{"id":38614,"date":"2025-08-13T13:45:08","date_gmt":"2025-08-13T11:45:08","guid":{"rendered":"https:\/\/hifimarket.ee\/product\/astellkern-aultima-sp4000-portable-music-player\/"},"modified":"2026-03-09T16:05:57","modified_gmt":"2026-03-09T14:05:57","slug":"astellkern-aultima-sp4000-portable-music-player","status":"publish","type":"product","link":"https:\/\/hifimarket.ee\/et\/toode\/astellkern-aultima-sp4000-portable-music-player\/","title":{"rendered":"Astell&Kern A&ultima SP4000 Portable Music Player"},"content":{"rendered":"
\n

Enhanced Signal Processing Capabilities with Octa Audio Circuit Architecture<\/h4>\n

In the SP3000<\/strong>, the digital-to-analog signal processing structure was separated in a 1:2 ratio. With the SP4000<\/strong>, it has evolved into a 1:1 architecture. This new structure, where one AK4191 digital processor is paired with one AK4499EX DAC, allows digital signals to be delivered precisely to a single DAC without the need to distribute noise, enabling improved signal separation and processing.<\/p>\n

Through continuous research and innovation in circuit technology, the SP4000<\/strong> successfully implements a true Quad DAC\u2014a feat previously considered impossible due to noise and other issues. As a result, the SP4000<\/strong> achieves an impressive SNR (Signal-to-Noise Ratio) of 131dB, on par with the independent dual audio circuit of its predecessor.<\/p>\n

Supports High Driving Mode for Premium Sound Performance<\/h4>\n

The SP4000<\/strong> features twice as many OPAMPs arranged in parallel compared to its predecessor, delivering richer and more detailed sound. High Driving Mode provides powerful and stable output\u2014much like a four-wheel-drive vehicle confidently navigating rough terrain. It\u2019s designed to reproduce even the most delicate sonic details with precision, allowing you to enjoy deeper, clearer, and more immersive music.<\/p>\n

Top-Tier Noise Suppression (Ultra Low Noise LDO Regulator)<\/h4>\n

The SP4000<\/strong> features a newly implemented LDO (Low Dropout) Regulator in its power supply, which reduces noise by up to 97% compared to previous models. LDO Regulators are high-performance components typically used in precision medical devices and 5G communication equipment. They help stabilize battery voltage and effectively suppress noise, resulting in cleaner, purer sound.<\/p>\n

Precision Sound with Any Layer HDI PCB<\/h4>\n

To achieve the highest sound quality, the SP4000<\/strong> incorporates top-tier Any Layer HDI (High-Density Interconnect) PCB technology. Commonly used in smartphones and high-performance electronic devices, this advanced circuit board allows for the precise design of complex circuitry within a compact space. It minimizes signal loss, enabling the delivery of a more refined and detailed sound.<\/p>\n

Equipped with 99.9% Pure Copper Shield Can<\/h4>\n

The SP4000<\/strong> is equipped with a precision-engineered Shield Can to block various types of noise and electromagnetic interference that could affect the audio block. For the first time in Astell&Kern\u2019s<\/strong> lineup, a 99.9% pure copper Shield Can is used\u2014providing not only exceptional shielding performance but also delivering sound that is clearer and more distinct than ever before.<\/p>\n

Drive Your Music, Latest Snapdragon Octa-Core CPU for the Newest Flagship Device<\/h4>\n

A&ultima SP4000<\/strong> is equipped with a Snapdragon 6125 Octa-core processor, so you can enjoy the overwhelming sound, faster system response and a redesigned generation user interface that moves comfortably and smoothly.<\/p>\n

Featuring a high-performance CPU and improved 8GB of DDR4 memory, which is twice the amount commonly used, the more powerful system is stable with fast and fluid movement.<\/p>\n

The CPU, memory and wireless communication parts are configured as one module, with the digital circuit parts arranged in the same area creating a single system on a chip (SoC). This maximizes the efficiency of the overall circuit configuration by providing more audio-only circuit space as well as reducing heat and noise from digital circuits.<\/p>\n<\/div>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

The A&ultima SP4000<\/strong> is Astell&Kern\u2019s<\/strong> newest flagship digital audio player, the result of three years of relentless research and innovation following the development of the SP3000<\/strong>. Built upon an advanced Octa audio circuit architecture, the SP4000<\/strong> distills the purest essence of audio engineering, delivering a sound experience unlike anything before it \u2013 refined, powerful, and remarkably close to perfection. Discover the SP4000<\/strong> and experience sound on an entirely new level.<\/p>\n","protected":false},"featured_media":38616,"template":"","meta":{"_acf_changed":false},"product_brand":[732],"product_cat":[404],"product_tag":[],"class_list":{"0":"post-38614","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-astell-kern","7":"product_cat-portable-music-players","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-variable"},"acf":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product\/38614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product\/38614\/revisions"}],"predecessor-version":[{"id":49423,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product\/38614\/revisions\/49423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/media\/38616"}],"wp:attachment":[{"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/media?parent=38614"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product_brand?post=38614"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product_cat?post=38614"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hifimarket.ee\/et\/wp-json\/wp\/v2\/product_tag?post=38614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}