Amplifier hum?

[mocwilson]

hi all,

so I just bought a new amp, and it has a very slight hum when I put my ear right up to it, just wondering if this is normal, as on my previous amp there was none...that I remember ever hearing anyway. do amplifiers just in general hum a bit depending on the unit and is there anything I should be worried about, like will it damage the unit? [ theres no sound or buzzing coming from the speakers, just a very slight hum from the amp itself.

thanks

 

[lovinthehd]

What amp is it?

 

[mocwilson]

What amp is it?

Monolith 7x

 

[lovinthehd]

@Pogre yours hum like that? There's a couple other owners around here, too....

 

[mocwilson]

@Pogre yours hum like that? There's a couple other owners around here, too....

Cool thanks

 

[TLS Guy]

hi all,

so I just bought a new amp, and it has a very slight hum when I put my ear right up to it, just wondering if this is normal, as on my previous amp there was none...that I remember ever hearing anyway. do amplifiers just in general hum a bit depending on the unit and is there anything I should be worried about, like will it damage the unit? [ theres no sound or buzzing coming from the speakers, just a very slight hum from the amp itself.

thanks

That is very common. It is coming from the power transformer and nothing to worry about.

 

[mocwilson]

That is very common. It is coming from the power transformer and nothing to worry about.

Ok thanks puts my little mind at ease lol.

 

[Pogre]

@Pogre yours hum like that? There's a couple other owners around here, too....

Well I never noticed it before, but yes. If I put my ear right up against it I can hear the hum. But since I never put my ear against my amp I s'pose I can live with it, lol.

What were you doing with your ear on the amp??

 

[mocwilson]

Well I never noticed it before, but yes. If I put my ear right up against it I can hear the hum. But since I never put my ear against my amp I s'pose I can live with it, lol.

What were you doing with your ear on the amp??

Oh you know just a hobby, listening to amps
Lol I was just hooking it all up, had to squeeze in over top of it.

 

[PENG]

Monolith 7x

Big transformers in them, it won't be normal if they don't hum lol.. Even if the hum is audible from a couple feet is normal, again, considering the size and the fact that there are two of them in it. Some people are more/super sensitive to the 50, 60, 100, 120 Hz too, I am anyway.

 

[massacre]

i had the same problem but mine was louder it was frustrating. the cause was a heat that was back feeding a sine wave that makes the transformer hum louder. i unplugged the heater and it went away.

 

[Endaar]

The hum is basically noise in the electrical line.

I have an Outlaw 7100 that had a transformer hum from when I bought it in 2003. I bought a Monolith M7X a few years ago to replace it, and when installed in the same location, the 7X was silent.

I moved recently, and while the 7X has been almost quiet, I did catch a hum one time.

Point being some amps are more prone to hum than others, and it may not be consistent.

The fix if it bothers you is https://avahifi.com/products/humdinger-dc-line-blocker

This completly eliminated the noise on the Outlaw. I ordered another one for the Monolith but haven't hooked it up yet as the hum went away on its own.


Sent from my iPhone using Tapatalk

 

[Kvn_Walker]

Well I never noticed it before, but yes. If I put my ear right up against it I can hear the hum. But since I never put my ear against my amp I s'pose I can live with it, lol.

What were you doing with your ear on the amp??

He was proving that all amps, actually, do not sound the same.