“Made in Germany” starts with our entry-level ALPHA line, which we already produce for you in our own factory. The systems, which are designed in dimensions for best installation, are very easy to install in original vehicle installation bays. ALPHA - One-piece titanium tweeter with 30 mm dome in a highly damped plastic housing - One-piece, sturdy metal basket with polypropylene membrane - Compact crossovers mounted directly on the speaker basket - For tweeter system mounting and installation rings, bass grille and other mounting accessories included Technical data Tweeter diameter: 40.5 mm Diameter of woofer: 16.5 cm Load capacity: 50 W RMS / 120 W Max. Transmission range: 42 Hz - 28 kHz Impedance: 4 ohms Crossover frequency: 4.5 kHz (-/12 dB/Oct.) Sensitivity: 90 dB (2.83 V / 1 m)

https://soundtuningstation.gr/product/ac6511/