Audiophiles' purchases include stereos, amps, LPs, hifis, and taperacks. Stereos are audio systems that typically include a radio, CD player, and speakers. Amps are amplifiers that increase the power of an audio signal. LPs are vinyl records that contain audio recordings. Hifis are high-fidelity audio systems that are designed to reproduce sound accurately. Taperacks are racks that are used to store audio tapes.