How do i repair a noise sayonapps 1192bt subwoofer?

[Alky00]

And it is not about isolating the noise. The system just make noise whether there is input or no input signal. I have tried to find the problem but still making noise. It is not ground issue or any other external source. The issue could be on its amplifer. How do i repair it?

 

[WHONOES]

What sort of noise does your system make?

 

[Audioguru]

Noise can be high frequency hiss, low frequency hum, a continuous or pulsing tone, clicks and pops when an electrical device turns on or off nearby, or radio interference.
Please tell us which kind of these noises.

 

[Alky00]

What sort of noise does your system make?

Rattling hissing noise

 

[Alky00]

Noise can be high frequency hiss, low frequency hum, a continuous or pulsing tone, clicks and pops when an electrical device turns on or off nearby, or radio interference.
Please tell us which kind of these noises.

High frequency hiss

 

[Audioguru]

A cheap and poor quality amplifier or amplifier IC produces hiss.
The sales sheet from the amplified speaker system manufacturer says 18,000W (!) for the subwoofer parts then also says 100W but with no audio spec's like what kind of Watts, with how much distortion and at what frequency.
They say three 20W other speakers but show and list only two.
They say they have no reviews.

 

[Alky00]

What do you suggest?

 

[Audioguru]

It is normal for a cheap and poor quality speaker system to have your hiss problem.
Replace it with a Name Brand higher cost, higher quality system.

 

[Alky00]

Alright. Thanks