HELIX COMPOSE Ci3 W165FM-S2 6.5" Midbass Driver Pair 2 Ohm

Quick answer

The HELIX Ci3 W165FM-S2 is a 6.5 inch 2 ohm performance midbass driver from the COMPOSE i3 series, rated 100W RMS and sold as a pair.

The 2 ohm coil pulls more power from an amplifier than a 4 ohm driver, and the Cenosphere coated paper cone keeps the cone stiff yet light.

Problems it solves

• Weak door bass from factory woofers. 100W RMS and 3.7 mm Xmax move far more air.
• Universal woofers that need cutting to fit. FlexMount165 rings place it in the factory position.
• Splicing into door looms. HELIX WireKits plug into the ProConnect terminal.

Specifications

• Size: 165 mm, 6.5 inch
• Power: 100W RMS, 150W max
• Impedance: 2 ohm, Re 1.8 ohm
• Sensitivity: 94 dB at 2.83V, 88 dB at 1W
• Frequency response: 60 Hz to 3,500 Hz
• Fs, Qts, Vas: 74 Hz, 0.74, 8.8 L
• Xmax: 3.7 mm
• Voice coil: 25 mm
• Cutout and depth: 142 mm, 60.7 mm
• Terminal: ProConnect

Fitment and compatibility

A universal 6.5 inch midbass for door or kick panel positions with a 142 mm opening and 60.7 mm of depth. For a factory location, use the HELIX FlexMount165 ring and WireKit listed for your car.

What is in the box

Two Ci3 W165FM-S2 midbass drivers with mounting material. FlexMount165 rings and WireKits are sold separately.

Install notes

Pair it with an amplifier stable at 2 ohm, or a HELIX or MATCH DSP amplifier, and a crossover or DSP filter for the tweeter. ProConnect takes ordinary speaker cable as well as WireKit plugs.

Warranty

This comes with the manufacturer's warranty through the Australian distributor. See the manufacturer's terms for details, plus our guarantees under the Australian Consumer Law.

FAQ about the Ci3 W165FM-S2

Will the Ci3 W165FM-S2 fit my car doors?

It needs a 142 mm hole and 60.7 mm depth. A FlexMount165 ring places it in many factory spots. For a factory location, use the HELIX FlexMount165 ring and WireKit listed for your car.

Does the Ci3 W165FM-S2 work with a 4 ohm amplifier?

Use an amplifier rated for 2 ohm loads. HELIX matches it to its own amplifiers.

How do I connect the Ci3 W165FM-S2?

Through the ProConnect terminal, using speaker cable or a car specific HELIX WireKit. Two Ci3 W165FM-S2 midbass drivers with mounting material. A universal 6.5 inch midbass for door or kick panel positions with a 142 mm opening and 60.7 mm of depth.

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