150 Watts

(highpass 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-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

Outer diameter ø 90 mm / 3.54″

Installation diameter ø 73 mm / 2.87″

Installation depth 37 mm / 1.46″

Recommended enclosure volumes

Sealed box with minimum 200 ml net volume

Net volumes Recommended DSP / amplifier settings

0.2 liter (System resonance: 230 Hz) Crossover frequency: 500 Hz

Min. filter slope: 12 dB/Oct.

0.4 liter (System resonance: 190 Hz) Crossover frequency: 450 Hz

Min. filter slope: 18 dB/Oct.

0.6 liter (System resonance: 170 Hz) Crossover frequency: 400 Hz

Min. filter slope: 24 dB/Oct.

Note: The enclosure should always be filled with appropriate damping material.

Scope of delivery

2 x Midrange speaker HELIX S 3M

2 x Grille

1 x Data sheet

1 x Mounting pattern