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Retrofit speakers for many BMW and Mini models at an affordable price? And this in a very good quality? The SIGNUM SXB loudspeaker systems prove that this does not have to be a contradiction. If the original factory sound system simply sounds too thin, these models are spot on. Brilliant highs, balanced mids and powerful bass are the rewarding results.


Everyone knows that it is not easy to retrofit good loudspeakers in BMW vehicles. For this reason, ESX has developed all components in such a way that this "hurdle" is easier to take. Through consistent plug + play implementation, it is quite easy to replace the original speakers without any problems. All connectors, screws and the speakers themselves fit perfectly.

SXB42 € 179,00*

10 cm (4”) 2-Way Coaxial Speakers

Power Rating 60/120 Watts RMS/max.

Impedance 4 Ohms, Frequency Range 75 - 22.0000 Hz

100 mm Midrange with Paper Cone

N42 Neodymium Magnet Driver

20 mm Silk Dome Neodymium Tweeter

Car-specific Connectors

Installation Depth 30 mm, Installation Opening 98 mm


Fits into:

Many BMW E/F/G and MINI R/F Models

Refer to Compatibility List


Owner's Manual

* Manufacturer's suggested retail price, changes and mistakes reserved