SB Acoustics SB16PFC25-4-COAX
6.5" (16.5cm) coaxial loudspeaker
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Description
The SB Acoustics SB16PFCR25-4-COAX 6.5" (16.5cm) coaxial fiber/paper composite loudspeaker is driven by a powerful ferrite magnet. The resonance frequency around 40 Hz is far outside the useful range, which means that the driver plays extremely linearly in the useful range and can be used optimally in the broadband range. The generously ventilated centring spider optimizes the rear compression behaviour to a maximum and provides additional cooling. The flattened basket ensures the smallest possible surface area on the baffle, making it easier to install the driver in small cabinets or tight spaces 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 motor system
- Non-resonant, durable connecting wires
- Compact dome tweeter with large surround
- Frequency range: 75Hz - 20kHz
Woofer data
- Nominal impedance 4 Ω
- Direct current resistance, Re 3.2 Ω
- Inductance of the voice coil, Le 0.31 mH
- Effective diaphragm area, Sd 119 cm2
- Diameter of the voice coil 25.4 mm
- Height of the voice coil 14.3 mm
- Height of the air gap 5 mm
- Linear coil stroke (p-p) 9.3 mm
- Magnetic flux density 1.1 T
- Weight of the magnet 0.36 kg
- Net weight 0.95 kg
- Free air resonance, Fs 36 Hz
- Sensitivity (2.83V/1m) 90 dB
- Mechanical Q-factor, Qms 2.6
- Electrical Q-factor, Qes 0.35
- Total Q-factor, Qts 0.31
- Moving mass incl. air, Mms 12.5 g
- Force factor, Bl 5.1 Tm
- Equivalent volume, Vas 31.3 liters
- Compliance, Cms 1.56 mm/N
- Mechanical loss, Rms 1.1 kg/s
- Rated load capacity* 40 W
- * IEC 268-5, T/S parameters measured on retracted drives.
Tweeter data
- Nominal impedance 4 Ω
- Direct current 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
- Rated load capacity* 10 W
- Magnetic flux density 1.05 T
- Weight of the magnet 0.003 kg
- Net weight 0.014 kg
Dimensions
Download data sheet
