C 6B

SKU: C921600

Helix

Midbass 6.5″ 150W

 

HELIX C 6B

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.

Features

  • High-end mid-woofer with sturdy aluminum diecast basket
  • Mid-woofer cone with scooped, long-fibered sisal with additional elastomer structural damping
  • Virtually compression-free conversion of the amplifier power into sound pressure
  • Lowest manufacturing tolerances and exclusive use of selected materials
  • Grille included
SKU: C921600 Category: Tags: , , , , ,
Brand

Speakers Type (Car)

,

Series

Technical Specifications:

Power handling RMS / max. 150 / 300 Watts
Impedance 3 Ω
DC resistance  3.4 Ω
Resonance frequency 54 Hz
Mechanical Q factor  11.1
Electrical Q factor  0.55
Total Q factor 0.53
Compliance 490 µm/N
Equivalent air volume 12.4 L
Force factor  6.1 Tm
Efficiency 1 W / 1 m 88 dB
Cone area  135 cm²
Moving mass  17.8 g
Cone material Sisal with elastomer structural damping
Mechanical resistance  0.54 kg/s
Voice coil diameter 37 mm
Voice coil winding height 12 mm
Max. linear excursion  +/- 3 mm
Outer diameter 166 mm / 6.54″
Installation diameter 145 mm / 5.71″
Installation depth 67 mm / 2.64″
Recommended enclosure volumes 
Sealed box 
Net volume 8 L
Lower limiting frequency (-3dB) 68 Hz
Vented box 
Net volume 15 L
Port diameter 60 mm / 2.36″
Port area 28 cm²
Port length 16 cm / 6.30″
Port tuning frequency 49 Hz
Lower limiting frequency (-3dB) 52 Hz

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