{"product_id":"astor-as-300bs-u-tube-power-amplifier","title":"ASTORAS-300Bs Vacuum Tube Single Power Amplifier","description":"\u003cdiv class=\"post-shipping-info\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"products-eyecatch\"\u003e\n\u003ch2\u003eHigh-end power amplifiers at affordable prices!\u003c\/h2\u003e\n\u003ch3\u003eManufacturer's highest grade used for Hashimoto transformers\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"products-desc-title\"\u003eDescription\u003c\/div\u003e\n\u003cp\u003eASTORThe high-end grade of the AS series power amplifier. Choke input type single power amplifier. Reliable manufacturer maintainer product, vacuum tube replacement. It's a bargain! !\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0612\/9139\/7377\/files\/IMG_0918.jpg?v=1769750729\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"products-desc-title\"\u003eCondition\u003c\/div\u003e\n\u003ctable class=\"table-spec\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eThe exterior is beautiful. Shipped after manufacturer maintenance and mirror cleaning. The 300B tube will be replaced with a new one (planned to be made by Electro-Harmonix). The interior of the 274B rectifier tube has been changed to a diode type with excellent sound quality and durability.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAccessories\u003c\/th\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"products-desc-title\"\u003eSpec\u003c\/div\u003e\n\u003ctable class=\"table-spec\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUsing Vacuum Tubes\u003c\/th\u003e\n\u003ctd\u003e300B x2, 12AX7x2, 12AU7 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTransformer used\u003c\/th\u003e\n\u003ctd\u003eHASHIMOTO Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower output\u003c\/th\u003e\n\u003ctd\u003eUL Connection 7W x 7W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBias\u003c\/th\u003e\n\u003ctd\u003eSelf-bias\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e10Hz~50kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eResidual noise\u003c\/th\u003e\n\u003ctd\u003eBelow 1mmV\/1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSkew rate\u003c\/th\u003e\n\u003ctd\u003e0.03%\/1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInput impedance\u003c\/th\u003e\n\u003ctd\u003e100kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpeakers\u003c\/th\u003e\n\u003ctd\u003e4Ω, 8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSize\u003c\/th\u003e\n\u003ctd\u003eW460 x H210x D360mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 32kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower supply\u003c\/th\u003e\n\u003ctd\u003e100V\/50,60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ExAUDIO","offers":[{"title":"Default Title","offer_id":47570730582273,"sku":"AS-330bs-u","price":520000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/9139\/7377\/files\/IMG_0914.jpg?v=1769750729","url":"https:\/\/exclusive-audio.jp\/en\/products\/astro-electronics-planning-as-kt88mkiii-vacuum-tube-power-amplifier-1","provider":"ExAUDIO","version":"1.0","type":"link"}