The A-V-P Synth MAD-5 is a digital synthesizer and sound module created by A-V-P Synthesis. It is a powerful and versatile instrument that offers a wide range of sounds and features. It has a built-in sequencer, arpeggiator, and effects processor, as well as a variety of controls for sound manipulation. It is capable of producing a wide range of sounds, from classic analog synth sounds to modern digital sounds.