Astell & Kern HB1 ESS ES9281AC PRO Portable DAC Amplifier
Astell & Kern HB1 ESS ES9281AC PRO Portable DAC & Headphone Amplifier
General Specifications
Model AK HB1
Body Color Shadow Black
Body Material Polycarbonate (Body) / Aluminum (Volume Wheel)
Bluetooth Chipset : Qualcomm CSR8675
Version : 5.0
Codec : LDAC, aptX™HD, aptX™, AAC, SBC
Profile : A2DP, AVRCP, HFP
DAC ESS ES9281AC PRO
Sample rate PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load)
Input USB Type-C (Supports UAC 1.0 and UAC 2.0)
Output 3.5mm (Supports CTIA standard 4-pole earphones/headphones), 4.4mm (Only 5-pole supported)
Dimensions 33 x 68.4 x 16.5mm (Excluding volume wheel)
39.8 x 68.4 x 16.5mm (Including volume wheel)
Weight About 1.41oz (40g)
Feature Enhancements Firmware upgrade supported
Audio Specifications
Frequency Response ±0.135dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.136dB (Condition : 20Hz~20kHz) Balanced
S/N 117dB @ 1kHz, Unbalanced │ 118dB @ 1kHz, Balanced
Crosstalk -112dB @ 1kHz, Unbalanced │ -112dB @ 1kHz, Balanced
THD+N 0.0005% @ 1kHz, Unbalanced │ 0.0005% @ 1kHz, Balanced
IMD SMPTE 0.0003% 800Hz 10kHz (4:1) Unbalanced │ 0.0003% 800Hz 10kHz (4:1) Balanced
Output Impedance Unbalanced Out 3.5mm (2.5ohm) │ Balanced Out 4.4mm (2ohm)
Battery
Capacity 600mAh 3.8V Li-Polymer
Charge Time about 1.5hours
Playback Time about 6hours (Standard : AAC)
Garansi Resmi 1 Tahun
Beyond The Music contact :
0813.7000.9002 / 0813.7000.6807