Phase Linear DRS Series Amplifiers The DRS (for Dynamic Range Series) amplifiers were introduced at the Consumer Electronics show in January 1982, and reflected the complete break with Phase Linear's past designs. The design changes in the line of amplifiers were reflected in Phase Linear's other components that year. For the first time there was now an integrated amplifier in the lineup.
DRS 250 Integrated Amplifier The DRS-250 was Phase Linear's first and only integrated amplifier. It was rated at 50 watts per channel. It was introduced in 1983. It had a list price of $875.00.