Helix C 1T - Tweeter


✓ Soft Dome Tweeter

✓ Magnet: Nedoymium

✓ FQ-Range: 820Hz - 25kHz

✓ SPL: 90dB

✓ Power: 100 Watt RMS

✓ Impedance: 4 Ohm

✓ Outer diameter: 25mm

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  Fast Shipping

Fast shipping for stock items, short delivery time.

  • 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 treble response

Sturdy protection grille for protecting the dome from damages

12 x drilled neodymium magnet for highest magnetic flux linearity

Integrated, dampened coupling volume for very low resonance frequency



Power RMS / max. P100 / 150 Watts
(highpass > 3,000 Hz at 12 dB/Oct.)
Impedance Z4 Ω
DC resistance Re3.4 Ω
Frequency response 820 Hz -
25,000 Hz
Resonance frequency Fs820 Hz
1 W / 1 m
SPL90 dB
Voice coil diameterø25 mm 
Cone area Sd4.9 cm²
Moving mass Mms0.35 g
Cone material Silk dome
Outer diameterø50 mm / 2.00"
Installation diameterø44 mm / 1.73"
Installation depth 20.5 mm / 0.81"
Recommended crossover frequencies for the highpass  
Slope Minimum crossover frequency
6 dB/Octave 3,500 Hz
12 dB/Octave  > 2,500 Hz
24 dB/Octave > 1,800 Hz

Scope of delivery

✓ 2 x Tweeter Helix C 1T 

✓ 2 x Fitting spring

✓ 2 x Allen screw

1 x Allen key

✓ Shipping Infos (Click)

Shipping countrys:

✓ Germany

✓ Austria

✓ France


Data sheet

Power Handling
100 Watt
RMS Power Speaker
51 - 100 Watt

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