My amplifier is crackling...

So it would be more like what you’d call a hum, on a slightly low tone. Quite difficult to solve since you can’t really open laptops, for example, to connect the ground of the source (phone, mp3, computer) to that of the amplifier.

You don’t say whether you’ve tried changing the input (between TUNER, LINE, TAPE IN, AUX).

We can’t also isolate the cable to avoid electrical interference, which generates stray signals.

Worse: I have a Sony laptop, connected, that hums, whereas an Asus is perfectly clean.

I also have a Zicplay-brand MP3 player, battery-powered only, that hums, whereas usually it’s poorly isolated power adapters that are affected. Other players are silent and it’s not a price issue.

The same phenomenon with most powered speakers (on mains).

In other words, it’s a problem of design of the “players or miniaturized amplification circuits.”

Clearly, your amp doesn’t have problems since it doesn’t hum on the turntable.

Try your sources on other amplifiers to confirm whether the phenomenon occurs or not.

For me, the solution would be to find well-designed sources and thus with correct output stages.

That exists, but is difficult to detect under showroom listening conditions. You have to try it with headphones.

That said, it isn’t logical to have to change a part of your equipment.

You can also borrow different players or PCs to try to find brands that perform best in this regard.

Best regards.

I’m glad about that. Maybe another time.

Georges

Good evening,

If the crackling occurs only when you turn the volume knob, it must be a potentiometer problem. The track may be worn or damaged and it would be necessary either to use a special electronic contact treatment spray (temporary solution), or have the potentiometer replaced.

If, on the other hand, the crackling is continuous, it would be due to saturation, either from the output level of the source relative to the input being used, or a impedance issue between the input and the output. You do not specify whether it happens with any source (computer? turntable?) and you would need to check the impedances of each input on the amplifier and change them if needed.

Regards.

Hello,
My case is different, I have an Altec Lansing vs 4621 speaker, except that the bass speaker and the satellite speaker that has the knobs to adjust the sound crackle on the highs but not the other small speaker..
If you could help me please.
I reconnect the small speaker via an RCA cable M/M. and it crackles with my iPod/ PC/ and also my turntable.
If anyone has a solution.. thanks in advance.

Hello,
I own a Yamaha AX-V401 amplifier that is over 25 years old, as are my Elipson speakers. My equipment works fine except when I connect it via an RCA/Jack cable to my computer or iPhone: there is crackling every time there are bass notes, no matter how I adjust the volume or change the input.
Would you have a solution, please?
Thanks in advance