Phase Linear 1100 (Series Two)

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The Phase Linear 1100 Series Two is a high-fidelity integrated amplifier that was introduced in the late 1970s. It is considered a classic piece of audio equipment due to its exceptional sound quality, versatile features, and iconic design.Here are some details about the Phase Linear 1100 Series Two:1. Amplifier Technologies: The 1100 Series Two uses a combination of amplifier technologies to deliver high power, low distortion, and excellent frequency response. Some of the techniques used include feedback loops, voltage and current boost, and power supply decoupling.2. Power: This amplifier has a voltage gain of 22 dB, and delivers 90 watts per channel into 8 ohms or 165 watts per channel into 4 ohms. These power ratings make it suitable for driving most types of loudspeakers.3. Input and Output: The Phase Linear 1100 Series Two has two sets of RCA input connectors, one set of RCA output connectors for driving headphones, and a pair of heavy-duty binding posts for connecting loudspeakers.4. Controls: The front panel of the 1100 Series Two features a row of switches, indicators, and meters for controlling various functions such as input selection, volume, and output mode (normal, cross-over, or bi-amplification). There is also a mode switch for selecting between ultralinear, linear, and triode modes, which enables the user to adjust the output impedance and gain response.5. Build Quality: The Phase Linear 1100 Series Two is known for its high-quality construction and durability, featuring thick aluminum front and rear panels, point-to-point wiring, and high-quality capacitors and resistors. The unit is also rated to work in both 115V and 230V environments.Overall, the Phase Linear 1100 Series Two is a beloved piece of vintage audio equipment that continues to be popular among audiophiles, collectors, and musicians alike. Its advanced circuitry, versatile controls, and iconic design make it a gem of the classic audio era.