B&C 4NDS34 4-Inch Speaker Driver - 100W RMS, 8 Ohm

The B&C 4NDS34 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. The 4NDS34 features a 1.3-inch copper coil, 200W continuous power handling, and frequency response from 80 - 2000Hz.

B&C 4NDS34 4-Inch Speaker Driver Features

- 200 W continuous program power capacity
- 33 mm (1.3 inches) copper voice coil
- 80 - 2000 Hz response
- 89 dB sensitivity
- Waterproofed on both sides
- Neodymium magnet allows a very light yet powerful motor assembly

B&C 4NDS34 4-Inch Speaker Driver Specifications

- Nominal diameter: 100 mm (4.0 inches)
- Nominal impedance: 8 Ω
- Minimum impedance: 6.2 Ω
- Nominal power handling: 100 W
- Continuous power handling: 200 W
- Sensitivity (1W/1m): 89.0 dB
- Frequency range: 80 - 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: 1.25 T
- Connection: Spade Terminals

Design:
- Surround shape: Single Roll
- Cone shape: Exponential
- Magnet material: Neodymium Inside Slug
- Spider: Single
- Pole design: T-Pole
- Woofer cone treatment: TWP Waterproof Both Sides
- Recommended Enclosure: 3.0 litres (0.11 cu ft)
- Recommended Tuning: 90Hz

Parameters:
- Fs: 79Hz
- Re: 5.5 Ω
- Qes: 0.25
- Qms: 8.5
- Qts: 0.24
- Vas: 2.6 dm³ (0.09 ft³)
- Sd: 57.0 cm² (8.84 inches²)
- η₀: 0.5 %
- Xmax: 3.8 mm
- Xvar: 5 mm
- Mms: 7.2 g
- Bl: 8.8 Txm
- Le: 0.21 mH
- EBP: 316 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: 0.57 kg (1.26 lb)