| General Specifications |
| Name/Model |
Q15 |
Hardware solution |
DAC: AK4191EQ+AK4499EX
USB: XMOS XU316
Bluetooth decoding: QCC5125
|
| Color |
Black/ Titanium |
Volume control |
Volume knob |
| Weight |
About 305g |
Dimensions |
About 143.5x71.75x21.75mm |
| MQA |
Supports MQA Full Decoder |
Driver-free mode (switch mode) |
Supported |
| Gain |
Ultra High (In Desktop mode, Power in port connected with QC power) /Super High/High/Medium/Low gain mode |
Display |
1.30-inch TFT (240*240) bezel-less display |
| FiiO Control |
Supports settings through app |
Status display |
On the display: Bluetooth codec, sampling rate, charging status, battery level, volume level, input source, gain level, power mode |
| Sampling rate display |
Cyan: 44.1kHz/48kHz
Yellow: 88.2/96/176/352.8/384/705.6/768kHz
Green: DSD64/128/256/512
Purple: MQA |
Bluetooth codec display |
Blue: SBC
Cyan: AAC
Purple: aptX/aptX LL
Yellow: aptX HD
White: LDAC
Green: aptX Adaptive |
| Channel balance |
<0.2dB |
Bluetooth reception (5.1) |
AAC/SBC/aptX/aptX LL/
aptX Adaptive/aptX HD/LDAC
|
| Max. sampling rate |
USB DAC: Up to PCM 768kHz/32bit, native DSD512 |
Firmware upgrade |
Bluetooth firmware supports upgrade through OTA |
| Coaxial decoding: Up to PCM 192kHz/24bit, DoP DSD64 |
XMOS/system firmware supports upgrade through USB |
| Recommended impedance |
PO:8~150Ω
BAL:8~350Ω |
|
|
| Buttons and Ports |
| Buttons |
Power button*1, Play/Pause*1, Previous track*1, Next track*1, Encoder knob (with confirm button) *1 |
USB |
Type-C USB2.0*2 Black USB (charging/data transfer), orange POWER IN (charging) |
| Headphone output |
Standard 3.5mm port |
BAL headphone output |
Standard 4.4mm port |
| Line-out output |
Standard 3.5mm port (shared PO) |
BAL Line-out output |
Standard 4.4mm port (shared 4.4mm BAL headphone out) |
| Digital coaxial input |
RCA port |
Toggle switch |
PHONE MODE switch*1；DESKTOP MODE switch*1 |
| Power Supply Parameters |
| Power supply |
Supports PD fast charging and ordinary charging |
Battery capacity |
5500mAh lithium polymer battery |
| charging time |
About 3.5h (PD fast charge) |
|
|
|
| Battery life and test conditions |
|
| 3.5mm headphone out: ≥9h |
| Audio input |
USB decoding/coaxial decoding |
Gain level |
Super High Gain mode |
| Volume level |
L40 |
Playing track and format |
MP3 44.1KHz/16bit |
| Display status |
OFF |
Charging switch |
OFF |
| Load |
32 Ω |
|
|
| 4.4mm BAL headphone out: ≥8h |
| Audio input |
USB decoding/coaxial decoding |
Gain level |
BSuper High Gain mode |
| Volume level |
L 34 |
Playing track and format |
MP3 44.1KHz/16bit |
| Display status |
OFF |
Charging switch |
OFF |
| load |
32 Ω |
|
|
| 3.5mm headphone out: ≥9h |
| Audio input |
Bluetooth |
Bluetooth codec |
AAC
|
| Volume level |
L 40 |
Gain level |
Super High Gain mode |
| Display status |
OFF |
Playing track and format |
MP3 44.1KHz/16bit |
| BASS/EQ |
OFF |
Load |
32 Ω |
| 4.4mm BAL headphone out: ≥8h |
| Audio input |
Bluetooth |
Bluetooth codec |
AAC
|
| Volume level |
L 34 |
Gain level |
Super High Gain mode |
| Display status |
OFF |
Playing track and format |
MP3 44.1KHz/16bit |
| BASS/EQ |
OFF |
Load |
32 Ω |
| Audio Parameters |
| Parts of performance and parameters of headphone output (3.5mm out, USB DAC/Coaxial decoding, Ultra High Gain mode) |
| Output power |
L+R≥750mW+750mW (16Ω, THD+N＜1%) |
Output impedance |
<1Ω |
| L+R≥625mW+625mW (32Ω, THD+N＜1%) |
Crosstalk |
≥ 72dB |
| L+R≥85mW+85mW (300Ω,THD+N<1%) |
peak output voltage |
14.5Vp-p |
| SNR |
≥ 123dB (A-weighted) |
THD+N & Noise |
<0.0005%(1kHz/-9dB @ 32Ω) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
<0.0004%(1kHz/-6dB @ 300 Ω) |
| 20Hz~20kHz: damping＜0.1dB |
Noise floor |
＜3.1uV (A-weighted) |
| Parts of performance and parameters of headphone output (3.5mm out, USB DAC/Coaxial decoding, Super High Gain mode) |
| Output power |
L+R≥520mW+520mW (16Ω,THD+N<1%) |
Output impedance |
<1Ω |
| L+R≥400mW+400mW (32Ω,THD+N<1%) |
Crosstalk |
≥ 72dB |
| L+R≥55mW+55mW (300Ω,THD+N<1%) |
Peak output voltage |
11.5Vp-p |
| SNR |
≥ 121dB (A-weighted) |
THD+N & Noise |
<0.00045%(1kHz/-7dB @ 32Ω) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
<0.0004%(1kHz/-4dB @ 300 Ω) |
| 20Hz~20kHz: damping＜0.1dB |
Noise floor |
＜3uV (A-weighted) |
| Parts of performance and parameters of Line-out headphone output (3.5mm out, USB/DAC/Coaxial decoding) |
| THD+N & Noise |
<0.00042%(1kHz/-4dB @ 10KΩ) |
SNR |
≥ 123dB (A-weighted) |
| Crosstalk |
≥ 105dB |
Noise floor |
＜1.6uV (A-weighted) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
Line output level |
2Vrms |
| 20Hz~20kHz: damping＜0.1dB |
|
|
| Parts of performance and parameters of BAL headphone output (4.4mm out, USB DAC/Coaxial decoding, Ultra High Gain mode) |
| Output power |
L+R≥635mW+635mW (16Ω,THD+N<1%) |
Output impedance |
<1.5Ω |
| L+R≥1610mW+1610mW (32Ω,THD+N<1%) |
Crosstalk |
≥ 113dB |
| L+R≥340mW+340mW (300Ω,THD+N<1%) |
Peak output voltage |
29Vp-p |
| SNR |
≥ 123dB (A-weighted) |
THD+N & Noise |
<0.00055%(1kHz/-14dB @ 32Ω) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
<0.0003%(1kHz/-2dB @ 300 Ω) |
| 20Hz~20kHz: damping＜0.1dB |
Noise floor |
＜4.8uV (A-weighted) |
| Parts of performance and parameters of BAL headphone output (4.4mm out, USB DAC/Coaxial decoding, Super High Gain mode) |
| Output power |
L+R≥675mW+675mW (16Ω,THD+N<1%) |
Output impedance |
<1.5Ω |
| L+R≥1060mW+1060mW (32Ω,THD+N<1%) |
Crosstalk |
≥ 113dB |
| L+R≥215mW+215mW (300Ω,THD+N<1%) |
Peak output voltage |
23Vp-p |
| SNR |
≥ 121dB (A-weighted) |
THD+N & Noise |
<0.00055%(1kHz/-13dB @ 32Ω) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
<0.00025%(1kHz/-4.5dB@300Ω) |
| 20Hz~20kHz: damping＜0.1dB |
Noise floor |
＜4.8uV (A-weighted) |
| balanced line headphone output part performance parameters (4.4mm output, USB DAC/coaxial decoding) |
| THD+N & Noise |
<0.00027%(1kHz/-5dB @ 10KΩ) |
SNR |
≥ 126dB (A-weighted) |
| Crosstalk |
≥ 105dB |
Noise floor |
＜1.8uV (A-weighted) |
| Frequency response |
20Hz~80kHz: damping＜3dB |
Line output level |
4Vrms |
| 20Hz~20kHz: damping＜0.1dB |
|
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