B&C DE990TN 1.4-Inch Compression Driver - 100W RMS, 8 Ohm

The B&C DE990TN is a uniquely compact 86mm (3.4 inch) voice coil, neodymium high frequency driver. The compact 118mm diameter was achieved using a specially milled inside ring neodymium magnet. The diaphragm used in the DE990TN has been completely redesigned to incorporate a bent edge voice coil former, new dome and surround geometry and an optimized phase plug. These modifications combine to better control diaphragm displacement and deformations, resulting in lower distortion and a smoother higher frequency response above 10kHz.

Replacement Diaphragm: JP101973 (B&C MMD35ETN)

B&C DE990TN 1.4-Inch Compression Driver Features

- 200 W continuous program power capacity
- 1.4-inch horn throat diameter
- 86 mm (3.4 inch) aluminium voice coil
- Titanium diaphragm
- 500 - 18000 Hz response
- 107.5 dB sensitivity
- Neodymium magnet assembly with shorting copper cap

B&C DE990TN 1.4-Inch Compression Driver Specifications

- Throat Diameter: 36 mm (1.4 inches)
- Nominal Impedance: 8 Ω
- Minimum Impedance: 7.6 Ω
- Nominal Power Handling: 100 W
- Continuous Power Handling: 200 W
- Sensitivity (1W/1m): 107.5 dB
- Frequency Range: 0.5 - 18 kHz
- Recommended Crossover: 1.0 kHz
- Voice coil Diameter: 86 mm (3.4 inches)
- Winding Material: Aluminium
- Inductance: 0.1 mH
- Diaphragm Material: Titanium
- Flux Density: 1.9 T
- Magnet Material: Neodymium Ring

Physical:
- Mounting:
  - Four M6 holes 90° on 102 mm (4 inch) diameter
  - Four M6 Mounting Studs with bolts and washers included
- Overall diameter: 118 mm (4.65 inches)
- Depth: 63 mm (2.48 inches)
- Net weight: 2.0 kg