The HELIX COMPOSE i7 series is a High-End quality 2-way coaxial with excellent sound quality.

HOW TO! these coaxials do not contain any splitters and are best suited for use with a DSP amplifier ( the series can also be used with the Helix Ci7 FX-UNI.2 splitters ).

The ohmic rating of the Compose series speakers is optimized for Helix / Match DSP processors.

The Compose i7 series uses the highest quality materials:

- High-end silk calotte tweeter with excellent sound quality.

- Extremely lightweight and coated paper cone midbass for accurate and detailed reproduction.

- The midbass body is made of polymer composite, which is further reinforced with glass beads to create a highly rigid material that is free of refinement.

- High-performance magnets.



- One of the key elements of the Compose series is a patented mounting system called FlexMount, based on specially developed speaker adapters.
This technology allows you to mount i7 speakers on an almost infinite number of car models by simply changing the mounting ring that fits your car.

FlexMount mounting rings are either included with the speaker or can be purchased separately ( be sure to check out our FlexMount range ).

Technical data
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
Compatibility
FlexMount165
WireKits

Scope of delivery
2 x Ci7 C165.2FM-S3
2 x Tweeter connection cable
2 x Midbass connection cable
1 x Mounting material
1 x Instruction manual