Helix Compose i7 Ci7 T20FM SC

Helix Compose i7 – Ci7 T20FM-SC

Helix Compose i7 High-End tweeter with hand coated silk cone.

Helix Compose represents Helix’s best know-how, precise manufacturing process and top-level sound quality.

Thanks to more than 30 years of experience, Helix Compose sets new standards in the car speaker market.

Installation options

Option A: Traditional flush installation

Option b: Corner mounting (with the included installation collar)

Option c: FlexMount 20 with car-specific adapters (sold separately)

Technical information:
Size without housing:
Tweeter outer Ø 32.00
Mounting Ø 27.2mm
Mounting depth: 19mm

Impedance: 4 Ohms
DC resistance: ( Re ) 3.4 Ohm
Frequency response: 1500 Hz – 30000 Hz
Sensitivity ( SPL ): 93 dB @ 2.83V / 1m, 90 dB @ 1W / 1m
Voice coil diameter: 20mm
Cone material: Silk Dome with coupling volume

Recommended crossover frequencies for the highpass:

Slope 6dB/octave│minimum crossover frequency 4000Hz

Slope 12 dB /octave│minimum crossover frequency 3000Hz