Astell&Kern AK70 連原裝皮套
朋友送, 購自日本, 只開過黎試聽, 幾乎全新

General Specifications

Model AK70
Body Color Misty Mint
Body Material Aluminum
Display 3.3inch WVGA (480 x 800) TFT LCD
Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
Sample Rate FLAC, WAV, ALAC, AIFF : 8kHz ~ 192kHz (8/16/24bits per Sample), DSD : DSD64, Stereo / DSD128, Stereo
Output Level
Unbalance 2.3Vrms / Balance 2.3Vrms (Condition No Load)
DAC Cirrus Logic CS4398 x1 (Single DAC)
Decoding Support up to 24bit / 192kHz Bit to Bit Decoding
Input USB Micro-B input (for charging & data transfer (PC & MAC)) / Connection Mode : MTP (Media Device)
Outputs PHONES (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Wi-Fi 802.11 b/g/n (2.4GHz)
Bluetooth V4.0 (A2DP, AVRCP, aptX)
Dimensions 2.37 ”(60.3 mm) [W] x 3.81 ”(96.8 mm) [H] x 0.51 ”(13 mm) [D]
Weight 4.66 oz (132 g)
Feature Enhancements Firmware upgrades supported (OTA)

Audio Performance

Frequency Response ±0.075dB (Condition: 20Hz~20kHz) Unbalance & Balance ±0.56dB (Condition: 10Hz~70kHz) Unbalance / ±0.55dB (Condition: 10Hz~70kHz) Balance
Signal to Noise Ratio 116dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance
Body Material Aluminum
Crosstalk 130dB @ 1kHz, Unbalance / 130dB @ 1kHz, Balance
Supported Audio Formats WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
THD+N 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
IMD SMPTE
Unbalance 2.3Vrms / Balance 2.3Vrms (Condition No Load)
Output Impedance Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)