SB Acoustics SB12PFC25-4-COAX
4" (10cm) coaxial speaker
/Piece
Nur
48,45€
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Beschreibung
The SB Acoustics SB12PFCR25-4-COAX 4" (10cm) coaxial speaker fiber/paper composite is driven by a powerful ferrite magnet. The resonance frequency of around 60 Hz is far outside the usable range, which means that the driver is extremely linear in the usable range and can be used optimally in the broadband range. The generously ventilated centering spider optimizes the rear compression behavior to a maximum and provides additional cooling. The flattened basket ensures the smallest possible surface area on the baffle, which makes it easier to install the driver in small housings or tight positions in the car.
Features:
- Ventilated, reinforced plastic chassis
- Proprietary cone material with natural fibers from our own production
- Soft rubber surround with low damping for improved transient response
- Optimized engine system
- Non-resonant, durable connecting wires
- Compact dome tweeter with large surround
- Frequency range: 100Hz - 20kHz
Woofer data
- nominal impedance 4 Ω
- DC resistance, Re 3.1 Ω
- Inductance of the voice coil, Le 0.26 mH
- Effective membrane area, Sd 45 cm2
- voice coil diameter 25.4 mm
- Height of the voice coil 15 mm
- height of the air gap 5 mm
- Linear coil stroke (pp) 10 mm
- Magnetic flux density 1.0 T
- Weight of the magnet 0.40 kg
- net weight 0.86 kg
- Free air resonance, Fs 58 Hz
- Sensitivity (2.83V/1m) 87 dB
- Mechanical Q-factor, Qms 4.07
- Electrical Q-factor, Qes 0.36
- overall Q-factor, Qts 0.33
- Moving mass including air, Mms 4.5 g
- force factor, Bl 3.8 Tm
- Equivalent volume, Vas 4.8 liters
- Compliance, Cms 1.66 mm/N
- Mechanical loss, Rms 0.4 kg/s
- Nominal load capacity* 30 W
- * IEC 268-5, T/S parameters measured on retracted drives.
Tweeter data
- nominal impedance 4 Ω
- DC resistance, Re 3.0 Ω
- voice coil diameter 12.4 mm
- Height of the voice coil 1.2 mm
- height of the air gap 1.5 mm
- resonance of free air, Fs 1300 Hz
- Sensitivity (2.83V/1m) 89 dB
- Nominal load capacity* 10 W
- Magnetic flux density 1.05 T
- Weight of the magnet 0.003 kg
- Net weight 0.014 kg
Dimensions
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