Helix Compose CB K165.2-S3 – 6.5″ Component Set
£179.99
Description
HELIX CB K165.2-S3
HELIX COMPOSE. The perfect speaker for any composition.
A 2-way component speaker system designed to deliver clear sound performance and efficient power output. Built for both reliability and flexibility, it supports easy installation while maintaining premium sound detail and dynamic range.
Smart design and efficiency
The HELIX CB K165.2-S3 uses efficient 3-Ohm technology, ensuring compatibility with most amplifiers while providing strong sound output and better performance. The system combines lightweight materials and precise engineering for consistent audio clarity and response.
Deep and controlled bass
The midbass driver uses a polypropylene cone for a balance of stiffness and low distortion. Its steel basket includes additional ventilation holes for effective cooling, while a powerful magnet ensures accurate response and improved control over lower frequencies.
Clean and accurate highs
The silk dome tweeter delivers smooth high-frequency performance with a neodymium magnet for stable magnetic flow and detail in treble response. Its compact housing allows flexible mounting positions to suit different vehicle setups.
Optimized crossover
The crossover includes a 4-level tweeter adjustment and built-in protection for safe operation. Its compact size supports installation in small spaces while maintaining clear separation between low and high frequencies.
FlexMount20 – adaptable installation
The optional FlexMount20 adaptor rings allow this speaker system to fit various vehicles while maintaining acoustic optimization in factory mounting positions.
Features
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2-way speaker kit combining high efficiency with clear sound
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3-Ohm impedance for improved amplifier performance
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Compact design suited for limited installation spaces
Tweeter
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0.75” / 20 mm silk dome tweeter for detailed treble
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Neodymium magnet for high magnetic stability
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Compact housing with multiple installation options
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Flush and angle mounting pods included
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Compatible with optional FlexMount20 adaptors
Midbass
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6.5” / 165 mm polypropylene cone for accurate sound reproduction
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Reinforced steel basket with ventilation for better heat management
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Strong magnet for precise impulse control
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Polyurethane dustcap for improved midrange response
Crossover
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Compact, high-quality crossover for easy integration
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4-stage tweeter level adjustment with protection circuit
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12 dB slope for the tweeter ensuring balanced frequency division
Technical data
| Power handling RMS / Max. | P | 80 / 120 Watts |
| Frequency response | 60 Hz – 22,000 Hz | |
| Impedance | Z | 3 Ω |
| Sensitivity | SPL | 92 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Outer diameter | ø | Tweeter: 32.0 mm / 1.26” Midbass: 166.0 mm / 6.54” |
| Installation diameter | ø | Tweeter: 32.0 mm / 1.26” Midbass: 143.0 mm / 5.63” |
| Installation depth | Tweeter: 9.8 mm / 0.39” Midbass: 61.4 mm / 2.42” |
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| Dimensions crossover | 103.3 x 50.4 x 25.0 mm / 4.07 x 1.98 x 0.98” |
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| Midbass | ||
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.0 Ω |
| Resonance frequency | Fs | 62 Hz |
| Mechanical Q factor | Qms | 4.50 |
| Electrical Q factor | Qes | 0.90 |
| Total Q factor | Qts | 0.75 |
| Compliance | Cms | 520 μm/N |
| Equivalent air volume | Vas | 14.5 L |
| Force factor | B*l | 4.1 Tm |
| Cone area | Sd | 141 cm2 |
| Moving mass | Mms | 13.2 g |
| Mechanical resistance | Rms | 1.10 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 8.9 mm | |
| Max. linear excursion | Xmax | +/- 2.5 mm |
| Tweeter | ||
| Impedance | Z | 4 Ω |
| Resonance frequency | Fs | 2000 Hz |
| Voice coil diameter | ø | 20 mm |
| Features | ||
| Tweeter | Ultra compact, silk dome, neodymium magnet and FlexMount20 | |
| Midbass | Injected polypropylene cone | |
| Crossover | Tweeter: 12 dB highpass, protection and level adjustment | |
Compatibility
- FlexMount20





