{"id":159686,"date":"2023-04-07T09:59:58","date_gmt":"2023-04-07T08:59:58","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=159686"},"modified":"2023-10-18T06:07:31","modified_gmt":"2023-10-18T05:07:31","slug":"ampsandsound-arch-tube-monoblocks-on-kt150","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/hi-fi\/ampsandsound-arch-tube-monoblocks-on-kt150\/","title":{"rendered":"ampsandsound Arch: Tube monoblocks on KT150"},"content":{"rendered":"<div class=\"news__content\" data-v-206174c4=\"\">\n<div data-v-206174c4=\"\">\n<p>ampsandsound has introduced a new monobloc push\u00a0&#8211;\u00a0pull tube amplifier called\u00a0Arch\u00a0.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/04\/7_techweek.webp\" alt=\"Image\" \/>Three 12BY7\u00a0pentodes work in the input stage of each monoblock\u00a0\u00a0, a pair of\u00a0KT 150\u00a0or\u00a0KT88\u00a0is installed at the output , depending on the selected bias current.\u00a0The selection is made using a dip switch on the rear panel.\u00a0The circuit used made it possible to achieve a low coefficient of non-linear distortion, for switching on with\u00a0KT88\u00a0it is less than\u00a00.06%\u00a0at maximum power, for the option with\u00a0KT150\u00a0it is less than\u00a00.08%\u00a0.<\/p>\n<\/div>\n<\/div>\n<div class=\"news__content\" data-v-206174c4=\"\">\n<div data-v-206174c4=\"\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/04\/8_techweek.webp\" alt=\"Image\" \/>To connect to a pre-amplifier, unbalanced RCA inputs and balanced XLR inputs with transformer isolation are provided.\u00a0All internal wiring is made by surface mounting.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/04\/9_techweek.webp\" alt=\"Image\" \/><\/div>\n<div class=\"ad-inpage2 inpage-banner\" data-v-653f57cb=\"\" data-v-206174c4=\"\">\n<div id=\"adfox_160819351990185606_66422598\" data-v-653f57cb=\"\"><\/div>\n<div id=\"adfox_160819354584955791_66422598\" data-v-653f57cb=\"\"><\/div>\n<\/div>\n<\/div>\n<div class=\"news__content\" data-v-206174c4=\"\">\n<div data-v-206174c4=\"\">\n<p>The output power of\u00a0the ampsandsound Arch\u00a0is\u00a065 watts\u00a0with\u00a0KT88\u00a0tubes and\u00a085 watts with\u00a0KT150\u00a0tubes\u00a0, with a claimed bandwidth of\u00a0-3 dB\u00a0from 2 to 110,000 Hz .<\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.stereoindex.com\/tech\/wp-content\/uploads\/2023\/04\/10_techweek.webp\" alt=\"Image\" \/>Ampsandsound Arch\u00a0tube mono amplifiers\u00a0are available in the US market for\u00a0US$50,000\u00a0per pair.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>ampsandsound has introduced a new monobloc push\u00a0&#8211;\u00a0pull tube amplifier called\u00a0Arch\u00a0. Three 12BY7\u00a0pentodes work in the input stage of each monoblock\u00a0\u00a0, a pair of\u00a0KT 150\u00a0or\u00a0KT88\u00a0is installed at the output , depending on the selected bias current.\u00a0The selection is made using a dip switch on the rear panel.\u00a0The circuit used made it possible to achieve a low [&hellip;] <a class=\"g1-link g1-link-more\" href=\"https:\/\/www.stereoindex.com\/tech\/hi-fi\/ampsandsound-arch-tube-monoblocks-on-kt150\/\">More<\/a><\/p>\n","protected":false},"author":10404,"featured_media":159687,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[642],"tags":[779],"class_list":{"0":"post-159686","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-hi-fi","8":"tag-news"},"acf":[],"aioseo_notices":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/159686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/users\/10404"}],"replies":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/comments?post=159686"}],"version-history":[{"count":0,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/posts\/159686\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media\/159687"}],"wp:attachment":[{"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/media?parent=159686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/categories?post=159686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.stereoindex.com\/tech\/wp-json\/wp\/v2\/tags?post=159686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}