Phase Linear

Phase Linear was an influential American audio equipment manufacturer founded in 1970 by Bob Carver and Steve Johnston in Seattle, Washington, before relocating to Edmonds, Washington. The company revolutionized high-power amplification in home audio systems, becoming renowned for their powerful amplifiers including the legendary Phase Linear 700 Amplifier (350 watts per channel), Phase Linear 400 Amplifier (200 watts per channel), Phase Linear 4000 Series Pre-Amplifier, and the D-500 Amplifier (505 watts per channel). These amplifiers became standard equipment in recording studios and were favored by professional musicians for their exceptional power output and reliability. Despite its relatively short lifespan, Phase Linear developed a devoted following among audio enthusiasts and significantly influenced the high-power amplifier market. The company was acquired by Pioneer Electronics in the late 1970s, leading to Bob Carver's departure to found Carver Corporation in 1979. Phase Linear was subsequently sold to Jensen Inc. in 1982 and was ultimately discontinued as a brand, though vintage Phase Linear equipment remains highly sought after by collectors and audio enthusiasts who appreciate their historical significance and robust engineering.