The model 405 is a high performance two - channel phono pre - amplifier designed for use in professional applications.

该模型405是一款高性能2声道唱机前 置 放大器为专业应用而设计的.

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This transformer coupled line pre - amplifier is the ultimate in Audio Note DIY engineering.

这种变压器耦合线路前 置 放大器是最终的音频注意建材工程.

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Two schemes , using MMIC and using discrete component ( PHEMT ), are adopted in designing pre - amplifier respectively.

前 置 放大器采用了MMIC和分立元件 ( pHEMT ) 两种方案.

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