Helix C 2M - 75mm Reference-Midrange


✓ Midrange

✓ Magnet: Neodymium

✓ Resonance-FQ: 460Hz

✓ SPL: 86dB

✓ Power: 75 Watt RMS

✓ Impedance: 4 Ohm

✓ Outer diameter: 75mm

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  • New
Stock status: Out of stock
Out of stock
delivery time 6 - 8 weeks
packing unit: pair



These reference speakers in our C-series raise the bar to a new level of fantastic sound quality. The legendary sisal woofer cones are equipped with an additional structural damping layer made of an elastomer, which again improves the acoustic properties of the driver. The tweeter enclosure also underwent a complete overhaul. Anyone who wants to operate these loudspeakers as fully active speakers (e.g. using our new digital signal processors) can put together the system of their choice by combining the individual components.


✓ Ultra lightweight silk dome for a distinguished and natural midrange response

Sturdy protection grille for protecting the dome from damages

10 x drilled neodymium magnet for highest magnetic flux linearity

Integrated, dampened coupling volume for very low resonance frequency



Power RMS / max. P40 / 80 Watts
(highpass > XX00 Hz at 12 dB/Oct.)
Impedance Z4 Ω
DC resistance Re3.4 Ω
Resonance frequency Fs460 Hz
1 W / 1 m
SPL93 dB
Voice coil diameterø50 mm
Cone area Sd20 cm²
Moving mass Mms1.6 g
Cone material Silk dome
Outer diameterø90 mm / 3.54"
Installation diameterø78 mm / 3.07"
Installation depth 31.15 mm / 1.23"
Recommended crossover frequencies for the highpass  
Slope Minimum crossover frequency
6 dB/Octave 1,250 Hz
12 dB/Octave  > 750 Hz
24 dB/Octave > 650 Hz

Scope of delivery

✓ 2 x High-End Midrange speaker Helix C 2M

✓ 2 x Fitting spring

✓ 2 x Allen screw

1 x Allen key

✓ Shipping Infos (Click)

Shipping countrys:

✓ Germany

✓ Austria

✓ France


Data sheet

Power Handling
40 Watt
RMS Power Speaker
1 - 50 Watt

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