{"id":150728,"date":"2022-11-06T13:42:37","date_gmt":"2022-11-06T13:42:37","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=150728"},"modified":"2022-11-06T13:42:37","modified_gmt":"2022-11-06T13:42:37","slug":"cayin-ha-3a-powerful-tube-headphone-amplifier","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/headphones\/cayin-ha-3a-powerful-tube-headphone-amplifier\/","title":{"rendered":"Cayin HA-3A: Powerful tube headphone amplifier"},"content":{"rendered":"<p><b>The Cayin HA-3A Tube<\/b>\u00a0Headphone Amplifier\u00a0allows you to enjoy your favorite music on your headphones with the best sound quality.\u00a0It combines top-notch engineering with the exquisite vintage design of a classic tube amp.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2022\/11\/83_techweek.jpg\" alt=\"Image\" \/><\/p>\n<p>The amp offers various switching options &#8211; for connecting the source, balanced on XLR connectors and unbalanced on RCA inputs are provided. Moreover, if necessary, you can connect two sources to the Cayin HA-3A and switch between them with a toggle switch on the front panel.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2022\/11\/84_techweek.jpg\" alt=\"Image\" \/><\/p>\n<p>For headphones, on the front panel of the device there are not only a 6.3 mm unbalanced jack, but also balanced outputs on 4.4 mm minijack connectors and a 4-pin XLR.\u00a0Pointer indicators of the signal level give the component a special charm.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2022\/11\/85_techweek.jpg\" alt=\"Image\" \/><\/p>\n<p>The input stages of the Cayin HA-3A amplifier are made on two ECC82 double triodes, and a pair of 6V6S tubes work at the output.\u00a0The power supply uses a 22DE4 diode.\u00a0The amplifier is capable of driving headphones with a nominal impedance of up to 600 ohms.\u00a0To select the load resistance, a special three-position switch is provided on the front panel of the device.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2022\/11\/86_techweek.jpg\" alt=\"Image\" \/><\/p>\n<p><b>Sales of the Cayin HA-3A<\/b>\u00a0tube headphone amplifier\u00a0have already begun.\u00a0Now the amp is offered only in black, but the manufacturer plans to add a silver version over time.<\/p>\n<!-- FeedbackWP Plugin --><div        class=\"rmp-widgets-container rmp-wp-plugin rmp-main-container js-rmp-widgets-container js-rmp-widgets-container--150728 \"        data-post-id=\"150728\">        <!-- Rating widget -->    <div class=\"rmp-rating-widget js-rmp-rating-widget\" role=\"group\" aria-labelledby=\"rmp-title-150728\">                    <p class=\"rmp-heading rmp-heading--title\" id=\"rmp-title-150728\">                Rate this product            <\/p>                        <div class=\"rmp-rating-widget__icons\">            <ul 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