1pc Beyerdynamic A1.MKI Headphone Amplifie Finished Board
Note: We also provide the kit bulk board, welcome to ask us the price, if you need the bulk model, you can directly leave a message on the order and shoot the finished board, we will refund you the extra money charged, thank you for your trust and support ~!
Tech highlights：
Compared with the commonly reproduction of Beyerdynamic A1, we improved:
using class-A series type of voltage regulator to provide more silent power supply.
Integrated earphone protection circuit.
total 4 MOSFETs for for power output.
Use double op amp design, double op amp per channel, with higher channel separation.
all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign.
PCB is small and flexible, more suitable for all kinds of chassis installation.
More cost-effective sound modification plan.
PCB SIZE:127 x 152MM
Power requirements: AC（15-0-15）~（18-0-18V）,I ≥0.5A; Best:AC 15-0-15; I=1A
Compared with the commonly reproduction of Beyerdynamic A1, we improved:
using class-A series type of voltage regulator to provide more silent power supply.
Integrated earphone protection circuit.
total 4 MOSFETs for for power output.
Use double op amp design, double op amp per channel, with higher channel separation.
all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign.
PCB is small and flexible, more suitable for all kinds of chassis installation.
More cost-effective sound modification plan.
PCB SIZE:127 x 152MM
Power requirements: AC（15-0-15）~（18-0-18V）,I ≥0.5A; Best:AC 15-0-15; I=1A
Product configuration：
1pc Beyerdynamic A1.MKI Headphone Amplifie Finished Board
1pc Beyerdynamic A1.MKI Headphone Amplifie Finished Board
Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test.
Schematic & key point of debugging
PCB comes with component parameters for easy installation.
We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally.
please keep test point voltage close enough to it, +-20% is also permitted
Schematic & key point of debugging
PCB comes with component parameters for easy installation.
We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally.
please keep test point voltage close enough to it, +-20% is also permitted
