General Information
Limited
1. Brand new USB main control, supports firmware upgrade via USB.
2. Use AK4497EQ to decode.
3. Using ST's MCU processor and single-chip system, optimized for S4 code.
4. Using a fully balanced architecture, from the DAC to the LPF to the amp, including the volume adjustment are all balanced, which can be regarded as a player without system parts.
5. Adopt flagship volume control method, programmable analog volume chip-PGA4311UA, four-channel high-precision volume control, completely lossless.
6. The LPF uses 2 AD8620BRZ dual op amps, and a single one is close to 200 yuan per piece.
7. The amp uses 2 OPA1622 op amps, low distortion, and provides 145ma high current output.
8. The whole machine uses one-thousandth precision 25PPM resistors, 5~10% capacitors, ceramic capacitors are made of X7R material, tantalum capacitors are made of Rohm, Panasonic, etc.
9. PCB adopts Taiwan Nanya FR4 board, TG155 value (generally TG135 or lower), heavy gold, thick copper.
10. Provide 4 gains, 127 steps of volume adjustment, 8 kinds of filters.
11. Up to 6 groups of power processing, provide cleaner sound, no bottom noise, strong anti-interference.
12. Measurement size: 81X32X13mm, weight is about 50 grams.
13. Output level:
3.5mm Single-ended, 4.5VRMS at max volume step-127, 2VRMS at volume step-99
4.4mm Balanced, 9VRMS at max volume. 1KHZ sine wave.
14, THD+N, single port 0.0007%, balance port 0.0006% 1KHZ A weight, no load.
15. S/N ratio, single port -115DB, balanced port -120DB, 1KHZ, A weight, no load.
16. Output impedance, 2 ohms for single port, 1 ohm for balanced ports.
17. Power consumption, standby 5V 170ma current. Play state 5V 190~200ma, (50% volume, 32 ohm load on balance port)
The official shipment adopts CNC aluminum alloy shell. The picture below shows the 3D printing comparison of the size of the lighter.
1. Brand new USB main control, supports firmware upgrade via USB.
2. Use AK4497EQ to decode.
3. Using ST's MCU processor and single-chip system, optimized for S4 code.
4. Using a fully balanced architecture, from the DAC to the LPF to the amp, including the volume adjustment are all balanced, which can be regarded as a player without system parts.
5. Adopt flagship volume control method, programmable analog volume chip-PGA4311UA, four-channel high-precision volume control, completely lossless.
6. The LPF uses 2 AD8620BRZ dual op amps, and a single one is close to 200 yuan per piece.
7. The amp uses 2 OPA1622 op amps, low distortion, and provides 145ma high current output.
8. The whole machine uses one-thousandth precision 25PPM resistors, 5~10% capacitors, ceramic capacitors are made of X7R material, tantalum capacitors are made of Rohm, Panasonic, etc.
9. PCB adopts Taiwan Nanya FR4 board, TG155 value (generally TG135 or lower), heavy gold, thick copper.
10. Provide 4 gains, 127 steps of volume adjustment, 8 kinds of filters.
11. Up to 6 groups of power processing, provide cleaner sound, no bottom noise, strong anti-interference.
12. Measurement size: 81X32X13mm, weight is about 50 grams.
13. Output level:
3.5mm Single-ended, 4.5VRMS at max volume step-127, 2VRMS at volume step-99
4.4mm Balanced, 9VRMS at max volume. 1KHZ sine wave.
14, THD+N, single port 0.0007%, balance port 0.0006% 1KHZ A weight, no load.
15. S/N ratio, single port -115DB, balanced port -120DB, 1KHZ, A weight, no load.
16. Output impedance, 2 ohms for single port, 1 ohm for balanced ports.
17. Power consumption, standby 5V 170ma current. Play state 5V 190~200ma, (50% volume, 32 ohm load on balance port)
The official shipment adopts CNC aluminum alloy shell. The picture below shows the 3D printing comparison of the size of the lighter.
