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HELIX Ci5 S200FM-D2

200 mm (8") midbass, dual 2 Ω voice coils, from the Compose i5 line.

Specifications

Power handling RMS / Max. (P)200 / 400 Watts
Impedance (Z)2 x 2 Ω
DC resistance (Re)3.6 Ω
Frequency response25 Hz - 500 Hz
Resonance frequency (Fs)55 Hz
Mechanical Q factor (Qms)8.31
Electrical Q factor (Qes)0.88
Total Q factor (Qts)0.80
Compliance (Cms)256 µm/N
Equivalent air volume (Vas)13.5 L
Force factor (B*I)6.7 Tm
Sensitivity (SPL)90 dB @ 2.83 V / 1m
87 dB @ 1W / 1m
Cone area (Sd)194 cm²
Moving mass (Mms)32 g
Cone materialInjected polypropylene
Mechanical resistance (Rms)1.39 kg/s
Voice coil diameter (ø)38 mm
Voice coil winding height20 mm
Max. linear excursion (Xmax)+/- 7.5 mm
Outer diameter (ø)195 mm / 7.68"
Installation diameter (ø)173.5 mm / 6.83"
Installation depth47.0 mm / 1.85"
FeaturesFlexMount200

Installed by Audio Edge

We sell every product as part of a system designed for your vehicle — consultation, installation, and tuning included. Tell us what you drive and we’ll tell you what this can do in your car.

Proof

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Let’s talk about your car

Tell us what you drive and what you want it to sound like. We’ll come back with a plan — gear, fabrication, timeline, and a real number.

Call (480) 219-0168 Request a Consultation