Arcam Alpha 9/9P is a versatile integrated amplifier that can be used as a preamplifier to drive external power amplifiers or as a stand-alone power amplifier. It is also capable of bi-amping, which means using two amplifiers to power a single pair of speakers. The Alpha 9/9P has a variety of inputs and outputs, making it compatible with a wide range of audio sources and components. It also has a built-in headphone amplifier, so you can enjoy your music privately.