SB Acoustics SB17CRC35 / Carbon
6.5" (16.5cm) bass-midrange driver
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Description
The SB Acoustics SB17CRC35 6.5" (16.5cm) bass-midrange driver with glossy Carbon Rohacell® cone is available in a 4 Ohm and 8 Ohm version. The ultra-light and stiff cone is driven by a powerful ferrite magnet. The resonance frequency around 30 Hz is well outside the usable range, making the driver extremely linear in the usable range and ideal for 2-way use or as a pure midrange driver. The generously ventilated centring spider optimizes the rear compression behaviour to a maximum and provides additional cooling.
Features :
- Rohacell®/carbon fiber sandwich membrane for an optimized ratio of stiffness and cushioning
- Ventilated cast aluminum chassis for optimum strength and low compression
- Rubber surround with low damping for improved transient response
- Non-conductive glass fiber voice coil former for minimal attenuation
- Extended copper sleeve on the pole piece for low inductance and low distortion
- CCAW voice coil for reduced moving mass
- Durable silver wires
- Ventilated pole piece for reduced compression
Data 4 Ohm variant
- Nominal impedance 4 Ω
- Frequency range 70Hz - 4kHz
- Direct current resistance, Re 3.1 Ω
- Inductance of the voice coil, Le 0.13 mH
- Effective diaphragm area, Sd 118 cm2
- Diameter of the voice coil 35.5 mm
- Height of the voice coil 16 mm
- Height of the air gap 5 mm
- Linear coil stroke (p-p) 11 mm
- Magnetic flux density 1.0 T
- Weight of the magnet 0.54 kg
- Net weight 1.56 kg
- Free air resonance, Fs 31.5 Hz
- Sensitivity (2.83 V / 1 m) 90 dB
- Mechanical Q-factor, Qms 4.32
- Electrical Q-factor, Qes 0.35
- Total Q-factor, Qts 0.32
- Moving mass incl. air, Mms 14.2 g
- Force factor, Bl 5.0 Tm
- Equivalent volume, VAS 35.5 liters
- Compliance, Cms 1.80 mm/N
- Mechanical loss, Rms 0.65 kg/s
- Nominal load capacity* 60 W
- * IEC 268-5, T/S parameters measured on retracted drives.
Data 8 Ohm variant
- Nominal impedance 8 Ω
- Frequency range 70Hz - 4kHz
- Direct current resistance, Re 5.7 Ω
- Inductance of the voice coil, Le 0.15 mH
- Effective diaphragm area, Sd 118 cm2
- Voice coil diameter 35.5 mm
- Height of the voice coil 16 mm
- Height of the air gap 5 mm
- Linear coil stroke (p-p) 11 mm
- Magnetic flux density 1.0 T
- Weight of the magnet 0.54 kg
- Net weight 1.56 kg
- Free air resonance, Fs 28 Hz
- Sensitivity (2.83 V / 1 m) 87 dB
- Mechanical Q-factor, Qms 3.90
- Electrical Q-factor, Qes 0.37
- Total Q-factor, Qts 0.34
- Moving mass incl. air, Mms 13.3 g
- Force factor, Bl 6.0 Tm
- Equivalent volume, VAS 48 liters
- Compliance, Cms 2.43 mm/N
- Mechanical loss, Rms 0.6 kg/s
- Nominal load capacity* 60 W
- * IEC 268-5, T/S parameters measured on retracted drives.
Dimensions
Download data sheet
