HELIX Ci7 C165.2FM-S3
165 mm (6½") 2-way coaxial, 3 Ω, from the Compose i7 line; optional Ci7 FX-UNI.2 crossover.
Specifications
| Power handling RMS / Max. (P) | 150 / 225 Watts |
|---|---|
| Frequency response | 50 Hz - 30,000 Hz |
| Impedance (Z) | 3 Ω |
| Sensitivity (SPL) | 92 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Outer diameter (ø) | 165.0 mm / 6.50” |
| Installation diameter (ø) | 142.0 mm / 5.59” |
| Installation depth | 65.8 mm / 2.59” |
Midbass
| Impedance (Z) | 3 Ω |
|---|---|
| DC resistance (Re) | 3.0 Ω |
| Resonance frequency (Fs) | 59 Hz |
| Mechanical Q factor (Qms) | 3.99 |
| Electrical Q factor (Qes) | 0.64 |
| Total Q factor (Qts) | 0.55 |
| Compliance (Cms) | 572 μm/N |
| Equivalent air volume (Vas) | 13.3 L |
| Force factor (B*l) | 4.7 Tm |
| Cone area (Sd) | 131 cm² |
| Moving mass (Mms) | 13.0 g |
| Mechanical resistance (Rms) | 1.21 kg/s |
| Voice coil diameter (ø) | 37 mm |
| Voice coil winding height | 13.4 mm |
| Max. linear excursion (Xmax) | +/- 3.7 mm |
Tweeter
| Impedance (Z) | 4 Ω |
|---|---|
| Voice coil diameter (ø) | 20 mm |
Features
| Tweeter | Silk dome with coupling volume |
|---|---|
| Midbass | Ultra high damping (UHD) crafted paper cone, ProConnect terminal and FlexMount165 |
| Crossover | 2-way active: two amplified DSP channels per speaker required 2-way passive: i7 FX-UNI.2 optionally available |
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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