6.5-inch Drivers
NDC9306
The NDC9306 is a 6.5-inch neodymium LF driver for compact professional loudspeakers. It delivers 180 W nominal power with 95 dB sensitivity and a 103 Hz–7.7 kHz response, using a 50 mm CCAW voice coil in a cast aluminium basket. Neodymium magnet, cast aluminium basket. 95 dB sensitivity from a 6.5" chassis.
Specifications
- Nominal Diameter
- 6.5" / 170 mm
- Rated Impedance
- 8 ohm
- Sensitivity (1W/1m)
- 95 dB
- Frequency Range
- 103 Hz - 7.7 kHz
- Voice Coil Diameter
- 50 mm / 2"
- Net Weight
- 1.8 kg
The NDC9306 is a 6.5-inch neodymium LF driver designed for compact professional loudspeaker systems. Key specifications are listed in the table on this page. Full Thiele-Small parameters available on request – contact contact@brave-audio.com.
GENERAL SPECIFICATIONS
Nominal Diameter | 6.5" / 170 mm |
Rated Impedance | 8 ohm |
Nominal Power Handling | 180 W |
Program Power | 360 W |
Sensitivity (1W/1m) | 95 dB |
Frequency Range | 103 Hz - 7.7 kHz |
Minimum Impedance (Zmin) | 7 ohm |
Voice Coil Diameter | 50 mm / 2" |
Voice Coil Material | CCAW |
Former Material | Fibre Glass |
VC Winding Depth | 14.5 mm |
Number of Layers | 2 |
Magnetic Gap Depth | 8 mm |
Basket | Cast Aluminium |
Flux Density | 1.54 T |
Magnet | Neodymium |
MOUNTING INFORMATION
Overall Diameter | 162 mm |
Bolt Circle Diameter | 172 mm |
Bolt Hole Diameter | 5.5 mm |
Baffle Cut-out Diameter | 146 mm |
Overall Depth | 86 mm |
Air Volume Occupied | 0.6 liters |
Net Weight | 1.8 kg |
Shipping Weight | 2 kg |
Shipping Carton Size | 172 x 172 x 95 mm |
THIELE-SMALL PARAMETERS
Fs (Resonance Frequency) | 103 Hz |
Re (DC Resistance) | 5.57 ohm |
Qms (Mechanical Factor) | 14.6 |
Qes (Electrical Factor) | 0.275 |
Qts (Total Factor) | 0.27 |
Cms (Compliance) | 0.135 mm/N |
Rms (Mechanical Resistance) | 0.78 kg/s |
Mms (Moving Mass) | 17.6 g |
BL Factor | 15.2 T.m |
Vas (Equivalent Air Load) | 3.6 liters |
Sd (Piston Area) | 137 cm2 |
Xmax (Linear Excursion) | +/- 5.25 mm |
Xdam (Excursion before Damage) | +/- 11.2 mm |
Le (Voice Coil Inductance) | 0.385 mH |
EBP (Efficiency Bandwidth Product) | 375 |
Half-space Efficiency | 1.4 % |
