Chip Vol
how can i make amplifier to stop humming speakers? It starts humming when i turn up the vol.?
It's circuit of two chips(530 IC). Having Two Mic points attached to each IC with individual volumes for input. It works fine but when i turns up its volume a humming sound comes in speakers.It does't effect by bass or treble switch. what should i do to stop humming this sound. It's two 530IC's work differently on different volumes.
Hi there,
What you have is a groud loop problems, which is that your apmlifier is trying to equal the ground level of your two Mic points though the microphone cable. What you need to do is run one of your microphone cable trough a device called ground loop elimimator. It comes with two pair of RCA cables on both sides, one side for your amp and the other for the mic. If your mic is quarter inch male jack then you'll nee to get a quarter inch to RCA adapter. If your system is mono(mic), then use the white RCA plug to plug in the mic. I live in Canada, and I got myself one yesterday form the Source by Cicuit city retailer.
Hope this help. Good luck!
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