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Helix CB C165.2-S3 - 3Ohm
Helix Compose Basic 165mm / 6.5″ - 2-way coaxial speaker.
Helix Basic is the most affordable model in the Compose series and offers a great price/quality ratio!
Like other Compose models, Basic was developed in-car, which means it has been optimized specifically for in-car use.
One of the key elements of the Compose series is a patented mounting system called FlexMount, which is based on specially developed speaker adapters.<br>
This technology allows you to install Compose Basic speakers in an almost infinite number of car models by simply changing the adapter ring that fits your car.
Specifications:
Power handling RMS / Max. P 80 / 120 Watts
Frequency response 60 Hz to 22,000 Hz
Impedance Z 3 Ω
Sensitivity SPL 92 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter ø 166.0 mm / 6.54”
Installation diameter ø 143.0 mm / 5.63”
Installation depth 61.4 mm / 2.42”
Midrange
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Resonance frequency Fs 65 Hz
Mechanical Q factor Qms 4.78
Electrical Q factor Qes 0.93
Total Q factor Qts 0.78
Compliance Cms 480 μm/N
Equivalent air volume Vas 12.9 L
Force factor B*l 4.1 Tm
Cone area Sd 139 cm2
Moving mass MMS 12.5 g
Mechanical resistance Rms 1.09 kg/s
Voice coil diameter ø 25 mm
Voice coil winding height
8.9 mm
Max. linear excursion Xmax +/- 2.5 mm
Tweeter
Voice coil diameter ø 20 mm
Features
Tweeter Silk Dome and neodymium magnet
Midbass
Injected polypropylene cone
Crossover Integrated, 6 dB highpass