B&C 4NDF34 4-Inch Speaker Driver - 100W RMS, 8 Ohm

The B&C 4NDF34 4 Inch Speaker Driver is Unique to B&C, a complete lineup of high sensitivity and power handling 4-inch frame transducers. These high technology products are made with our famously critical quality control, allowing new compact loudspeaker designs with appropriately scaled performance. For midrange applications our 4NDF34 offers 92dB sensitivity and 110 - 8000Hz frequency response.

B&C 4NDF34 4-Inch Speaker Driver Features

- 200 W continuous program power capacity
- 33 mm (1.3 inches) copper voice coil
- 110 - 8000 Hz response
- 92 dB sensitivity
- Neodymium magnet allows a very light yet powerful motor assembly

B&C 4NDF34 4-Inch Speaker Driver Specifications

- Nominal diameter: 100 mm (4.0 inches)
- Nominal impedance: 8 Ω
- Minimum impedance: 6.4 Ω
- Nominal power handling: 100 W
- Continuous power handling: 200 W
- Sensitivity (1W/1m): 92.0 dB
- Frequency range: 110 - 8000 Hz
- Voice coil diameter: 34 mm (1.3 inches)
- Winding material: Copper
- Former material: Glass Fibre
- Winding depth: 11 mm (0.43 inches)
- Magnetic gap depth: 7 mm (0.28 inches)
- Flux density: 1.35 T
- Connection: Spade Terminals

Design:
- Surround shape: Double Roll
- Cone shape: Exponential
- Magnet material: Neodymium Inside Slug
- Spider: Single
- Pole design: T-Pole
- Woofer cone treatment: None

Parameters:
- Fs: 110 Hz
- Re: 5.5 Ω
- Qes: 0.27
- Qms: 4.2
- Qts: 0.28
- Vas: 1.6 dm³ (0.06 ft³)
- Sd: 57.0 cm² (8.84 in²)
- η₀: 0.7 %
- Xmax: 3.8 mm
- Xvar: 5.7 mm
- Mms: 6.1 g
- Bl: 9.0 Txm
- Le: 0.23 mH
- EBP: 392 Hz

Physical:
- Overall diameter: 127 mm (5.0 inches)
- Bolt circle diameter: 115 mm (4.53 inches)
- Baffle cutout diameter: 103.0 mm (4.06 inches)
- Depth: 66 mm (2.6 inches)
- Flange and gasket thickness: 3 mm (0.04 inches)
- Air volume occupied by driver: 0.25 dm³ (0.01 ft³)
- Net weight: 0.54 kg (1.19 lb)