The HELIX Ci5 S200FM is an 8″ hybrid woofer ( midbass/subwoofer ) with an extremely shallow mounting depth of 47mm. The Ci5 S200FM is available in 2 x 2 and 1 x 2 Ohm versions.

Compatible with HELIX COMPOSE CFMK200 adapters.

This woofer can also be used with the CFMK200 BMW.1S adapter as a BMW bench sub bass.

NOTE! not directly compatible with BMW Top Hifi ( Harman/Kardon, Logic7, HiFi System Professional DSP etc. ) systems with equipment codes S688A/S677A/S752A. The reason is that these amplifiers cannot withstand a 2 ohm load like the S676A and S674A amplifiers in the HiFi package and the player alone can.

Power handling RMS / Max.    P
200 / 400 Watts
Impedance     Z    1 x 2 Ω
DC resistance     Re    3.6 Ω
Frequency response      25 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 material      Injected polypropylene
Mechanical resistance     Rms    1.39 kg/s
Voice coil diameter    ø   38 mm
Voice coil winding height      20 mm
Max. linear excursion     Xmax    +/- 7.5 mm
Outer diameter    ø   195 mm / 7.68″
Installation diameter    ø   173.5 mm / 6.83″
Installation depth      47.0 mm / 1.85″

Features      FlexMount200

Compatibility
FlexMount200

Scope of delivery
2 x Ci5 S200FM-S2
2 x Mounting material