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X3

Model/Number	X5	X3	X1
General Specifications
Color Available	Black	Black	Silver and gold
Dimensions	114 mm×67.6 mm×15.6 mm	109 mm×55 mm×16 mm	96.7 mm×57.7 mm×14.1 mm
Weight	195 g	122 g	106 g
Display Screen	TFT 400×360	TFT 240×320	TFT 320×240
Analog Audio Output Jack	3.5 mm headphone output jack	3.5 mm headphone output jack	3.5 mm headphone output jack
Digital Audio Output Jack	3.5 mm headphone output jack	3.5 mm headphone output jack	/
USB DAC	Supports up to 192 kHz/24 bit	Supports up to 192 kHz/24 bit	/
Phone Out（PO)	3.5 mm headphone output jack	3.5 mm Headphone Output Jack	3.5 mm headphone output jack
Headphone Impedance Range	16~300 Ω	16~300 Ω	16~100 Ω
Volume Control Type	120 levels digital volume control mode	120 levels digital volume control mode	100 levels digital volume control mode
Bass Boost	10 bands graphic EQ	-10 dB~+10 dB	7 bands graphic EQ
Treble	10 bands graphic EQ	-10 dB~+10 dB	7 bands graphic EQ
Balance	5 dB	5 dB	5 dB
Gain Selection	3.7 dB (GAIN=L) 9.2 dB (GAIN=H)	3.5 dB (GAIN=L) 9.5 dB (GAIN=H)	/
Build-in Memory	/	8 GB	/
External Memory (Max.)	256 GB (128 GB×2)	128 GB×1	128 GB×1
Partial Performance Parameters for Line Output
THD+N	＜0.0025% (1 kHz)	＜0.005% (1 kHz)	＜0.003% (1 kHz)
Frequency Response	20 Hz~20 kHz	20Hz~20 kHz	20 Hz~20 kHz
Crosstalk	＞100 dB (10 kΩ/1 kHz)	＞90 dB (10 kΩ/1 kHz)	＞100 dB (10 kΩ/1 kHz)
SNR	＞115 dB (A-Weight)	＞108 dB (A-Weight)	＞110 dB (A-Weight)
Dynamic Range	＞115 dB	＞103 dB	≥ 110 dB
Line Output Level	1.5 Vrms	1.5 Vrms	1.5 Vrms
Partial Performance Parameters for Headphone Output
Output Power 1	＞460 mW (16 Ω/THD+N＜1%)	＞540 mW (16 Ω/THD+N＜1%)	＞100 mW (16 Ω/THD+N＜1%)
Output Power 2	＞255 mW (32 Ω/THD+N＜1%)	＞270 mW (32 Ω/THD+N＜1%)	＞65 mW (32 Ω/THD+N＜1%)
Output Power 3	＞28 mW (300 Ω/THD+N＜1%)	＞30 mW (300 Ω/THD+N＜1%)	＞8 mW (300 Ω/THD+N＜1%)
Frequency Response	20 Hz~20 kHz	20 Hz~20 kHz	20 Hz~20 kHz
SNR	＞115 dB (A-Weight)	＞105 dB (A-Weight)	≥110 dB (A-Weight)
Output Impedance	＜0.26 Ω	＜0.3 Ω	＜2 Ω
Crosstalk	＞75 dB (1 kHz)	＞75 dB (1 kHz)	＞70 dB (1 kHz)
THD+N	＜0.003% (1 kHz)	＜0.005% (1 kHz)	＜0.003% (1 kHz)
MAX Output Voltage	＞8 Vp-p	＞8 Vp-p	＞4.2 Vp-p
MAX Output Current	＞150 mA（For reference）	＞250 mA（For reference）	＞130 mA（For reference）
Power and Battery
Power	Recommend DC5V 2A	Recommend DC5V 2A	Recommend DC5V 1A
Charge Display	Red light indicates , green light turns on after fully charged	Red light indicates , green light turns on after fully charged	Red light indicates , green light turns on after fully charged
Battery Display	Yes	Yes	Yes
Battery Capacity	3700 mAh	3100 mAh	1700 mAh
Battery Life	＞10 h	＞10 h	＞10 h
Charging Time	＜4 h (recommend DC5V 2A)	＜4 h (recommend DC5V 2A)	＜4 h (recommend DC5V 1A)
Audio Format Supported
Lossless：	DSD: 2.8 MHz/1 bit (dff/dsf); APE (Fast): 192 kHz/24 bit; APE (Normal): 96 kHz/24 bit; APE (High): 96 kHz/24 bit; FLAC: 192 kHz/24 bit; WAV: 192 kHz/64 bit; WMA9.1 LOSSLESS: 96 kHz/24 bit; Apple Lossless: 192 kHz/24 bit;	DSD: 2.8 MHz/1 bit (dff/dsf); APE (Fast): 192 kHz/24 bit; APE (Normal): 96 kHz/24 bit; APE (High): 96 kHz/24 bit; FLAC: 192 kHz/24 bit; WAV: 192 kHz/64 bit; WMA9.1 LOSSLESS: 96 kHz/24 bit; Apple Lossless: 192 kHz/24 bit;	APE (Fast): 192 kHz/24 bit; APE (Normal): 96 kHz/24 bit; APE (High):96 kHz/24 bit; FLAC:192 kHz/24 bit; WAV: 192 kHz/64 bit; WMA 9.1 LOSSLESS: 48 kHz/24 bit; Apple Lossless: 192 kHz/24 bit;
Lossy compression：	MP2、MP3、AAC、ALAC、WMA、OGG....	MP2、MP3、AAC、ALAC、WMA、OGG....	MP2、MP3、AAC、ALAC、WMA、OGG....