Brand: Phase Linear
The Phase Linear 700 (Series Two) is a high-performance professional audio amplifier that was introduced in the mid-1970s. It is part of the Phase Linear line of equipment, known for their advanced design and high-quality components.The Series Two 700 amp delivers 250 watts per channel into 4 ohms, with a frequency response of 20 Hz to 20 kHz (+0, -0.2 dB). It features a classic solid-state design, with dual JRC4558 op-amps, high-current BD139 pre-drivers, and Toshiba 2SK275 power transistors.Some notable features of the Phase Linear 700 Series Two amp include:1. Unique Darlington Configuration: The Series Two uses a unique Darlington configuration for the output stages, which provides a higher current gain and lower output impedance. This results in a more powerful and controlled amplifier.2. High-Quality Components: The Series Two uses a combination of high-quality components such as metal-film resistors, polypropylene capacitors, and film capacitors for a more precise and stable sound.3. Enhanced Feedback System: The Series Two features an enhanced feedback system, with a feedback loop that ensures stable operation at high power levels, while maintaining the low distortion characteristics that Phase Linear is known for.4. High Power: The Series Two delivers 250 watts per channel into 4-ohms, making it a powerful amplifier that can drive a wide variety of speaker systems.5. Versatile Inputs: The Series Two offers a variety of input options, including balanced XLR inputs, unbalanced RCA inputs, and tape monitor inputs.6. Durable and Reliable: The Series Two is built to last, with a solid and durable chassis, aluminum faceplate, and internal components that are designed for reliability and long-term performance.Overall, the Phase Linear 700 (Series Two) is a highly regarded professional audio amplifier that combines powerful output, advanced design, and high-quality components. It continues to be a popular choice among audio engineers, music enthusiasts, and recording studios that demand the very best in audio performance.