Founded in 1985 by Roger Quested, a veteran recording engineer whose career began at London's Olympic Studios in the 1960s, Quested Monitoring Systems is a British manufacturer of professional studio monitors based in Ottery St Mary, Devon. Roger Quested started building speakers while managing Dick James Music studios in London because he couldn't find monitors that met his standards for accuracy and transparency. The company quickly gained traction in the pro audio world, supplying monitors to studios including Abbey Road, Trident, Sarm West, and RAK Studios.

Quested's product range spans nearfield monitors like the V2104 and V2106, the midfield V2108 (their longest-running product), the three-way V3110 (offering 1000 watts of amplification), and large-format soffit-mounted systems like the Q412 and HM415. The company also produces subwoofers, amplifiers, and a residential line of speakers under the OLY series. All products are hand-built at their Devon facility.

The brand has a particularly strong following among film composers — Hans Zimmer has used Quested monitors since 1986, and composers Harry Gregson-Williams, Danny Elfman, and Ramin Djawadi are also known users. Producer Trevor Horn and electronic musician Carl Craig are among the brand's longtime advocates in the music world. Quested has built its reputation almost entirely through word-of-mouth rather than advertising, emphasizing honest, transparent sound reproduction over any particular tonal coloration.

Quested has 27 products cataloged on Equipboard, including Active & Passive Monitors, Studio Subwoofers, and Studio Monitor Amplifiers. Their gear is featured by 13 artists, with the strongest followings in Electronic, Classical, and Pop. Notable users include Hans Zimmer, DJ Umek, and Zombie Nation.