The APK 165 ohm2 system has 2 crossovers dedicated to the woofer and the tweeter

2-Ohm-Version: 4 × 131 Watt RMS an 4 Ω

45 × 45 × 45 / 78 mm

High-Quality 10-Inch HX10 EVO High-End Subwoofer

If an amplifier is connected to the radio instead

HERTZ CP 5.1K Jaguar The APK 165 ohm2 systemThe Hertz CENTO POWER CP 5. 1K was developed for high end car audio systems that combine high power, outstanding sound quality, and a space saving design. Thanks to modern Class D technology, the amplifier delivers efficient power output with minimal heat generation and is ideal for powering a complete front rear system, including a subwoofer. Hi Res Audio certification enables exceptionally detailed music playback with an extended frequency range.