The perfect solution to enhance the sound of the factory speakers in your Volvo 780 Complete speaker system (front and rear system) with all the installation material needed to replace the factory speakers. The set consists of four 2-way speakers and two accessory sets for an optimal connection to the original cables. When installed, the factory speakers are simply exchanged for this set. The existing speaker adapter rings can still be used. Please note: Depending on the year of construction, drilling or sheet metal work may be necessary. We specialize in vehicle-specific car hi-fi installations. We have also given very special thought to your vehicle. That's why we can also offer you vehicle-specific sets including subwoofers, power amplifiers, cable sets, built-in speakers and installation sets. Be sure to take note of our offers. 2 pairs of Mac Audio BLK 13.2 2-way coaxial speakers 360 watts max. Multi-pressed and coated foam-paper cone, high-strength rubber surround, silk dome tweeter, centering and magnetic field optimized by high-quality measurement method, Perfect parameter tuning for rear shelf and door installationDiaphragm material:Woofer: Coated foam-paper coneTweeter: Silk dome Technical data: System: 2-way coax systemImpedance (ohms): 4Frequency range (Hz): 35 - 23000Nominal / max. load capacity (W): 80 / 250Efficiency/sound pressure (dB/W/m): 90 (1 W / 1 m)DIN diameter (mm): 130Hole cut-out (mm): 114Installation depth (mm): 53 Installation set: 4 speakers + 2 accessory sets Set suitable for: Volvo 780 year 1185-1590 (1 W / 1 m) (front door and rear door)