Review on π Nobsound 100W Full-Frequency Mono Channel Digital Power Amplifier Audio Mini Amp for Home Speaker, Including Power Supply (Black) by Ken Booker
631Hz constant high pitched note plus hum
I used this to boost the sound for a medium sized speaker I have and ended up removing it from the equation due to the hum and piercing high pitched sound . a tonal note that kept ringing. Noise and ringing persisted (1) even after disconnecting the 12V DC power supply (deep cycle battery) and (2) even without any input. Once I took the amp out of the equation, the sound was perfectly clear. true, softer :) Maybe this amp is only for subwoofers?
- Many will fit
- No autotune
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