Το Astell&Kern Ultima SP4000 ειναι ενα φορητο player (DAP), με 32bit/768kHz dsd dac, με δεκτη WiFi και Bluetooth V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC, LHDC, SBC, AAC) . Αναπαραγει αρχεια WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF και DSF.

Εγγυηση Αντιπροσωπειας. Δυνατοτητα δοσεων.

The SP4000 stands at the pinnacle of Astell&Kern’s flagship A&ultima line—a DAP that embodies the peak of performance and design. Like the The force of light that pierces through the darkness, the rotating volume wheel generates energy that is visualized as shards breaking through a solid wall. This imagery is captured through sharp edges, restrained detailing, and geometric structures, expressing both explosive force and concentrated power. The interplay of contrasting surfaces and multidimensional forms goes beyond aesthetics, serving as a visual representation of the SP4000’s high-performance audio capabilities. Even the angle of the volume wheel's patterns has been meticulously crafted to deliver subtle tactile resistance, offering a sensory experience that connects users to the sound itself. It's not just about control—it’s an intuitive, emotional interaction with music.

The choice of materials in the SP4000 perfectly embodies both technology and emotion. The front features high-gloss polished 904L stainless steel, while the rear is finished with PVD-coated ceramic, offering exceptional craftsmanship in both form and function.

The SP4000 is more than just a digital audio player—it is a work of art where technology, design, intuition, and performance converge, expressing a pure passion for the ultimate sound experience.

Specifications

• Model: SP4000 (PPF51)
• Body Colors: Black / Silver / Copper
• Body Material: Stainless Steel 904L
• Display: 6" 2160 x 1080 touch screen
• Supported Audio Formats: WAV / FLAC / WMA / MP3 / OGG / APE / AAC / ALAC / AIFF / DFF / DSF
• Sample Rate:
  • PCM: 8kHz–768kHz (8/16/24/32-bit per sample)
  • DSD Native: DSD64 (1-bit / 2.8MHz), Stereo
  • DSD Native: DSD128 (1-bit / 5.6MHz), Stereo
  • DSD Native: DSD256 (1-bit / 11.2MHz), Stereo
  • DSD Native: DSD512 (1-bit / 22.4MHz), Stereo
• Output Level:
  • Unbalanced: 4.1Vrms (No Load)
  • Balanced: 8.2Vrms (No Load)
• CPU: Octa-core
• DAC: 4 x AK4191EQ + 4 x AK4499EX (Real Quad DAC)
• Decoding: Up to 32-bit / 768kHz bit-to-bit playback
• Input: USB Type-C for charging / PC / Mac
• Outputs:
  • Unbalanced Output: 3.5 mm
  • Optical Output: 3.5 mm
  • Balanced Output: 4.4 mm, only 5-pole supported
• AK Cradle Compatibility: Supported
• Wi-Fi: IEEE 802.11 a/b/g/n/ac, 2.4GHz / 5GHz
• Bluetooth: V5.0 (A2DP / AVRCP / Qualcomm aptX HD / LDAC / LHDC / SBC / AAC)
• Firmware Upgrade: OTA supported
• Operating Temperature: 0–40°C
• Audio Performance:
  • Frequency Response:
    • Unbalanced: ±0.006dB, 20Hz–20kHz
    • Balanced: ±0.006dB, 20Hz–20kHz
    • Unbalanced: ±0.06dB, 20Hz–70kHz
    • Balanced: ±0.06dB, 20Hz–70kHz
  • S/N:
    • Unbalanced: 129dB @ 1kHz
    • Balanced: 131dB @ 1kHz
  • Crosstalk:
    • Unbalanced: -136dB @ 1kHz
    • Balanced: -145dB @ 1kHz
  • THD+N:
    • Unbalanced: 0.0005% @ 1kHz
    • Balanced: 0.0003% @ 1kHz
  • IMD SMPTE: 0.0004%, 800Hz / 10kHz (4:1), Unbalanced / Balanced
  • Output Impedance:
    • Unbalanced 3.5 mm: 0.7Ω
    • Balanced 4.4 mm: 1.7Ω
  • Audio Measurements: Based on Normal mode
  • Auto Mute: Not used during audio testing
• Clock Source:
  • Clock Jitter: 25ps (typ.)
  • Reference Clock Jitter: 200 femtoseconds
• Storage:
  • Built-in Memory: 256GB NAND
  • External Memory: 1 x microSD, up to 1.5TB
• Battery:
  • Capacity: 6,780mAh / 3.8V Li-Polymer
  • Charge Time: Approximately 5 hours (QC3.0 charging)
  • Playback Time: Approximately 10 hours (FLAC, 16-bit / 44.1kHz, Volume 50, LCD Off)
• Supported OS: Windows 10 / 11 (32/64-bit) / Mac OS X 10.7
• Dimensions (W x H x D): 85 x 149.8 x 19.5 mm
• Weight:
  • Black / Silver: Approximately 615g
  • Copper: Approximately 642g