PIONEER SERIES TWENTY (JAPAN 1978)
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The culmination of PIONEER's creative design can be heard with the esoteric Series Twenty Class-A components which achieve the exceptional warmth and presence of valve-type amplifiers without the drawbacks of the old designs. The Series Twenty was launched in 1978 to prove just how "high" fidelity could really reach if the cost factor is eliminated. The PIONEER M-22 is operating strictly in the Class-A mode. Admittedly low on efficiency (watts of output per power input) but unbeatably high on performance. The M-22 obtained the highs compliment when the British journal Practical Hi-Fi said the amplifier "can be regarded as the classic straight wire with gain" Technical data: 30 W/ch min. RMS at 8 ohms, from 10 to 30000 Hz Dimensions (WxHxD) 420x153x370 mm, Weight: 22 kg. Partnering components are the U-24 Stereo Programme Source Selector, C-21 Stereo Preamplifier, D-23 Multi-Amp Electronic Crossover Network.
