5% discount
Prices incl. VAT plus shipping costs
available,
Delivery time appr. 1-2 working days
- Order number: 02055S3M
- EAN 4057204321802
HELIX S 3M
A cone midrange driver in an elegant design, trimmed for maximum sound quality – and therefore the perfect addition to any fully active 3-way speaker system.
The highly rigid membrane consists of a new type of basalt fiber-paper compound. An ideal combination to ensure clear, unadulterated sound even at high volumes. In addition to a maximum discoloration-free midrange reproduction, the S 3M also shines with extremely low distortion thanks to the linear neodymium magnet system.
The dream team is the combination with the S 1T tweeter and the S 6B or S 4B bass-midrange speaker. 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
- 75 mm cone midrange driver with a new basalt fiber-paper compound membrane – an ideal combination of low weight, high rigidity and optimal internal damping
- Highly efficient, compact neodymium magnet system for linear drive and minimal harmonic distortion
- Low-resonance basket made of glass fiber reinforced plastic with optimized voice coil ventilation for high resilience
- Grid included in delivery
Technical data
| Power RMS / Max. | P | 75 / 150 Watt (High pass > 400 Hz at 24 dB/Oct.) |
| Impedance | Z | 4 Ω |
| DC resistor | Re | 3.2 Ω |
| Frequency range | 400 Hz - 6,000 Hz | |
| Resonance frequency | Fs | 130Hz |
| Mechanical quality | Qms | 4.47 |
| Electrical grade | Qes | 0.48 |
| Overall quality | Qts | 0.43 |
| Compliance | Cms | 396 µm/N |
| Equivalent volume | Vas | 0.57 L |
| Power factor | B*I | 4.6 Tm |
| Efficiency 1 W / 1 m | SPL | 86 dB |
| Membrane surface | Sd | 32 cm² |
| Moving mass | Mms | 3.8g |
| Membrane material | Basalt fiber paper compound | |
| Mechanical resistance | Rms | 0.69 kg/s |
| Voice coil diameter | ø | 25mm |
| Voice coil winding width | 8mm | |
| Max. linear diaphragm stroke | Xmax | +/- 2mm |
| Outside diameter | ø | 90mm |
| Installation diameter | ø | 73mm |
| Installation depth | 37mm | |
| Recommended enclosure volumes | ||
| Closed housing with at least 200 ml net volume | ||
| Net volumes | Recommended DSP / amplifier settings | |
| 0.2 liters (system resonance: 230 Hz) | Separation frequency: 500 Hz Min. Slope: 12 dB/Oct. | |
| 0.4 liters (system resonance: 190 Hz) | Separation frequency: 450 Hz Min. Slope: 18 dB/Oct. | |
| 0.6 liters (system resonance: 170 Hz) | Separation frequency: 400 Hz Min. Slope: 24 dB/Oct. |
Note: The housing should always be completely filled with insulating material.
Scope of delivery
2 x HELIX S 3M midrange speakers
2 x grilles
1 x data sheet
1 x installation template
| quantity: | 1 pair |
| Diameter (in cm): | 7,5 |
| Housing color: | black |
| Impedance (in Ohm): | 4,0 |
| Speaker Type: | Mitteltöner |
| Peak Power (in Watt): | 150 |
| Power RMS (in Watt): | 75 |
| Product group: | Speaker |