Helix Compose CB C87.2-S3 – 87mm Coaxial Speakers
£89.99
Description
Helix Compose CB C87.2-S3 – 87mm Coaxial Speakers
CB C87.2-S3 – Compose Speaker System
This speaker system is designed to meet the challenges of modern automobile technology while providing intelligent engineering solutions. It combines the benefits of both universal and vehicle-specific speaker systems, offering high efficiency, dynamic performance, and excellent sound quality suitable for any vehicle.
Exceptional Sound Experience
The BASIC component systems deliver all the essentials for an impressive in-car audio experience. Each component works in harmony with amplifiers to ensure maximum performance and power output.
High Efficiency
The system features 3 Ohm technology for improved power output and higher sound pressure levels. Certain models are also available in 2 Ohm variants for even greater performance when paired with compatible amplifiers.
Powerful Bass
The midbass driver combines efficiency with clarity. Its lightweight yet stable polypropylene diaphragm enhances sound performance, while a sturdy steel basket with ventilation holes improves cooling. The strong magnet system ensures a responsive bass output, and the soft dustcap supports smooth midrange frequencies. The compact design allows easy installation even in tight spaces.
Clear High Frequencies
For crisp and accurate highs, the tweeter uses a lightweight PEI dome and a neodymium magnet. This ensures precise high-frequency reproduction and lively dynamics.
Features
-
2-way coaxial speaker system offering high efficiency and detailed sound performance
-
3 Ohm technology for maximized amplifier power output
-
Compact structure for easy installation even in limited spaces
Tweeter
-
0.5” / 13 mm tweeter with PEI dome for accurate treble response
-
High-performance neodymium magnet for strong magnetic flux linearity
Midrange
-
3.4” / 87 mm midrange with lightweight polypropylene cone for enhanced stiffness and sound clarity
-
Sturdy steel basket with ventilation holes for improved voice coil cooling
-
Powerful magnet system for precise impulse response
Crossover
-
Integrated 6 dB slope
Technical data
| Power handling RMS / Max. | P | 40 / 60 Watts |
| Frequency response | 110 Hz – 22,000 Hz | |
| Impedance | Z | 3 Ω |
| Sensitivity | SPL | 88 dB @ 2.83V / 1m 84 dB @ 1W / 1m |
| Outer diameter | ø | 86.9 mm / 3.43” |
| Installation diameter | ø | 79.0 mm / 3.11” |
| Installation depth | 42.0 mm / 1.65” | |
| Midrange | ||
| Impedance | Z | 3 Ω |
| DC resistance | Re | 3.0 Ω |
| Resonance frequency | Fs | 92 Hz |
| Mechanical Q factor | Qms | 3.80 |
| Electrical Q factor | Qes | 0.74 |
| Total Q factor | Qts | 0.62 |
| Compliance | Cms | 820 μm/N |
| Equivalent air volume | Vas | 1.5 L |
| Force factor | B*l | 2.9 Tm |
| Cone area | Sd | 36 cm2 |
| Moving mass | Mms | 3.6 g |
| Mechanical resistance | Rms | 0.52 kg/s |
| Voice coil diameter | ø | 25 mm |
| Voice coil winding height | 8.3 mm | |
| Max. linear excursion | Xmax | +/- 2.2 mm |
| Tweeter | ||
| Voice coil diameter | ø | 13 mm |
| Features | ||
| Tweeter | PEI dome and neodymium magnet | |
| Midbass | Injected polypropylene cone | |
| Crossover | Integrated, 6 dB highpass | |
