The Caliber CA450 is a powerful amplifier for the car. Thanks to the maximum power of 750 watts, there is a full sound from the connected speakers. Bass sounds sound extra intense due to the Bass Boost function. The CA450 has 4 output channels. When you bridge it, you exchange 2 channels for 1 subwoofer channel. So you use the amplifier with speakers and a subwoofer at the same time and basses sound even more powerful. The amplifier is protected against overheating, overload and short circuit.