The ARP Axxe is a completely variable synthesizer, ideal for live performance operation. The Axxe provides many of the features of more expensive synthesizers and can serve as the nucleus of a larger synthesizer system by interfacing with other ARP instruments. The Axxe contains one Voltage Controlled Oscillator, one Voltage Controlled Filter, one Voltage Controlled Amplifier, a Low Frequency Oscillator, Keyboard Control Voltage Memory/Sample and Hold, Noise Generator, and ADSR Envelope Generator.