5% discount
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Delivery time appr. 1-2 working days
- Order number: 02055S4B
- EAN 4057204321222
HELIX S 4B
A low-midrange speaker in an elegant design, trimmed for maximum sound quality.
The highly rigid membrane consists of a new type of basalt fiber-paper compound. A perfect combination to guarantee clear, unadulterated sound even at high volumes. In addition to powerful bass reproduction and incomparably neutral mids, the S 4B also shines with extremely low distortion.
The dream team is the combination with the S 1T tweeter, which ideally expands the frequency range. In conjunction with a power amplifier from Audiotec Fischer, the S speakers are at their best and provide the perfect basis for absolute top sound systems!
Features
- 100 mm bass-midrange driver with a new basalt fiber-paper compound membrane - an ideal combination of low weight, high rigidity and internal damping
- Specially shaped rubber surround for larger effective membrane area and extended maximum stroke
- Basket in individual HELIX design with additional ventilation openings for optimized cooling of the voice coil for high resilience
- Solid rubber protection with HELIX logo for the magnet systems
- Gold-plated connection terminals
Technical data
Power RMS / Max. | P | 70 / 140 watts |
Impedance | Z | 4 Ω |
DC resistor | Re | 3.4 Ω |
Frequency range | 75 Hz - 6,000 Hz | |
Resonance frequency | Fs | 120 Hz |
Mechanical quality | Qms | 4.24 |
Electrical grade | Qes | 1.11 |
Overall quality | Qts | 0.88 |
Compliance | Cms | 232 μm/N |
Equivalent volume | Vas | 1.2L |
Power factor | B*I | 4.1 Tm |
Efficiency 1 W / 1 m | SPL | 89 dB |
Membrane surface | Sd | 61 cm² |
Moving mass | Mms | 5.9g |
Membrane material | Basalt fiber paper compound | |
Mechanical resistance | Rms | 1.19 kg/s |
Voice coil diameter | ø | 25mm |
Voice coil winding width | 12mm | |
Max. linear diaphragm stroke | Xmax | +/- 3 mm |
Outside diameter | ø | 102mm |
Installation diameter | ø | 92.3mm |
Installation depth | 46.5mm | |
Recommended enclosure volumes | ||
Closed case | ||
Net volume | 3 L | |
Lower cutoff frequency (-3dB) | 100 Hz |
Scope of delivery
2 x HELIX S 4B bass-midrange driver
1 x mounting material
1 x data sheet
1 x installation template
quantity: | 1 pair |
Diameter (in cm): | 10,0 |
Housing color: | black |
Impedance (in Ohm): | 4,0 |
Speaker Type: | Mitteltöner |
Speaker Features: | 2 ways |
Peak Power (in Watt): | 140 |
Power RMS (in Watt): | 70 |
Product group: | Speaker |