Home / Products / X1 2nd gen
Model/Number X1(X1 2nd gen) X1 X3(X3 2nd gen) X5(X5 2nd gen)
General Specifications
Color Sliver/Black/Rose gold/Red (limited edition) Silver/Gold/Black/Blue Titanium/Black/Gold Titanium/Black/Gold
Dimensions 97mm×55.5 mm×12 mm 96.7 mm×57.7 mm×14.1 mm 96.7 mm×57.7 mm×16.1 mm 109 mm× 63.5 mm× 15.3 mm
Weight 102 g 106 g 135 g 165 g
Display Screen TFT 320×240 TFT 320×240 2.0" TFT screen, 320x240 pixels 2.4", 262,144 color HD IPS screen with 400x360 pixels
Line Out Standard 3.5mm headphone Port Standard 3.5mm headphone Port Standard 3.5mm Port (Shared line out/S/PDIF coaxial out) Standard 3.5mm Port (Shared line out /S/PDIF coaxial out)
Digital Out (Coaxial) N/A N/A Standard 3.5mm Port (Shared line out / S/PDIF coaxial out) Standard 3.5mm Port (Shared line out / S/PDIF coaxial out)
USB DAC N/A N/A Supporting up to 192kHz/24 bit and DSD (driver installation required) Supporting up to 192kHz/24 bit and DSD (driver installation required)
Headphone Port Standard 3.5mm Headphone Port Standard 3.5mm Headphone Port Standard 3.5mm headphone Port Standard 3.5mm headphone Port
Drive Ability 16~100 Ω 16~100 Ω 16~150 Ω 16~150 Ω
Volume Control 100 steps digital potentiometer 100 steps digital potentiometer 120 steps digital potentiometer 120 steps digital potentiometer
Treble N/A N/A N/A N/A
Bass N/A N/A N/A N/A
Equalizer 7-band equalizer (±6dB) 7-band equalizer (±6dB) 10-band equalizer (±6dB) 10-band equalizer (±6dB)
Balance 5 dB 5 dB  5 dB 10 dB  
Gain N/A N/A 2.6dB(GAIN=L)
8.6dB(GAIN=H)
3.6dB(Gain=L)
9.1dB(Gain=H)
Internal Memory N/A N/A N/A N/A
Expansion Memory (Maximum) 256 GB 200 GB 200 GB 400 GB (200 GB×2)
Chips used

SoC: JZ4760B

DAC: PCM5242

LPF: OPA2322

OP: ISL28291

SoC: JZ4760BS

DAC: PCM5142

LPF: OPA2322

OP: ISL28291

SoC: JZ4760B

DAC: CS4398

LPF: OPA1642

OP: OPA1612+LMH6643

SoC: JZ4760B

DAC: PCM1792A

LPF: OPA1612

OP: OPA1612+BUF634

Partial Performance Parameters for Line Output
THD+N ≤ 0.003% (1 kHz) < 0.003% (1 kHz) <0.001% (1 kHz) <0.001%(1 kHz)
Frequency Response 5 Hz~60 kHz (-3dB) 10 Hz~45 kHz(-3dB) 10 Hz~55 kHz (-3dB) 10 Hz~65 kHz (-3dB)
Crosstalk ≥ 101 dB (10 KΩ/1 kHz) >100dB (10 KΩ/1 kHz) >102 dB (10 KΩ/1 kHz) >115 dB (10 KΩ/1 kHz)
SNR ≥115 dB  (A-weighted) >110 dB (A-weighted) ≥114 dB (A-weighted) ≥114 dB (A-weighted)
Dynamic Range ≥107 dB >104 dB >110 dB >110 dB
Line Output Level 1.7 Vrms (10 KΩ/1 kHz) 1.5 Vrms (10 KΩ/1 kHz) 1.45 Vrms (10 KΩ/1 kHz) 1.53 Vrms (10 KΩ/1 kHz)
Partial Performance Parameters for Headphone Output
Output Power 1 >100 mW (16 Ω/THD+N<1%) >100 mW (16 Ω/THD+N<1%) >224 mW (16 Ω/THD+N<1%) >436 mW
(16Ω/THD+N<1%)
Output Power 2

≥ 70 mW (32 Ω/THD+N<1%)

>65 mW (32 Ω/THD+N<1%) >200 mW (32 Ω/THD+N<1%) >245 mW(32Ω/THD+N<1%)
Output Power 3

≥ 8 mW (300 Ω/THD+N<1%)

>8 mW (300 Ω/THD+N<1%) >24 mW (300 Ω/THD+N<1%)

>27 mW

(300Ω/THD+N<1%)

Frequency Response 5 Hz~60 kHz (-3dB) 10 Hz~45 kHz(-3dB) 10 Hz~55 kHz (-3dB) 10 Hz~65 kHz (-3dB)
SNR ≥113 dB (A-weighted) ≥110 dB ( A-weighted) ≥113 dB ( A-weighted) ≥117 dB (A-weighted)
Output Impedance <1Ω (32Ω loaded) <0.2 Ω (32Ω loaded) <0.2 Ω (32Ω loaded) <0.2 Ω (32Ω loaded)
Crosstalk ≥72 dB (1 kHz) >70 dB (1 kHz) >74 dB (1 kHz) >75 dB (1 kHz)
THD+N <0.003% (1 kHz) <0.003% (1 kHz) <0.001% (1 kHz) <0.001% (1 kHz)
Max. Output Voltage >4.0 Vp-p >4.2 Vp-p 7.2 Vp-p >8.2 Vp-p
Max. Output Current >130 mA(For reference) >130 mA (For reference) >75 mA (For reference) >250 mA (For reference)
Power and Battery
Power DC5V 2A recommended DC5V 1A recommended DC5V 2A recommended DC5V 2A recommended
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 Red light indicates , green light turns on after fully charged
Battery Display Yes Yes Yes Yes
Battery Capacity 1800 mAh 1700 mAh 2600 mAh 3300 mAh
Battery Life >12 h  (27Ω open earbuds; volume 39; display off; EQ off; MP3 44.1kHz/16bit ) >12 h  (27Ω open earbuds; volume 39; display off; EQ off; MP3 44.1kHz/16bit ) >11 h  (27Ω open earbuds; volume 58; display off; EQ off; Gain=L; MP3 44.1kHz/16bit ) ≥ 10 h (27Ω open earbuds; volume 56; display off; EQ off; Gain=L;MP3 44.1kHz/16bit )
Charging Time <3 h (DC5V 2A) <4 h (DC5V 2A recommended) <3 h (DC5V 2A recommended) <4 h (DC5V 2A)
Audio Formats Supported
Lossless:

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/32 bit;
Aiff:192 kHz/32 bit;
Aif:192 kHz/24 bit;
WMA Lossless: 48 kHz/24 bit (to be supported by future update);
Apple Lossless: 192 kHz/24 bit;

APE (Fast): 192 kHz/24 bit;
APE (Normal): 96 kHz/24 bit;
APE (High): 96 kHz/24 bit;

AIFF:192 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;

DSD: DSD64, DSD128 (.iso&.dsf & .dff);
APE(Fast): 192 kHz/24 bit;
APE(Normal): 96 kHz/24 bit;
APE (High): 96 kHz/24 bit;

AIFF:192 kHz/24 bit;
FLAC: 192 kHz/24 bit;
WAV: 192 kHz/64 bit;
WMA Lossless: 96 kHz/24 bit;
Apple Lossless: 192 kHz/24 bit;

DSD: DSD64, DSD128 (.iso&.dsf & .dff);

APE (Fast): 192 kHz/24 bit;
APE (Normal): 96 kHz/24 bit;
APE (High): 96 kHz/24 bit;

AIFF: 192 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;

Lossy Compression: MP3、WMA、OGG... MP3、WMA、OGG... MP3、WMA、OGG... MP3、WMA、OGG...
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