--- product_id: 754478537 title: "SP4000 High Resolution Digital Audio Player (Black)" brand: "astell&kern" price: "£4729.22" currency: GBP in_stock: true reviews_count: 3 category: "Astell&Kern" url: https://www.desertcart.co.uk/products/754478537-sp4000-high-resolution-digital-audio-player-black store_origin: GB region: United Kingdom --- # Quad-DAC with 131 dB SNR First full Android flagship w/ Google Play Ultra-low noise power architecture SP4000 High Resolution Digital Audio Player (Black) **Brand:** astell&kern **Price:** £4729.22 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your sound game—where luxury meets sonic perfection. ## Quick Answers - **What is this?** SP4000 High Resolution Digital Audio Player (Black) by astell&kern - **How much does it cost?** £4729.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/754478537-sp4000-high-resolution-digital-audio-player-black) ## Best For - astell&kern enthusiasts ## Why This Product - Trusted astell&kern brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Luxury Meets Durability:** Crafted from Rolex-grade 904L stainless steel with a Perlinger leather case and PVD ceramic back for style and resilience. - • **Next-Level Audio Refinement:** Proprietary ESA and DAR+VSE tech restore spatial harmonics and phase accuracy, delivering an analog-like, immersive listening experience. - • **Audiophile-Grade Quad-DAC Powerhouse:** Experience pristine, ultra-low distortion sound with four AK4499EX DACs delivering 131 dB SNR for unmatched clarity. - • **High-Drive Parallel Amplifier Circuit:** Pushes high-impedance headphones and power-hungry IEMs with authority and stability for a rich, dynamic soundstage. - • **Seamless Android Ecosystem Integration:** Native Android OS with Google Play means no sideloading—stream, download, and customize your music effortlessly. ## Overview The Astell&Kern SP4000 is a flagship high-resolution digital audio player featuring a groundbreaking quad-DAC setup, native Android with Google Play, and advanced proprietary audio technologies. Built with premium materials like 904L stainless steel and equipped with ultra-low noise power architecture, it delivers an expansive, crystal-clear soundstage ideal for audiophiles seeking uncompromised music fidelity and seamless streaming capabilities. ## Description Free delivery and returns on eligible orders. Buy Astell&Kern SP4000 High Resolution Digital Audio Player (Black) at desertcart UK. Review: The Very Best,(in musical terms), way of reproducing music 👍 - The Closest you can get, to the true natural way our ears + brain receptors Hear Harmony/Melody & tone colouration, = MUSIC :-) Review: Astell & Kern SP4000: Redefining Audiophile Excellence - ### SP4000: A Stunning Audiophile Upgrade That Redefines Excellence **5.0 out of 5 stars** As a dedicated audiophile, I thought my setup with the Hegel H590 integrated amplifier and Rose RS130 network player/streamer was close to perfection. Then I replaced the RS130 with the SP4000, and it’s left me questioning whether even my Hegel H590 is worthy of this extraordinary component. Hands down, the SP4000 is the finest audiophile product I’ve ever experienced. The SP4000’s build quality is exceptional—sleek, robust, and meticulously crafted, it exudes high-end engineering that perfectly complements my setup. Integration was seamless, taking over the RS130’s role with effortless precision. Sonically, the SP4000 is a revelation. It delivers a soundstage so expansive and precise it feels almost three-dimensional. Instruments are rendered with breathtaking clarity, vocals carry an intimate, lifelike texture, and the bass is deep yet controlled, never overshadowing the pristine mids or sparkling highs. It unveils details in my music I didn’t know existed, all while maintaining a smooth, fatigue-free listening experience. The SP4000’s refinement is on par with—or arguably surpasses—the Hegel H590, making me wonder if my amp is fully up to the task of showcasing this component’s brilliance. If you’re an audiophile with a high-end system, the SP4000 isn’t just an upgrade—it’s a game-changer. It’s replaced my RS130 and elevated my setup to new heights. Pro tip: Allow 50-100 hours of burn-in to unlock its full potential. Worth every penny for those chasing sonic perfection. ## Features - First Full Android Flagship with Bit-Perfect Playback - The first Astell&Kern player with native Android + Google Play support—no sideloading needed. Yet it maintains bit-perfect audio through AK’s exclusive Audio Direct Path (ADP) system. - Quad-DAC with Octa-Circuit Architecture - A world-first in portable audio: four AK4191EQ digital processors and four AK4499EX DACs, each independently mapped, offering unmatched channel separation, ultra-low distortion, and 131 dB SNR. - Parallel Amplifier Circuit (High Driving Mode) - Eight op-amps in a parallel configuration allow the SP4000 to unleash more current, driving high-impedance headphones or power-hungry IEMs with greater authority, stability, and headroom. - Enhanced Signal Alignment (ESA) - Proprietary ESA technology synchronises timing across all frequency bands, eliminating group delay and delivering an incredibly cohesive, phase-correct soundstage. - Advanced DAR + VSE Audio Remastering - The Digital Audio Remaster (DAR) engine, now paired with Virtual Sound Extension (VSE), upscales and restores lost spatial harmonics for analog-like musicality, especially with older or compressed recordings. - Ultra-Low Noise Power Architecture - Featuring a low-noise LDO power regulator, developed for 5G and medical applications, it eliminates up to 97% of power-induced interference, ensuring an ultra-black background. - Reference-Class Analogue Shielding - A 99.9% pure copper shield can encases the audio circuit to block EMI/RFI. Combined with Any-Layer HDI PCB design, this provides reference-grade noise isolation and signal purity. - Ultra-Luxury Materials & Finishing - Machined from 904L stainless steel—used in Rolex watches—for exceptional durability and corrosion resistance. Comes with a Perlinger leather case and PVD ceramic back for wireless efficiency and heat dissipation. - Gorgeous 6” 2K Display + LP-Inspired UI - A bold, ultra-bright 6” 2K LCD with a reworked UI featuring vinyl-inspired animations, multi-function side switch (including hold), and a redesigned volume wheel for tactile control. - 10. Dual-Band Wi-Fi, LDAC, and Roon Ready - Streaming is fluid and audiophile-grade with dual-band Wi-Fi, LDAC/aptX HD Bluetooth, Roon Ready certification, and full app access via Android—making this a true all-in-one high-end audio source. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FHW7NQCH | | Best Sellers Rank | 17,516 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 132 in MP3 & Digital Audio Players | | Box Contents | Astell&Kern SP4000 High Resolution Audio Player, Premium Shrunken Calfskin Leather Case, Quick Start Guide, Screen Protectors, USB-C to USB-C cable (1 metre) | | Brand | Astell&Kern | | Brand Name | Astell&Kern | | Colour | Black | | Compatible Devices | Headphone, Earphone, Hi-Fi System, Computer, MAC, Laptop, PC | | Connectivity Technology | Aux, Bluetooth, Optical, USB, Wi-Fi | | Connectivity technology | Aux , Bluetooth, Optical, USB, Wi-Fi | | Country of Origin | United Kingdom | | Customer Reviews | 5.0 out of 5 stars 3 Reviews | | Display Technology | LCD | | Item Dimensions D x W x H | 2D x 8.5W x 15H centimetres | | Manufacturer | Astell&Kern | | Manufacturer Part Number | AKP07 | | Media Types | Internal Storage, Micro SD, Micro SDHC, Micro SDXC | | Memory Storage Capacity | 256 GB | | Memory storage capacity | 256 GB | | Model Name | A&ultima SP4000 | | Model Number | A&ultima SP4000 | | Model name | A&ultima SP4000 | | Product Features | High-Res Audio Support, Bluetooth Connectivity, Wi-Fi Streaming, Quad-DAC, Advanced Audio Processing | | Product Warranty | 1 Year | | Screen Size | 6 Inches | | Supported Standards | WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA | ## Product Details - **Brand:** Astell&Kern - **Colour:** Black - **Compatible devices:** Headphone, Earphone, Hi-Fi System, Computer, MAC, Laptop, PC - **Connectivity technology:** Aux, Bluetooth, Optical, USB, Wi-Fi - **Media type:** Internal Storage, Micro SD, Micro SDHC, Micro SDXC - **Memory storage capacity:** 256 GB - **Model name:** A&ultima SP4000 - **Screen size:** 6 Inches - **Special feature:** High-Res Audio Support, Bluetooth Connectivity, Wi-Fi Streaming, Quad-DAC, Advanced Audio Processing ## Images ![SP4000 High Resolution Digital Audio Player (Black) - Image 1](https://m.media-amazon.com/images/I/617xdJUosnL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The Very Best,(in musical terms), way of reproducing music 👍 *by V***Y on 3 April 2026* The Closest you can get, to the true natural way our ears + brain receptors Hear Harmony/Melody & tone colouration, = MUSIC :-) ### ⭐⭐⭐⭐⭐ Astell & Kern SP4000: Redefining Audiophile Excellence *by E***N on 29 September 2025* ### SP4000: A Stunning Audiophile Upgrade That Redefines Excellence **5.0 out of 5 stars** As a dedicated audiophile, I thought my setup with the Hegel H590 integrated amplifier and Rose RS130 network player/streamer was close to perfection. Then I replaced the RS130 with the SP4000, and it’s left me questioning whether even my Hegel H590 is worthy of this extraordinary component. Hands down, the SP4000 is the finest audiophile product I’ve ever experienced. The SP4000’s build quality is exceptional—sleek, robust, and meticulously crafted, it exudes high-end engineering that perfectly complements my setup. Integration was seamless, taking over the RS130’s role with effortless precision. Sonically, the SP4000 is a revelation. It delivers a soundstage so expansive and precise it feels almost three-dimensional. Instruments are rendered with breathtaking clarity, vocals carry an intimate, lifelike texture, and the bass is deep yet controlled, never overshadowing the pristine mids or sparkling highs. It unveils details in my music I didn’t know existed, all while maintaining a smooth, fatigue-free listening experience. The SP4000’s refinement is on par with—or arguably surpasses—the Hegel H590, making me wonder if my amp is fully up to the task of showcasing this component’s brilliance. If you’re an audiophile with a high-end system, the SP4000 isn’t just an upgrade—it’s a game-changer. It’s replaced my RS130 and elevated my setup to new heights. Pro tip: Allow 50-100 hours of burn-in to unlock its full potential. Worth every penny for those chasing sonic perfection. ### ⭐⭐⭐⭐⭐ Great Player *by J***J on 10 September 2025* I have just bought and tried the SP4000, it is terrific player, which stands out against some of its rivals as being probably the best. My specific comments are as follows: 1. A&K Support - The support from A&K has been magnificent, I can’t praise them enough for their help and support truly exemplary! 2.Presentation - the player comes in a very high quality box with a clasp, and all the necessary accessories including a leather cover, leather folio for earphones, etc, and screen protectors, quick start guide and much more support. 3.Soundstage & Sound - excellent soundstage, you feel as if you are in front of the music playing a 360 experience, trebles are noticeable and the lower more bass sounds are clear and supportive. 4.Operating System - with the introduction of Android, the OS is much more receptive to apps being used, note I have not tried Netflix or other Mainstream TV/Film apps, all in all a much better experience than the SP3000. 5.Build - the build quality is superb, stainless steel polished, and you can feel from its weight a well engineered player, with volume control tactile and responsive. 6.Comparison - The player is a step up from the SP3000, and whilst heavier it’s a great bit of kit! 7.Improvements - suggested minor improvements are a) include screen wipe and cloth for the screen protectors, b) when the screen protector leather cover are fitted bring down the quick menu can be hit and miss but this is something that is a refinement. 8.Overall - Definitely a 5 star product and good buy for audiophiles whilst being on the upper end of the market, great quality and would recommend. Hope this helps Since writing this A&K have updated the software, and it is now possible to swipe down for the shortcut menu with case and screen protector on, from the top. Thanks A&K…. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/754478537-sp4000-high-resolution-digital-audio-player-black](https://www.desertcart.co.uk/products/754478537-sp4000-high-resolution-digital-audio-player-black) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-14*