Note: This product is an Apos Special. That means it’s new, final sale, and carries the manufacturer’s warranty.
The Shanling UP4 is a portable headphone amplifier that comes with a balanced output for better sound and more power. It comes with dual ES9218P D/A chips, CSR8675 chip, and Bluetooth 5.0. For outputs, it comes with a 2.5mm balanced out (low/high gain) and a 3.5mm single-ended out. Apos Audio found that the UP4 supports LDAC/HWA, LHDC/aptX, HD/aptX, L/aptX, and AAC/SBC, which also makes it Hi-Res audio certified. Finally, the UP4 offers high resolution, clear-powerful output with low impedance, and is very power efficient.
Specs:
- Bluetooth Support: LDAC, HWA(LHDC), aptX HD, aptX Low Latency, aptX, AAC, SBC
- Bluetooth Chip: Qualcomm CSR8675
- D/A Chip: ESS Sabre ES9218 (x2)
- Bluetooth Version: Bluetooth 5.0
- Bluetooth Reach: 10 m
- Microphone: Knowles SiSonic
- Output Power:
- 71 mW @ 32 Q (single ended, high gain)
- 91 mW @ 32 O (single ended, Dual DAC mode)
- 160 mW @ 32 Q (blanced output)
- SNR:
- 120 dB (single ended)
- 120 dB (balanced)
- Channel Separating Degree:
- 73 dB @ 32 A (single ended)
- 96 dB @ 32 Q (balanced)
- THD + N:
- 0.003% (LDAC/A - W/0.5V/32 Q)
- 0.03% (0.5 V/others/A-W/ 32 O)
- Battery Life: 15 hours (single ended), 10 hours (balanced)
- Charge Time: 2 hours
- Battery: 550 mAh
- Power Adapter: DC 5V / 500mA
- USB: Type-C Interface, Support Driver Free USB DAC
- Volume Control: Independent from smartphone volume setting and controlled by volume wheel
- Audio Output: 3.5 mm Single Ended Jack, 2.5 mm Balanced Jack
- Size: 60 x 36 x 13.5 mm
- Weight: 37 g
- Accessories: Clip Case, USB-C Cable, User Guide