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Astell&Kern A&ultima SP4000 Flagship Digital Audio Player

Astell&Kern A&ultima SP4000 Flagship Digital Audio Player

Name: Astell&Kern A&ultima SP4000 Flagship Digital Audio Player
Brand: Astell&Kern
SKU: 3PPF5100-CMBL01
Price: 4290.00 USD
Availability: InStock
Rating: 5.0 (2 reviews)

$4,290.00

Back in stock soon, order now!

Built on three years of relentless innovation since the SP3000, the Astell&Kern A&ultima SP4000 pushes the boundaries of portable audio with cutting-edge technology and refined sound performance.

Authorized Retailer

Free 1 or 2 Day

30-Day Returns

Ships in
North America

KEY FEATURES

-Enhanced Signal Processing with Octa-Audio Circuitry Design
-High Driving Mode Delivers Premium Sound Quality
-Proprietary Enhanced Signal Alignment (ESA) Technology Minimizes Group Delay
-Ultra Low Noise LDO Regulator for Top-Tier Noise Suppression
-Advanced Digital Audio Remaster (DAR) Technology
-Full Android OS Support
-New 4.5 Generation User Interface

What's In the Box

• A&ultima SP4000

• Premium German Leather Case

• USB-C cable

• Quick start guide

• microSD card slot cover

Features

•Stainless Steel 904L Body
6" 2K (2160x1080) Touch Screen
Octa-Core CPU
AKM4191 x4 + AKM4499EX x4 DAC Chipset (Real Quad DAC)
256GB Built-In Memory
MicroSD x1 (Max. 1.5TB)
USB Type-C Input
Unbalanced 3.5mm Out, Optical 3.5mm Out, Balanced 4.4mm (only 5-pole supported) Out
Firmware Upgrade Supported
4hrs Charge Time
10hrs Playback Time
Windows 10,11(32/64bit) MAC OX X 10.7 Supported

Specs

• Frequency Response: ±0.006dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.006dB (Condition : 20Hz~20kHz) Balanced ±0.06dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.06dB (Condition : 20Hz~70kHz) Balanced
-S/N: 129dB @ 1kHz, Unbalanced │ 131dB @ 1kHz, Balanced
-THD+N: 0.0005% @ 1kHz, Unbalanced │ 0.0003% @ 1kHz, Balanced
-Crosstalk: -136dB @ 1kHz, Unbalanced │ -145dB @ 1kHz, Balanced
-IMD SMPTE: 0.0004% 800Hz 10kHz (4:1) Unbalanced │Balanced
-Output Impedance: Unbalanced Out 3.5mm (0.7ohm) │ Balanced Out 4.4mm(1.7ohm)
-Clock Jitter: 25pS (Typ), Reference: 200 Femto Seconds
-Battery Capacity: 6,780mAh 3.8V Li-Polymer

SP4000

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About Astell&Kern

Astell&Kern is the group responsible for some of the world's best portable music players. The latest models include a full slate of features such as Bluetooth and Wi-Fi playback with Roon, Spotify, Tidal, and Qobuz.