Helix C-63C – Three ways speakers

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.

Like the loudspeaker systems, the frequency crossovers of the components systems have also been optimized even further. Made up of the finest components, they offer, in addition to the adjustment of the tweeter level, the option of connecting a second woofer for each channel without any change in the crossover frequencies. The so-called “double woofer mode” provides for additional pressure in the frequency range where the bass will really kick

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Power RMS / max. 190 / 380 Watts
Frequency response 47 Hz – 25,000 Hz
Impedance 4 Ω
Efficiency 1 W / 1 m 91 dB
Cone material TW: Silk dome
M: Silk dome
W: Sisal with elastomer structural damping
Crossover 12/12/12 dB with tweeter level adjustment and double woofer mode
Outer diameter TW: 50 mm / 2″
M: 90 mm / 3.54″
W: 166 mm / 6.54″
Installation diameter TW: 44 mm / 1.73″
M: 78 mm / 3.07″
W: 145 mm / 5.71″
Installation depth TW: 20.50 mm / 0.81″
M: 31.15 mm / 1.23″
W: 67 mm / 2.64″