Review on π Enhance Audio Quality with Ximimark NE5532 PCB Sound Magnifier Board: Preamplifier Audio Amplifier Module featuring 4558, LM833, LT1057, AD827, OPA2604 by Melissa Cook
Uneven gain from 20 to 20kHz
This amplifier provides 15dBm of gain from 10Hz to 2kHz and then drops to 2dBm at 20kHz. Not very suitable for stereo sound. The company doesn't provide me with the circuit, so I may have to reverse engineer it to improve the response.
- Good value for money
- Null
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