SB Acoustics SB17CAC35 / Ceramic
6.5" (16.5cm) bass-midrange driver
still
/piece
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Description
The SB Acoustics SB17CAC35 6.5" (16.5cm) bass-midrange driver with ceramic 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 useful range, which means that the driver plays extremely linearly in the useful range and is 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 :Â
- Ventilated cast aluminum chassis for optimum strength and low compression
- Geometrically reinforced ceramic cone for optimum piston operation and low break-up
- Soft, low-damping rubber surround 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 variantÂ
- Nominal impedance 4 Ω
- Frequency range 120Hz - 3kHz
- 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 29.5 Hz
- Sensitivity (2.83 V / 1 m) 90 dB
- Mechanical Q-factor, Qms 4.70
- Electrical Q-factor, Qes 0.31
- Total Q-factor, Qts 0.29
- Moving mass incl. air, Mms 15.2 g
- Force factor, Bl 5.3 Tm
- Equivalent volume, VAS 37.8 liters
- Compliance, Cms 1.91 mm/N
- Mechanical loss, Rms 0.6 kg/s
- Nominal load capacity* 60 W
- * IEC 268-5, T/S parameters measured on retracted drives.
Data 8 Ohm variantÂ
- Nominal impedance 8 Ω
- Frequency range 120Hz - 3kHz
- 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) 86.5 dB
- Mechanical Q-factor, Qms 4.46
- Electrical Q-factor, Qes 0.40
- Total Q-factor, Qts 0.36
- Moving mass incl. air, Mms 15.4 g
- Force factor, Bl 6.2 Tm
- Equivalent volume, VAS 42 liters
- Compliance, Cms 2.13 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