BMW and Mini are very particular to upgrade as they have specific locations of 10 cm in doors and very specific woofers under the front seats.
Blam developed specific products “plug and play” BM100C, BM100S and BM 200W. Will also fit Porsche Boxster and Cayman and some Audi’s
These speakers use a beautiful technology: Membrane fiberglass, soft dome tweeter, ultra-compact engine neodymium, passive filters with high quality components. Installation of these kits is very fast and the improvement is immediate: the highs are present without aggression, the sound image is actually more accurate and mediums gaining definition for more sound enjoyment.
The BM100C is a 2-way speaker 10 cm system, with 50 Watts RMS. It has a true 20mm soft dome tweeter. Its performance and its frequency response is 88 dB and 120 to 20,000 Hz. For the most demanding, the installation can be upgraded with a mini amplifier Relax RA804D