Description
Specification
Working voltage: dc12-dc24v
Interface specification: 5.5-2.5
Output connector: 3.5 stereo headphone socket
PCB size: 103 * 100mm
| Version | Operational amplifier | Output pair tube | Coupling capacitance | resistance |
| A NE5532 Standard | NE5532 | 2N5551 5401 | Nichicon BP-P | Vishay MMA0204 wafer |
| B OPA1612 Version | OPA1612 | ZTX450 550 | Nichicon BP-P | Vishay MMA0204 wafer |
Characteristic
This product is a finished board, which has been debugged by technicians and can be used in general.
1. The output state is adjusted to class a state, which greatly reduces the output distortion and increases the driving force, making the sound fuller and more natural.
2. In the new version, the electronic filter circuit composed of Darlington is used. The output internal resistance is very low and the loss is small, so the dynamic performance is improved.
3. Using the British ZTX series output pair, the maximum output current can reach 1a. Using the ultra-low distortion opa1612. The sound quality is far better than the original ad823, and the analysis power is improved a lot.
4. The coupling adopts the BP-P series electrodeless capacitor with Nichicon high spot, and the resistance is the German high-precision Vishay mma0204 round crystal chip resistor.Package includeA NE5532 Standard/B OPA1612 Version:1*Amplifier BoardC Power Charger:1*Only a Power Charger 
Specification
Supply Voltage : DC12V-DC24V
Brand Name : electric magic
Application : Headphone Amplifier Board
