Questions & Answers for: mains hum amplifier

...hum? If no, possibly replace your main amplifier IC. if its transistorized, check the two push pull amp. for shorts. If Yes, check for shorted audio cables. just maker sure you are using a good audio ...

dodgy conection, I would replace the large Electrolytic Capacitors in the power section, they are used to take out 50hz hum in the mains electric, when they go you get that hum coming into your system

...amplifier stage, If you hear no hum at all. problem with the main left amplifier. The main amplifier is usually a single IC for both left and right channel, OR one IC amplifier for the left and one ...

...amplifier no soft hum. this problem is due to a failure of the amplifier IC. or an open loudspeaker driver. this you can do, check the wiring of the loudspeaker if it is intact. you may need to ...

...Hum is always connected with the presence of AC interference into the signal path of the amplifier, which means the audio amplification is mixed with the ac ripples. So this can be a break down with ...

you help? The most obvious cause is the failure of the large Electrolytic Capacitor(s) in the main power supply section. These take out the 50/60Hz hum in the mains supply, which is what that noise is

My Amplifier is humming My Amplifier humms My amplifier hums.If it is really the amplifier that makes a humming noise check on the power transformer.But if your referring to humming produced on your ...

...the monitors off, much worse with them on It sounds to me like you could have mains hum breaking into your system because the large Electrolytic Capacitors in the power supply of your amp have

...hum is usually caused by a mains breakthrough in the amplifier due to a power supply fault or by a "hum loop" or ground loop. Plenty about this online. Another cause is an open circuit amplifier or ...

...mains hum, assuming it disappears when the volume is turned right down. If it is present with the volume turned down or the input short-circuited it indicates a power supply fault. A quick test for ...