Máy nghe nhạc Astell&Kern SP4000T

• Model: SP4000T (PPF52)
• Body Color: Silver, Copper
• Body Material: Stainless Steel, Copper
• Display: 6inch 2K (2160 x 1080) touch screen
• Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
• Sample rate

PCM : 8kHz ~ 768kHz (8/16/24/32bits per Sample)
DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo
DSD256(1bit 11.2MHz), Stereo / DSD512(1bit 22.4MHz), Stereo

• Output Level: Unbalanced 4.2Vrms │ Balanced 8Vrms (Condition No Load)
• CPU: OCTA-Core
• DAC: AKM4191EQ x2 + AKM4499EX x2
• Vacuum Tube: RAYTHEON JAN6418 x4 (Quad Tube)
• Decoding: Support up to 32bit / 768kHz Bit to Bit playback
• Input: USB Type-C input (for charging & PC & MAC)
• Outputs

Unbalanced Out (3.5mm), Optical Out(3.5mm)
Balanced Out (4.4m, only 5-pole supported)

• Wi-Fi: 802.11 a/b/g/n/ac/ax (2.4/5GHz)
• Bluetooth: V5.2 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC, LHDC, SBC, AAC)
• Dimensions: 3.37” (85.7mm)[W] x 5.9” (150mm)[H] x 0.76” (19.5mm)[D]
• Weight: About 19.9oz(565g)

Audio Specifications

• 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: 124dB @ 1kHz, Unbalanced │ 125dB @ 1kHz, Balanced
• Crosstalk: -136dB @ 1kHz, Unbalanced │ -145dB @ 1kHz, Balanced
• THD+N: 0.0006% @ 1kHz, Unbalanced │ 0.0004% @ 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 Source:
• Clock Jitter: 25pS (Typ)
• Reference Clock Jitter: 200 Femto Seconds

Storage Capacity

• Built-in Memory: 256GB [NAND]
• External Memory: microSD x1 (Max. 1.5TB)

Battery

• Capacity: 7,450mAh 3.8V Li-Polymer
• Charge Time: about 5hours (PD3.0 Charging)
• Playback Time: about 10hours (Standard : FLAC, 16bit, 44.1kHz, Vol.80, LCD Off, Low Gain)