Helix Compose Basic 87mm / 3,5″ – 2-tie koaksiaalikaiutin.
Helix Basic on Compose -sarjan edullisin ja loistavalla hinta- / laatusuhteella varustettu mallisto!
Muiden Compose -mallien tapaan myös Basic on kehitetty autossa paikallaan, jonka ansiosta niiden optimointi on tehty nimenomaan autokäyttöön.
| 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 |
|---|
Scope of delivery
- 2 x CB C87.2-S3
- 1 x Mounting material
