第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均;资料每比最新的一份旧 180 天,权重减半。
This is the ANNOUNCEMENT date, not a release date. Astell&Kern unveiled the PD5 on August 3, 2026 (https://www.forbes[3].com/sites/marksparrow/2026/08/03/astellkerns-pd5-player-boasts-day-long-battery-and-eight-dac-design/ and https://www.whathifi[2].com/hi-fi/portable-music-players/the-astell-and-kern-pd5-digital-audio-player-follows-the-award-winning-sr35-with-a-28-hour-battery-life-and-eight-dacs), ahead of its public debut at the Hong Kong High End AV Show on August 7-9, 2026, and explicitly did not announce pricing or availability, saying those details would follow 'soon'. No source found states when the PD5 actually went on sale, so the announcement day stands in and the confidence is unknown.
What Hi-Fi's own headline, dated 3 August 2026, describes the Astell & Kern PD5's 28-hour battery and eight-DAC design, predating the pin's stored 8 September 2026 roundup date by about five weeks; the page itself could not be fetched to quote directly.
Forbes' own headline, also dated 3 August 2026, corroborates the PD5's day-long battery and eight-DAC design, again predating the pin's stored 8 September 2026 date by about five weeks; the page itself could not be fetched to quote directly.
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