700 II

About the 700 II

The Phase Linear 700 II is a legendary stereo power amplifier introduced in the 1970s, designed by Bob Carver. It delivers 350 watts per channel into 8 ohms with a frequency response from 12Hz to 40kHz and an exceptionally low total harmonic distortion of 0.009%. The amplifier features a damping factor of 1000 and a signal-to-noise ratio of 110dB, making it capable of driving demanding speaker loads down to 4Ω. It uses 12 power transistors per channel mounted on large heat sinks for efficient cooling and reliability. The design includes an Energy Limiter protection circuit to safeguard output transistors from damage under overload or short conditions. The unit measures approximately 483 x 178 x 254 mm and weighs about 20 kg. It was highly regarded for its tight bass, midrange clarity, and high-frequency definition, becoming a favorite among audiophiles, recording engineers, and musicians. The amplifier originally