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FM4+34+306 The Quad FM4 Tuner is another classic British design from the then Huntington based Acoustical Manufacturing Co. Ltd. The Quad FM4 Tuner was first launched in 1982 at the same time as the Quad 405-2 and was the successor to the very popular . When the Quad FM4 Tuner was first launched, there were many concerns that Quad had developed an all digital tuner. The actual..

Quad 405-2 Stereo Power Amplifier Specifications Power output: 100 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 20kHz Total harmonic distortion: 0.05% Input sensitivity: 0.5V Signal to noise ratio: 96dB Speaker load impedance: 4Ω to 16Ω Dimensions: 115 x 340.5 x 195mm