Q3 MQA Portable DAC and Amplifier
| General specifications | |||
| Name/Model | Q3 |
Hardware scheme |
DAC: AK4452，USB: XMOS XU316，AMP：THX_AAA_28*2 |
| Color | Black |
Volume Scroll |
Potentiometer+ADC Sampling |
| Weight | ≈110g | FiiO Control |
No |
| Dimensions | 105mmx59mmx12.5mm |
Samplig rate indication |
Blue＝PCM Green ＝DSD Magenta＝MQA |
| MQA full decoder | 8x |
Recommended headphone impedance |
PO:16~100Ω BAL:16~300Ω |
| Maximum supported sampling rate/DSD | PCM384kHz-32bit/DSD256 |
Firmware upgrade |
System firmware and XMOS can be upgraded via USB |
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Buttons and interfaces |
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| Button | One button for Gain, Reset and UAC1.0 |
USB |
TYPE C USB |
| Switches | Charge switch, bass switch |
Headphones ports |
3.5mm(phone out/line in), 4.4mm, 2.5mm (Bal to unbal adapters are prohibited) |
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Power parameters |
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| Power supply | 5V 2A | Battery capacity | 1800mAh |
| Charging time | ＜2h | ||
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Battery life and test conditions |
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3.5mm output：≥13h | 2.5mm/4.4mm output：≥12h |
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| Audio in | USB IN | Gain | Low |
| BASS | Off | Tracks | MP3 44.1KHz/16bit |
| Charge | Off | Load | 32Ω |
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2.5mm/4.4mm output：≥23h |
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| Audio in | USB IN | Gain | Low |
| BASS | Off | Tracks | MP3 44.1KHz/16bit |
| Charge | Off | Load | 32Ω |
| Audio parameters | |||
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Headphone output performance parameters （3.5mm output） |
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| Output power | 175mW(16Ω,THD+N<1%) |
Output impedance |
≤ 1 Ω |
| 160mW(32Ω,THD+N<1%) | Crosstalk | ≥ 76dB | |
| 18mW(300Ω,THD+N<1%) | Output level | 2.3Vrms | |
|
THD+N |
<0.0012%(1kHz/-6dB@32Ω) |
SNR |
≥ 115dB (dbA) |
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Frequency response |
20Hz~50kHz: (±:1.5dB) |
Noise floor |
Gain = H,≤ 5uV(dbA) |
| 20Hz~20KHz:(±:0.3dB） | Gain = L,≤ 5uV(dbA) | ||
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Balanced output performance parameters（4.4mm/2.5mm，UAC IN) |
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| Output power | 280mW(16Ω,THD+N<1%) | Output impedance | ≤ 2.6 Ω |
| 330mW(32Ω,THD+N<1%) | Crosstalk | ≥ 99dB | |
| 40mW(300Ω,THD+N<1%) | Output level | 3.3Vrms | |
| THD+N | ≤ 0.001%(1kHz/-4dB@32 Ω) | SNR | ≥ 118dB (dbA) |
| Frequency response | 20 Hz-50KHz: (±:1.8dB） | Noise floor | Gain = H,≤ 7.5uV(dbA) |
| 20 Hz-20KHz: (±:0.3dB) | Gain = L,≤ 7.5uV(dbA) | ||
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Balanced output performance parameters（4.4mm/2.5mm，Line IN) |
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Output power |
265mW(16Ω,THD+N<1%) |
Output impedance |
≤ 2.6 Ω |
| 370mW(32Ω,THD+N<1%) |
Crosstalk |
≥ 100dB | |
| 105mW(300Ω,THD+N<1%) |
Output level |
3.5Vrms | |
|
THD+N |
<0.0007%(1kHz/1.15V@32Ω) |
SNR |
≥ 120dB (dbA) |
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Noise floor |
≤ 3.5uV(dbA) | ||
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Frequency response |
20Hz-20KHz:(±:0.2dB) |
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