Helix Ci3 K165.2FM S2 2Ohm

Helix Ci3 K165.2FM-S2 – 2Ohm

The HELIX COMPOSE i3 series is a top-quality stand-alone series with an excellent price/quality ratio.

The ohm number of Compose series speakers is optimized with Helix / Match DSP processors in mind.

Compose i3 series use high-quality materials:

– Titanium helmet treble with excellent sound quality.

– The very light and coated paper cone of the midbass guarantees accurate and detailed reproduction.

– The body of the midbass is made of polymer composite, which is additionally reinforced with glass beads, and thus a very stiff and reverberant-free material has been obtained.

– Powerful magnets.

– Separate high-quality divider filter with 6-stage treble level control.

One of the key elements of the Compose series is the patented mounting system called FlexMount, which is based on specially developed speaker adapters.
With this technology, you can install i3 speakers in an almost infinite number of car models by changing the adapter ring that fits your car.

FlexMount adapter rings are either included with the speaker or can be purchased separately (don’t forget to look at our FlexMount selection).

The i3 series is compatible with all FlexMount, FlexConnect, ProConnect and WireKits adapters.

Technical information:
Power handling RMS / Max. P 100 / 150 Watts
Frequency response 60 Hz to 25,000 Hz
Impedance Z 2 Ω
Sensitivity SPL 94 dB @ 2.83V / 1m
88dB @ 1W / 1m
Outer diameter ø
Tweeter: 32.0 mm / 1.26”
Midbass: 165.0 mm / 6.50”

Installation diameter ø
Tweeter: 32.0 mm / 1.26”
Midbass: 142.0 mm / 5.59”

Installation depth
Tweeter: 9.8 mm / 0.39”
Midbass: 60.7 mm / 2.39”

Dimensions crossover
103.3 x 50.4 x 25.0 mm /
4.07 x 1.98 x 0.98”

Midbass
Impedance Z 2 Ω
DC resistance Re 1.8 Ω
Resonance frequency Fs 74 Hz
Mechanical Q factor Qms 3.92
Electrical Q factor Qes 0.92
Total Q factor Qts 0.74
Compliance Cms 370 μm/N
Equivalent air volume Left 8.8 L
Force factor B*l 3.4 Tm
Cone area Sd 133 cm2
Moving mass Mms 12.5 g
Mechanical resistance Rms 1.48 kg/s
Voice coil diameter ø 25 mm
Voice coil winding height

11.3 mm
Max. linear excursion Xmax +/- 3.7 mm

Tweeter
Impedance Z 4 Ω
Resonance frequency Fs 1800 Hz
Voice coil diameter ø 20 mm

Features
Tweeter
Ultra compact, Titanium dome, neodymium magnet and FlexMount20

Midbass
Paper with Cenosphere coating, ProConnect terminal and FlexMount165