Astell&Kern Kann Ultra

Model : KANN ULTRA
Body Color : Astro Gray
Body Material : Aluminum
Display : 5.5inch HD 1080 x 1920 touch screen
Supported Audio Formats : WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
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 - HEADPHONE OUT
[Low Gain] Unbalanced 2Vrms │ Balanced 4Vrms (Condition No Load)
[Mid Gain]Unbalanced 4Vrms │ Balanced 8Vrms (Condition No Load)
[High Gain]Unbalanced 6Vrms │ Balanced 12Vrms (Condition No Load)
[Super Gain]Unbalanced 8Vrms │ Balanced 16Vrms (Condition No Load)
- PRE · LINE OUT
Unbalanced 2Vrms │ Balanced 4Vrms (Condition No Load)
CPU Octa-core
DAC ES9039MPRO x2
Decoding Support up to 32bit/768kHz Bit-to-Bit Playback
Input USB Type-C input (for charging & PC & MAC)
Outputs - HEADPHONE OUT
3.5mm(Unbalanced Out, Optical Out), 4.4mm (Balanced Out, only 5-pole supported)
- PRE · LINE OUT
3.5mm(Unbalanced Out), 4.4mm (Balanced Out, only 5-pole supported)
Wi-Fi : 802.11 a/b/g/n/ac (2.4/5GHz)
Bluetooth : V4.2 (A2DP, AVRCP, Qualcomm® aptX™-HD, LDAC, LHDC)
Dimensions : 3.24” (82.4mm)[W] x 5.55” (141.1mm)[H] x 0.96” (24.4mm)[D]
Weight : About 13.75oz (390g)
Feature Enhancements Firmware upgrade supported (OTA)
Operating Temperature : 0℃ ~ + 40℃ (32℉~ 104℉)
 

Frequency Response "HEADPHONE OUT
±0.006dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.004dB (Condition : 20Hz~20kHz) Balanced
±0.016dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.020dB (Condition : 20Hz~70kHz) Balanced
PRE OUT
±0.022dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.023dB (Condition : 20Hz~20kHz) Balanced
±0.023dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.023dB (Condition : 20Hz~70kHz) Balanced
LINE OUT
±0.002dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.002dB (Condition : 20Hz~20kHz) Balanced
±0.007dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.006dB (Condition : 20Hz~70kHz) Balanced"
S/N HEADPHONE OUT
115dB @ 1kHz, Unbalanced │ 119dB @ 1kHz, Balanced
PRE OUT
110dB @ 1kHz, Unbalanced │ 126dB @ 1kHz, Balanced
LINE OUT
110dB @ 1kHz, Unbalanced │ 125dB @ 1kHz, Balanced
Crosstalk HEADPHONE OUT
134dB @ 1kHz, Unbalanced │ 140dB @ 1kHz, Balanced
PRE OUT
128dB @ 1kHz, Unbalanced │ 128dB @ 1kHz, Balanced
LINE OUT
129dB @ 1kHz, Unbalanced │ 121dB @ 1kHz, Balanced
THD+N HEADPHONE OUT
0.0004% @ 1kHz, Unbalanced │ 0.0004% @ 1kHz, Balanced
PRE OUT
0.0012% @ 1kHz, Unbalanced │ 0.0005% @ 1kHz, Balanced
LINE OUT
0.0013% @ 1kHz, Unbalanced │ 0.0005% @ 1kHz, Balanced
IMD SMPTE HEADPHONE OUT
0.0006% 800Hz 10kHz (4:1) Unbalanced │0.0006% 800Hz 10kHz (4:1) Balanced
PRE OUT
0.0006% 800Hz 10kHz (4:1) Unbalanced │0.0006% 800Hz 10kHz (4:1) Balanced
LINE OUT
0.0006% 800Hz 10kHz (4:1) Unbalanced │0.0006% 800Hz 10kHz (4:1) Balanced
Output Impedance HEADPHONE OUT
Unbalanced Out 3.5mm (1ohm) │ Balanced Out 4.4mm (1.3ohm)
PRE OUT
Unbalanced Out 3.5mm (3.5ohm) │ Balanced Out 4.4mm (5.7ohm)
LINE OUT
Unbalanced Out 3.5mm (6.5ohm) │ Balanced Out 4.4mm (10.7ohm)