For the music lover, Premier/West Star has installed an Alto Aviation Entertainment System (AES) in a Citation X. No ordinary audio setup, the premium sound system makes use of four custom mid/high speaker enclosures, two subwoofers and a high-power audio amplifier. Featuring special acoustic modeling and proprietary software, Alto’s engineers have worked diligently to ensure passengers hear music as the artist originally intended. Customized for the Citation X cabin, the result is a “high-performance, realistic audio reproduction for both music and movies” that “helps to reduce listener fatigue in the aircraft cabin.”