{"id":129849,"date":"2021-04-28T10:38:25","date_gmt":"2021-04-28T09:38:25","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=129849"},"modified":"2024-04-08T17:00:56","modified_gmt":"2024-04-08T17:00:56","slug":"stax-srm-400s-pro-headphone-amplifier-with-many-advantages","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/hi-fi\/stax-srm-400s-pro-headphone-amplifier-with-many-advantages\/","title":{"rendered":"Stax SRM-400S PRO: Headphone amplifier with many advantages"},"content":{"rendered":"

Owners of Stax PRO electrostatic headphones\u00a0will be able to enhance<\/a>\u00a0their sound with the new SRM-400S Transistor Power Amplifier.<\/p>\n

It replaced the SRM-353X and, according to the manufacturer, has many advantages.\u00a0The new product produces a nominal bias voltage of 580 V and amplifies the audio signal with a distortion of no more than 0.01%.<\/p>\n

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The device is assembled in the circuitry of a DC amplifier, in all stages of which, as in the older model SRM-700S, field-effect transistors operate.\u00a0A custom low-noise STAX double field-effect transistor is installed at the input.\u00a0These parts are said to have been selected as carefully for the SRM-400S as they were for the SRM-700S.<\/p>\n

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In the low voltage circuit, the SRM-400S has a newly developed power transformer, which increases the accuracy and reduces the power consumption of the new product.\u00a0At the same time, the design of the chassis was also changed, which became stiffer due to the use of massive aluminum parts – this is intended to reduce the vibration effects on the signal.<\/p>\n

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The Stax SRM-400S headphone amplifier will appear in May 2021.\u00a0In the US, it will cost about $ 2,100.<\/p>\n

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