{"id":1541210,"date":"2026-02-12T11:00:40","date_gmt":"2026-02-12T02:00:40","guid":{"rendered":"https:\/\/e-earphone.blog\/?p=1541210"},"modified":"2026-02-12T10:12:16","modified_gmt":"2026-02-12T01:12:16","slug":"%e3%80%902-21%e7%99%ba%e5%a3%b2%e3%80%91astellkern%e3%81%8b%e3%82%89%e7%b4%94%e9%8a%85%e7%ad%90%e4%bd%93%e3%81%ae%e3%83%aa%e3%83%9f%e3%83%86%e3%83%83%e3%83%89%e3%83%a2%e3%83%87%e3%83%ab%e3%80%8eault","status":"publish","type":"post","link":"https:\/\/e-earphone.blog\/?p=1541210","title":{"rendered":"\u30102\/21\u767a\u58f2\u3011Astell&#038;Kern\u304b\u3089\u7d14\u9285\u7b50\u4f53\u306e\u30ea\u30df\u30c6\u30c3\u30c9\u30e2\u30c7\u30eb\u300eA&#038;ultima SP4000 Copper\u300f\u767b\u5834\uff01"},"content":{"rendered":"<p style=\"text-align: center;\" data-path-to-node=\"2\">\u7d14\u5ea6\uff19\uff19\uff0e\uff19\uff18\uff05\u4ee5\u4e0a\u306e\u7d14\u9285\u3092\u7b50\u4f53\u306b\u63a1\u7528\u3057\u305f\u3001\u6700\u65b0\u30d5\u30e9\u30c3\u30b0\u30b7\u30c3\u30d7\u306e\u9650\u5b9a\u30e2\u30c7\u30eb\u3067\u3059\u3002<\/p>\n<hr \/>\n<p data-path-to-node=\"3\">\u00a0<\/p>\n<p data-path-to-node=\"3\">\u3053\u3093\u306b\u3061\u306f\uff01e\u30a4\u30e4\u30db\u30f3\u306ePR\u30b9\u30bf\u30c3\u30d5\u3067\u3059\uff01<br \/>\n\u4eca\u56de\u306fAstell&amp;Kern\u304b\u3089\u306e\u65b0\u88fd\u54c1\u306e\u3054\u7d39\u4ecb\u3067\u3059\u3002<\/p>\n<p data-path-to-node=\"3\">\u00a0<\/p>\n<p data-path-to-node=\"3\">\u00a0<\/p>\n<p data-path-to-node=\"3\">\u00a0<\/p>\n<h2 data-path-to-node=\"5\">Astell&amp;Kern A&amp;ultima SP4000 Copper<\/h2>\n<p data-path-to-node=\"6\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1541212\" src=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01.jpg\" alt=\"\" width=\"700\" height=\"700\" srcset=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01.jpg 700w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-300x300.jpg 300w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-150x150.jpg 150w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-180x180.jpg 180w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p data-path-to-node=\"7\"><strong><span style=\"color: #ff00ff;\"><a style=\"color: #ff00ff;\" href=\"https:\/\/www.e-earphone.jp\/products\/695280\">\u25bcAstell&amp;Kern A&amp;ultima SP4000 Copper \u3000 e\u2606\u30a4\u30e4\u30db\u30f3 \u30aa\u30f3\u30e9\u30a4\u30f3\u30b9\u30c8\u30a2\u4fa1\u683c\uffe5653,400\u3000(\u7a0e\u8fbc)<\/a><\/span><\/strong><\/p>\n<p data-path-to-node=\"7\">\u00a0<\/p>\n<p style=\"text-align: center;\" data-path-to-node=\"8\"><span style=\"font-size: 24px;\"><strong><span style=\"color: #ff0000;\">2025\u5e742\u670821\u65e5\u767a\u58f2\uff01<\/span><\/strong><\/span><\/p>\n<p data-path-to-node=\"8\">\u00a0<\/p>\n<p data-path-to-node=\"8\">\u00a0<\/p>\n<p data-path-to-node=\"8\">\u00a0<\/p>\n<h3 data-path-to-node=\"10\">\u3010\u7d14\u7c8b\u306a\u308b\u97f3\u306e\u5171\u9cf4\u3011SP4000\u306e\u30cf\u30a6\u30b8\u30f3\u30b0\u7d20\u6750\u306b\u300c\u9285\u300d\u3092\u63a1\u7528\u3057\u305f\u30ea\u30df\u30c6\u30c3\u30c9\u30e2\u30c7\u30eb<\/h3>\n<p data-path-to-node=\"11\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1541214\" src=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/detail_astell-kern_a-ultima-sp4000-copper_1.jpg\" alt=\"\" width=\"700\" height=\"700\" srcset=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/detail_astell-kern_a-ultima-sp4000-copper_1.jpg 700w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/detail_astell-kern_a-ultima-sp4000-copper_1-300x300.jpg 300w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/detail_astell-kern_a-ultima-sp4000-copper_1-150x150.jpg 150w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/detail_astell-kern_a-ultima-sp4000-copper_1-180x180.jpg 180w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p data-path-to-node=\"11\">A&amp;ultima SP4000 Copper\u306f\u3001\u305d\u306e\u5353\u8d8a\u3057\u305f\u30b5\u30a6\u30f3\u30c9\u7279\u6027\u3092\u6301\u3064\u30d5\u30e9\u30c3\u30b0\u30b7\u30c3\u30d7\u30aa\u30fc\u30c7\u30a3\u30aa\u30d7\u30ec\u30fc\u30e4\u30fcSP4000\u306b\u65b0\u305f\u306a\u4fa1\u5024\u3092\u52a0\u3048\u308b\u3079\u304f\u3001\u512a\u308c\u305f\u5c0e\u96fb\u6027\u3068\u30b7\u30fc\u30eb\u30c9\u6027\u80fd\u3092\u6301\u3064\u300c\u9285\u300d\u3092\u30cf\u30a6\u30b8\u30f3\u30b0\u306b\u63a1\u7528\u3057\u305f\u30ea\u30df\u30c6\u30c3\u30c9\u30e2\u30c7\u30eb\u3067\u3059\u3002\u9285\u306f\u7406\u8ad6\u4e0a\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u7528\u9014\u306b\u304a\u3044\u3066\u6700\u3082\u7406\u60f3\u7684\u306a\u7d20\u6750\u306e\u4e00\u3064\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u5b9f\u88fd\u54c1\u3078\u306e\u5fdc\u7528\u304c\u6975\u3081\u3066\u96e3\u3057\u3044\u7d20\u6750\u3067\u3082\u3042\u308a\u307e\u3059\u3002\u5353\u8d8a\u3057\u305f\u96fb\u6c17\u4f1d\u5c0e\u6027\u3068\u512a\u308c\u305f\u96fb\u78c1\u30b7\u30fc\u30eb\u30c9\u6027\u80fd\u306b\u3088\u308a\u3001\u308f\u305a\u304b\u306a\u4fe1\u53f7\u640d\u5931\u3055\u3048\u3082\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u9178\u5316\u304c\u65e9\u304f\u3001\u8868\u9762\u5b89\u5b9a\u6027\u304c\u4f4e\u3044\u305f\u3081\u3001\u5b9f\u7528\u5316\u306f\u975e\u5e38\u306b\u56f0\u96e3\u3067\u3059\u3002\u6e29\u5ea6\u5909\u5316\u3084\u5916\u90e8\u74b0\u5883\u306b\u5e38\u306b\u3055\u3089\u3055\u308c\u308b\u30dd\u30fc\u30bf\u30d6\u30eb\u6a5f\u5668\u306b\u304a\u3044\u3066\u306f\u3001\u305d\u306e\u30ea\u30b9\u30af\u306f\u3055\u3089\u306b\u9ad8\u307e\u308a\u307e\u3059\u3002Astell&amp;Kern\u306f\u3053\u306e\u8ab2\u984c\u3092\u907f\u3051\u308b\u3053\u3068\u306a\u304f\u6b63\u9762\u304b\u3089\u5411\u304d\u5408\u3044\u300199.98\uff05\u7d14\u5ea6\u306e\u9285\u3092\u9577\u671f\u306b\u308f\u305f\u308a\u5b89\u5b9a\u3055\u305b\u308b\u305f\u3081\u3001\u9ad8\u5ea6\u306a\u6280\u8853\u529b\u3092\u8981\u3059\u308b\u5148\u9032\u7684\u306a\u591a\u5c64\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9\u3092\u63a1\u7528\u3057\u307e\u3057\u305f\u3002\u5916\u88c5\u30c7\u30b6\u30a4\u30f3\u3082\u307e\u305f\u3001\u6c7a\u3057\u3066\u88c5\u98fe\u306e\u305f\u3081\u306e\u30c7\u30b6\u30a4\u30f3\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u9ad8\u7d14\u5ea6\u9285\u306f\u52a0\u5de5\u6642\u306b\u5fae\u7d30\u306a\u5909\u5f62\u304c\u751f\u3058\u3084\u3059\u3044\u7d20\u6750\u3067\u3059\u304c\u3001Astell&amp;Kern\u304c\u9577\u5e74\u57f9\u3063\u3066\u304d\u305f\u30ce\u30a6\u30cf\u30a6\u306b\u3088\u308a\u3001\u6975\u9650\u307e\u3067\u7cbe\u5bc6\u306a\u5236\u5fa1\u304c\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001A&amp;ultima SP4000 Copper\u306f\u5927\u91cf\u751f\u7523\u54c1\u3067\u306f\u306a\u304f\u3001\u7f8e\u3057\u304f\u4ed5\u4e0a\u3052\u3089\u308c\u305f\u30cf\u30a4\u30a8\u30f3\u30c9\u30fb\u30aa\u30fc\u30c7\u30a3\u30aa\u30aa\u30d6\u30b8\u30a7\u3068\u3057\u3066\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u4f55\u3088\u308a\u3082\u305d\u306e\u30b5\u30a6\u30f3\u30c9\u3053\u305d\u304c\u3001\u3053\u306e\u59a5\u5354\u306a\u304d\u30af\u30e9\u30d5\u30c4\u30de\u30f3\u30b7\u30c3\u30d7\u306e\u96c6\u5927\u6210\u3067\u3059\u3002\u8a87\u5f35\u3084\u8272\u4ed8\u3051\u306e\u306a\u3044\u97f3\u306f\u3001\u697d\u5668\u306e\u8cea\u611f\u3068\u91cd\u307f\u3001\u6f14\u594f\u306e\u901f\u5ea6\u3084\u606f\u9063\u3044\u307e\u3067\u3082\u514b\u660e\u306b\u63cf\u304d\u51fa\u3057\u3001\u9285\u672c\u6765\u306e\u7279\u6027\u306b\u3088\u3063\u3066\u3055\u3089\u306b\u6d17\u7df4\u3055\u308c\u305f\u3001\u539f\u97f3\u306e\u672c\u8cea\u7684\u306a\u8868\u73fe\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u6df1\u304f\u529b\u5f37\u3044\u4f4e\u57df\u3001\u5bc6\u5ea6\u304c\u9ad8\u304f\u660e\u77ad\u306a\u4e2d\u57df\u3001\u305d\u3057\u3066\u81ea\u7136\u306b\u6d88\u3048\u3086\u304f\u9ad8\u57df\u304c\u4e00\u4f53\u3068\u306a\u3063\u3066\u6d41\u308c\u3001\u97f3\u3092\u901a\u3058\u3066\u611f\u60c5\u3092\u4f59\u3059\u3068\u3053\u308d\u306a\u304f\u4f1d\u3048\u307e\u3059\u3002<\/p>\n<p data-path-to-node=\"11\">\u00a0<\/p>\n<p data-path-to-node=\"11\">\u00a0<\/p>\n<p data-path-to-node=\"11\">\u00a0<\/p>\n<h3 data-path-to-node=\"11\">\u30d9\u30fc\u30b9\u30e2\u30c7\u30eb\uff1aA&amp;ultima SP4000<\/h3>\n<p><iframe loading=\"lazy\" title=\"\u30102025\u5e74\u306e\u6700\u9ad8\u5cf0\uff01\uff1f\u3011Astell&amp;Kern A&amp;ultima SP4000\u306e\u9032\u5316\u304c\u30e4\u30d0\u3044\uff01\u30d5\u30e9\u30c3\u30b0\u30b7\u30c3\u30d7DAP\u3092\u5fb9\u5e95\u89e3\u8aac\uff01\" width=\"1118\" height=\"629\" src=\"https:\/\/www.youtube.com\/embed\/_QdIsJHwQyY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>\u300eA&amp;ultima SP4000\u300f\u306f\u3001\u5148\u9032\u306e\u30aa\u30af\u30bf\u30aa\u30fc\u30c7\u30a3\u30aa\u56de\u8def\u69cb\u6210\u3092\u63a1\u7528\u3057\u3001\u6700\u5148\u7aef\u6280\u8853\u3068\u6700\u9ad8\u5cf0\u306e\u30b9\u30da\u30c3\u30af\u306e\u878d\u5408\u306b\u3088\u3063\u3066\u3001SP3000\u3092\u8d85\u3048\u308b\u30aa\u30fc\u30c7\u30a3\u30aa\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u771f\u9ac4\u3068\u65b0\u6b21\u5143\u306e\u30b5\u30a6\u30f3\u30c9\u3092\u63d0\u4f9b\u3059\u308b\u6700\u65b0\u30d5\u30e9\u30c3\u30b0\u30b7\u30c3\u30d7\u30e2\u30c7\u30eb\u3067\u3059\u3002AK4191EQ\u3068AK4499EX DAC\u304c1\u5bfe1\u306e\u72b6\u614b\u30674\u57fa\u642d\u8f09\u3057\u305f\u3001\u771f\u306eQuad DAC\u69cb\u6210\u3068\u306a\u308b\u72ec\u81ea\u306eOCTA\u30aa\u30fc\u30c7\u30a3\u30aa\u56de\u8def\u69cb\u9020\u63a1\u7528\u306b\u3088\u308a\u3001\u4fe1\u53f7\u51e6\u7406\u80fd\u529b\u3092\u5927\u5e45\u306b\u5f37\u5316\u3002SP4000\u306f\u3001SP3000\u306e2\u500d\u306eOP AMP\u3092\u4f7f\u7528\u3057\u6c34\u5e73\u306b\u4e26\u5217\u914d\u7f6e\u3059\u308b\u3053\u3068\u3067\u3001\u96fb\u6d41\u3092\u5927\u5e45\u306b\u5897\u52a0\u3055\u305b\u308bHigh Driving Mode\u3092\u642d\u8f09\u3002\u3053\u308c\u306b\u3088\u308a\u901a\u5e38\u306f\u51fa\u529b\u3092\u4e0a\u3052\u308b\u3068\u4f9b\u7d66\u96fb\u6d41\u304c\u5897\u52a0\u3057\u3066THD\u306b\u5f71\u97ff\u3057\u3001\u9006\u306b\u30ce\u30a4\u30ba\u3092\u6e1b\u3089\u3059\u3068\u51fa\u529b\u304c\u4e0d\u8db3\u3059\u308b\u3068\u3044\u3046\u9577\u5e74\u306e\u554f\u984c\u3092\u30af\u30ea\u30a2\u3057\u3001\u3088\u308a\u6df1\u304f\u5965\u884c\u304d\u306e\u3042\u308b\u30d1\u30ef\u30d5\u30eb\u306a\u30b5\u30a6\u30f3\u30c9\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u304b\u3089\u30a2\u30ca\u30ed\u30b0\u4fe1\u53f7\u306b\u5909\u63db\u3055\u308c\u308b\u969b\u306b\u8d77\u3053\u308b\u5404\u5468\u6ce2\u6570\u5e2f\u306e\u30ba\u30ec\u3067\u3042\u308b\u7fa4\u9045\u5ef6\u3092\u6700\u5c0f\u5316\u3059\u308b\u3001\u72ec\u81ea\u306eESA\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3092\u63a1\u7528\u3002\u96fb\u6e90\u306b\u306f\u65b0\u305f\u306bLDO\u30ec\u30ae\u30e5\u30ec\u30fc\u30bf\u30fc\u3092\u642d\u8f09\u3057\u305f\u3053\u3068\u3067\u3001\u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\u3092\u5b89\u5b9a\u5316\u3057\u3001\u6700\u9ad8\u30ec\u30d9\u30eb\u306e\u8d85\u4f4e\u30ce\u30a4\u30ba\u5316\u3092\u5b9f\u73fe\u3002Any Layer HDI PCB\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u63a1\u7528\u3067\u3001\u8907\u96d1\u306a\u56de\u8def\u3092\u7cbe\u5bc6\u306b\u8a2d\u8a08\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u3001\u4fe1\u53f7\u30ed\u30b9\u3092\u6700\u5c0f\u5316\u3002\u3055\u3089\u306b\u7d14\u5ea699.9%\u306e\u9285\u88fd\u30b7\u30fc\u30eb\u30c9\u7f36\u3092Astell&amp;Kern\u3068\u3057\u3066\u521d\u63a1\u7528\u3057\u3001\u5916\u6765\u30ce\u30a4\u30ba\u3084\u96fb\u78c1\u5e72\u6e09\u3092\u906e\u65ad\u3057\u3066\u3044\u307e\u3059\u3002SP4000\u306fAstell&amp;Kern\u521d\u306eFull Android OS\u3092\u63a1\u7528\u3002\u72ec\u81ea\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u6280\u8853\u3067\u3042\u308bADP\u306b\u3088\u3063\u3066Android OS\u306eSRC\u3092\u514b\u670d\u3057\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u74b0\u5883\u3067\u3082\u30d3\u30c3\u30c8\u30d1\u30fc\u30d5\u30a7\u30af\u30c8\u306a\u30ed\u30b9\u30ec\u30b9\u518d\u751f\u3092\u53ef\u80fd\u306b\u3057\u307e\u3057\u305f\u3002\u305d\u3057\u3066\u7b2c2\u4e16\u4ee3DAR\u6280\u8853\u3068\u306a\u308bAdvanced DAR\u3092\u642d\u8f09\u3002VSE\u3092\u4f7f\u7528\u3057\u3066\u5931\u308f\u308c\u305f\u500d\u97f3\u3092\u4eee\u60f3\u5fa9\u5143\u3057\u3001\u521d\u671f\u6bb5\u968e\u3067\u97f3\u8cea\u3092\u5411\u4e0a\u3055\u305b\u3001\u3088\u308a\u9ad8\u7cbe\u5ea6\u306a\u30a2\u30c3\u30d7\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3092\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002\u6a5f\u80fd\u6027\u3068\u30a8\u30e2\u30fc\u30b7\u30e7\u30ca\u30eb\u306a\u30c7\u30b6\u30a4\u30f3\u3092\u878d\u5408\u3057\u305f\u7b2c4.5\u4e16\u4ee3UI\u3092\u642d\u8f09\u3002\u30cf\u30a6\u30b8\u30f3\u30b0\u7d20\u6750\u306b\u306fStainless Steel 904L\u3092\u63a1\u7528\u30026\u30a4\u30f3\u30c12K\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u3001Snapdragon 6125 Octa-core CPU\u642d\u8f09\u3067\u5feb\u9069\u306a\u64cd\u4f5c\u6027\u3068\u30b5\u30a6\u30f3\u30c9\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3002\u307e\u305f\u30b7\u30e5\u30e9\u30f3\u30b1\u30f3\u30ab\u30fc\u30d5\u3092\u4f7f\u7528\u3057\u305f\u5c02\u7528\u30ec\u30b6\u30fc\u30b1\u30fc\u30b9\u3068\u3001\u30a4\u30e4\u30db\u30f3\u3084\u30b1\u30fc\u30d6\u30eb\u3092\u643a\u5e2f\u3059\u308b\u306e\u306b\u4fbf\u5229\u306a\u30ec\u30b6\u30fc\u30dd\u30fc\u30c1\u304c\u4ed8\u5c5e\u3057\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-path-to-node=\"12\">\u30b9\u30da\u30c3\u30af\uff08\u88fd\u54c1\u4ed5\u69d8\uff09<\/h3>\n<table width=\"642\">\n<tbody>\n<tr>\n<td width=\"189\">\n<p>\u30e2\u30c7\u30eb\u540d<\/p>\n<\/td>\n<td width=\"454\">\n<p>A&amp;ultima SP4000 Copper<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30ab\u30e9\u30fc<\/p>\n<\/td>\n<td width=\"454\">\n<p>Copper<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u672c\u4f53\u7d20\u6750<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u9285\uff08\u7d14\u5ea699.98%\uff09<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4<\/p>\n<\/td>\n<td width=\"454\">\n<p>6\u30a4\u30f3\u30c1 2K\uff082160\u00d71080\uff09\u30bf\u30c3\u30c1\u30b9\u30af\u30ea\u30fc\u30f3<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30b5\u30a4\u30ba (W\u00d7H\u00d7D)<\/p>\n<\/td>\n<td width=\"454\">\n<p>85mm \u00d7 149.8mm \u00d7 19.5mm<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u91cd\u91cf<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u7d04642g<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30d5\u30a1\u30fc\u30e0\u30a6\u30a7\u30a2\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/p>\n<\/td>\n<td width=\"454\">\n<p>OTA<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u52d5\u4f5c\u6e29\u5ea6<\/p>\n<\/td>\n<td width=\"454\">\n<p>0\u2103 ~ +40\u2103<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5bfe\u5fdcOS<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u00a0Windows 10 (32\/64bit) 11 (64bit) \/ MAC OS X 10.7<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5185\u8535\u30e1\u30e2\u30ea<\/p>\n<\/td>\n<td width=\"454\">\n<p>256GB [NAND] \u203b\u30b7\u30b9\u30c6\u30e0\u9818\u57df\u3092\u542b\u3080<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5916\u90e8\u30e1\u30e2\u30ea\u5bfe\u5fdc<\/p>\n<\/td>\n<td width=\"454\">\n<p>microSD\u30b9\u30ed\u30c3\u30c8\u00d71 (\u6700\u59272TB)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>Wi-Fi<\/p>\n<\/td>\n<td width=\"454\">\n<p>802.11 a\/b\/g\/n\/ac (2.4\/5GHz)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>Bluetooth<\/p>\n<\/td>\n<td width=\"454\">\n<p>V5.0 (A2DP, AVRCP \/ SBC, AAC, Qualcomm\u00ae aptX&#x2122; HD, LDAC, LHDC)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5bfe\u5fdc\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f<\/p>\n<\/td>\n<td width=\"454\">\n<p>WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>CPU<\/p>\n<\/td>\n<td width=\"454\">\n<p>Octa-core<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>DAC<\/p>\n<\/td>\n<td width=\"454\">\n<p>AKM AK4191EQ\u00d74 + AK4499EX\u00d74 (Real Quad DAC)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5bfe\u5fdc\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8<\/p>\n<\/td>\n<td width=\"454\">\n<p>PCM\u6700\u5927 : 768KHz (16\/24\/32bit)<br \/>\nDSD\u6700\u5927 : DSD512 (22.4MHz\/1bit) \u30b9\u30c6\u30ec\u30aa<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5165\u529b<\/p>\n<\/td>\n<td width=\"454\">\n<p>USB Type-C (\u5145\u96fb\uff06\u30c7\u30fc\u30bf\u8ee2\u9001)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u51fa\u529b<\/p>\n<\/td>\n<td width=\"454\">\n<p>3.5mm3\u6975\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9\u51fa\u529b(\u5149\u30c7\u30b8\u30bf\u30eb\u51fa\u529b\u517c\u7528)<\/p>\n<p>4.4mm5\u6975\u30d0\u30e9\u30f3\u30b9\u51fa\u529b (5\u6975GND\u7d50\u7dda)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u30ec\u30d9\u30eb<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 4.1Vrms \/ \u30d0\u30e9\u30f3\u30b9 8.2Vrms (\u7121\u8ca0\u8377)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 3.5mm (0.7\u03a9) \/ \u30d0\u30e9\u30f3\u30b9 4.4mm (1.7\u03a9)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5468\u6ce2\u6570\u7279\u6027<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u00b10.006dB (20Hz~20kHz)\u00a0\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ \u00b10.006dB (20Hz~20kHz) \u30d0\u30e9\u30f3\u30b9<br \/>\n\u00b10.06dB (20Hz~70kHz)\u00a0\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ \u00b10.06dB (20Hz~70kHz) \u30d0\u30e9\u30f3\u30b9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>S\/N\u6bd4<\/p>\n<\/td>\n<td width=\"454\">\n<p>129dB @ 1kHz, \u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ 131dB @ 1kHz, \u30d0\u30e9\u30f3\u30b9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30af\u30ed\u30b9\u30c8\u30fc\u30af<\/p>\n<\/td>\n<td width=\"454\">\n<p>-136dB @ 1kHz, \u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ -145dB @ 1kHz, \u30d0\u30e9\u30f3\u30b9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>THD+N<\/p>\n<\/td>\n<td width=\"454\">\n<p>0.0005% @ 1kHz, \u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ 0.0003% @ 1kHz, \u30d0\u30e9\u30f3\u30b9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>IMD<\/p>\n<\/td>\n<td width=\"454\">\n<p>0.0004% 800Hz 10kHz (4:1)\u30a2\u30f3\u30d0\u30e9\u30f3\u30b9 \/ 0.0004% 800Hz 10kHz (4:1)\u30d0\u30e9\u30f3\u30b9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30af\u30ed\u30c3\u30af\u30b8\u30c3\u30bf\u30fc<\/p>\n<\/td>\n<td width=\"454\">\n<p>25ps (Typ)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30af\u30ed\u30c3\u30af\u30b8\u30c3\u30bf\u30fc<\/p>\n<\/td>\n<td width=\"454\">\n<p>250 fs<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30d0\u30c3\u30c6\u30ea\u30fc<\/p>\n<\/td>\n<td width=\"454\">\n<p>6,780mAh 3.8V \u30ea\u30c1\u30a6\u30e0\u30dd\u30ea\u30de\u30fc<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u5145\u96fb\u6642\u9593<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u7d045\u6642\u9593\u00a0(QC 3.0\u5145\u96fb\u6642)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u518d\u751f\u6642\u9593<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u7d0410\u6642\u9593<\/p>\n<p>(Nomal Mode, FLAC, 44.1KHz\/16bit, Vol.50, LCD\u30aa\u30d5, \u30a2\u30f3\u30d0\u30e9\u30f3\u30b9\u51fa\u529b)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u4ed8\u5c5e\u54c1<\/p>\n<\/td>\n<td width=\"454\">\n<p>SP4000\u5c02\u7528\u30ec\u30b6\u30fc\u30b1\u30fc\u30b9, \u30a4\u30e4\u30db\u30f3\u643a\u5e2f\u7528\u30ec\u30b6\u30fc\u30dd\u30fc\u30c1<\/p>\n<p>USB Type-C to Type-C\u30b1\u30fc\u30d6\u30eb,<\/p>\n<p>\u753b\u9762\u4fdd\u8b77\u30b7\u30fc\u30c8, microSD\u30ab\u30fc\u30c9\u30b9\u30ed\u30c3\u30c8\u30ab\u30d0\u30fc<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u751f\u7523\u56fd<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u97d3\u56fd<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"189\">\n<p>\u30e1\u30fc\u30ab\u30fc\u4fdd\u8a3c<\/p>\n<\/td>\n<td width=\"454\">\n<p>\u672c\u4f531\u5e74 \/ \u4ed8\u5c5e\u54c190\u65e5<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-size: 12px;\">\uff0a\u672c\u88fd\u54c1\u306e\u88fd\u54c1\u4fdd\u8a3c\u306b\u3042\u305f\u3063\u3066\u306f\u9818\u53ce\u66f8\u30fb\u7d0d\u54c1\u66f8\u30fb\u30ec\u30b7\u30fc\u30c8\uff08\u65e5\u4ed8\u8a18\u8f09\uff09\u7b49\u306e\u8cfc\u5165\u8a3c\u660e\u66f8\u3092\u5fc5\u305a\u4e00\u7dd2\u306b\u4fdd\u7ba1\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0amicroSD\u30ab\u30fc\u30c9\u306f\u5225\u58f2\u308a\u3067\u3059\u3002\u5168\u3066\u306emicroSD\u30ab\u30fc\u30c9\u306e\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0a\u5168\u3066\u306eBluetooth\u6a5f\u5668\u306e\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0aUSB-DAC\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u5225\u9014\u97f3\u697d\u518d\u751f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u304c\u5fc5\u8981\u3067\u3059\u3002\u5168\u3066\u306e\u63a5\u7d9a\u6a5f\u5668\u3068\u306e\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0aUSB\u30aa\u30fc\u30c7\u30a3\u30aa\u51fa\u529b\u3092\u4f7f\u7528\u6642\u3001\u5168\u3066\u306e\u63a5\u7d9a\u6a5f\u5668\u3068\u306e\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0a\u672c\u88fd\u54c1\u306fMTP\u63a5\u7d9a\u3067\u3059\u3002Mac PC\u3092\u3054\u4f7f\u7528\u306e\u5834\u5408\u306f\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30bd\u30d5\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0a\u30aa\u30fc\u30c7\u30a3\u30aa\u6e2c\u5b9a\u306fNomal Mode\u6642\u306b\u57fa\u3065\u304d\u307e\u3059\u3002\u30aa\u30fc\u30c8\u30df\u30e5\u30fc\u30c8\u306f\u4f7f\u7528\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/span><\/p>\n<p><span style=\"font-size: 12px;\">\uff0a\u4e0a\u8a18\u4ed5\u69d8\u306f2026\u5e742\u6708\u73fe\u5728\u306e\u60c5\u5831\u306b\u57fa\u3065\u304d\u307e\u3059\u3002\u54c1\u8cea\u306e\u5411\u4e0a\u306e\u305f\u3081\u4e88\u544a\u7121\u304f\u5909\u66f4\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u306e\u3067\u3054\u4e86\u627f\u9858\u3044\u307e\u3059\u3002<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr data-path-to-node=\"14\" \/>\n<p data-path-to-node=\"6\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1541212\" src=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01.jpg\" alt=\"\" width=\"700\" height=\"700\" srcset=\"https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01.jpg 700w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-300x300.jpg 300w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-150x150.jpg 150w, https:\/\/e-earphone.blog\/wp-content\/uploads\/2026\/02\/8800309900641-01-180x180.jpg 180w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p data-path-to-node=\"7\"><strong><span style=\"color: #ff00ff;\"><a style=\"color: #ff00ff;\" href=\"https:\/\/www.e-earphone.jp\/products\/695280\">\u25bcAstell&amp;Kern A&amp;ultima SP4000 Copper \u3000 e\u2606\u30a4\u30e4\u30db\u30f3 \u30aa\u30f3\u30e9\u30a4\u30f3\u30b9\u30c8\u30a2\u4fa1\u683c\uffe5653,400\u3000(\u7a0e\u8fbc)<\/a><\/span><\/strong><\/p>\n<p data-path-to-node=\"7\">\u00a0<\/p>\n<p data-path-to-node=\"17\">\u4eca\u56de\u3054\u7d39\u4ecb\u3057\u305fA&amp;ultima SP4000 Copper\u306f\u3001e\u2606\u30a4\u30e4\u30db\u30f3\u306e\u5927\u962a\u65e5\u672c\u6a4b\u672c\u5e97\u3001\u79cb\u8449\u539f\u5e97\u3001\u540d\u53e4\u5c4b\u5927\u9808\u5e97\u306b\u3066\u8a66\u8074\u6a5f\u3092\u3054\u7528\u610f\u3057\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n<p data-path-to-node=\"18\">\u6700\u5f8c\u307e\u3067\u3054\u89a7\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01 \u4ee5\u4e0aPR\u30b9\u30bf\u30c3\u30d5\u304c\u304a\u9001\u308a\u3057\u307e\u3057\u305f\uff01<\/p>\n<p data-path-to-node=\"19\">\u203b\u8a18\u4e8b\u4e2d\u306e\u5546\u54c1\u4fa1\u683c\u30fb\u60c5\u5831\u306f\u63b2\u8f09\u5f53\u6642\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7d14\u5ea6\uff19\uff19\uff0e\uff19\uff18\uff05\u4ee5\u4e0a\u306e\u7d14\u9285\u3092\u7b50\u4f53\u306b\u63a1\u7528\u3057\u305f\u3001\u6700\u65b0\u30d5\u30e9\u30c3\u30b0\u30b7\u30c3\u30d7\u306e\u9650\u5b9a\u30e2\u30c7\u30eb\u3067\u3059\u3002<\/p>\n","protected":false},"author":46,"featured_media":1541219,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,12],"tags":[],"_links":{"self":[{"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/posts\/1541210"}],"collection":[{"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/users\/46"}],"replies":[{"embeddable":true,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1541210"}],"version-history":[{"count":3,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/posts\/1541210\/revisions"}],"predecessor-version":[{"id":1541221,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/posts\/1541210\/revisions\/1541221"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=\/wp\/v2\/media\/1541219"}],"wp:attachment":[{"href":"https:\/\/e-earphone.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1541210"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1541210"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/e-earphone.blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1541210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}