Hi, it is first time for me with class D and i don't have comparison so i have question.
I bought TPA3116 labeled ZK-TB22 Wuzhi Audio looks like this
And i'm experiencing more noise sound than i expected.
1. this is noise that makes bluetooth
2. After disabling bluetooth i can hear this
and this sound can be reduced if i turn on a little both treble knobs
3. Sound without blue tooth and treble knobs turned up
4. But this sound is still way off in comparison to my cheap creative example:
To avoid power supply interference i connceted amp to battery and did not connected aux.
So is it normal ?
I bought TPA3116 labeled ZK-TB22 Wuzhi Audio looks like this
And i'm experiencing more noise sound than i expected.
1. this is noise that makes bluetooth
2. After disabling bluetooth i can hear this
and this sound can be reduced if i turn on a little both treble knobs
3. Sound without blue tooth and treble knobs turned up
4. But this sound is still way off in comparison to my cheap creative example:
To avoid power supply interference i connceted amp to battery and did not connected aux.
So is it normal ?
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