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Technical Highlights
- The impedance is 4 Ω, the rated power is 25 W RMS.
- The music power is 50 W, sound pressure level of 88 dB.
- Ferrite magnet, 100 mm glass fiber polyamide basket with 25 mm tweeter.
- More technical details
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UG B100 N (B-stock) by ETON
The UG B100 N (B-stock) from ETON is a 2-way speaker system for BMW vehicles, designed as a plug and play system. The technical specifications include a 100 mm midrange driver with a fiberglass-reinforced polyamide basket and a 25 mm fabric tweeter. A ribbed, impregnated paper diaphragm and a strong ferrite magnet form the central components of sound production. The system has an impedance of 4 Ohms and a nominal power of 25 Watts RMS. Installation is done via a front mounting against the door panel and custom-fit connection terminals. The delivery includes tweeter crossover cables as well as special tweeter mounts. As this is B-stock, there may be cosmetic defects or damaged original packaging, while the technical functionality remains flawless.
- BMW Speaker Set
- 2-way speaker system
- 100 mm midrange driver (4 inches)
- 25 mm fabric tweeter (1 inch)
- Fiberglass-reinforced polyamide basket (N-basket)
- Ribbed, impregnated paper diaphragm
- Extremely strong ferrite magnet
- Large sealing flange
- Includes tweeter crossover and tweeter mounts
- Plug and play with custom-fit connection terminals
- Front mounting
- Tweeter: 25 mm
- Midrange driver: 100 mm
- Impedance: 4 Ohms
- Nominal power: 25 Watts RMS
- Music handling capacity: 50 Watts
- Sound pressure level: 88 dB

