I should have also mentioned in my first post that the hum is not coming from the speakers. In fact, when I turn the volume up and pause the music, I hear nothing out of the speakers. It's the h400 that has a slight, even tiny hum. When I look behind the amplifier I have a spaghetti plate of wires between speakers, electric plugs, a streamer and a subwoofer but the hums not loud enough to make me try sort that mess out.
Hegel hum?
Spent a week or two enjoying my new H400 and noticed a faint hum between the time I turn it on and before I play music. Also there when I pause after playing a while. Note that the hum is only apparent when I bring my ear a foot away from the amp. I’m quite pleased otherwise but am wondering if this is normal?
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The hum is most likely coming from the transformer inside the amp. I use to hear it in my H390. Got a DC blocker and the hum went away. Since grounding the outlet the amp was plugged into I don’t hear any hum. I think what you are hearing is normal. I just purchased a Electrocompaniet intergrated and if I get very close to it, I can faintly her a buzz coming from it. No worry. |
My Hegel H590 has a normal, cyclical, mechanical, ever so slight hum. In over 25 years in high end audio, I've never owned an amp, whether it be tube or SS, that didn't have some kind of a hum. Some hums extremely slight, and some more noticeable. With my Hegel H590, the barely noticeable humming sound cycles out after a few minutes. |
hum out of speaker indicative of ground loop hum out of box indicative of DC offset causing toroidal vibration hums are annoying. You might try a DC filter ...ala, https://avahifi.com/collections/accessories/products/humdinger-dc-line-blocker |
- 16 posts total