It might be the lighting in your home. If the outlet you are using for your gear is on the same fuse as a track lighting switch, then that might be it. the transformer box for your track lights might be dishing out RF interference. Also, if there is a dimmer switch located on the same line as your audio electrical outlet, that has a good chance of producing hum and buzz as well. Other culprits might be a ceiling fan, or anything else that's on a dimmer switch. The other posts saying it might be the cable TV wire and too many 3-prong cords making a ground loop are 2 of the top reasons for hum and buzz. Also keep in mind that even if you eliminate all the 3 prong cords, you might still get buzz if any of your gear is touching metal - like a tray or the metal cabinet spines. If all else fails, I guess try balanced interconnects.
What is causing my speaker hum?
My speakers, Joseph Audio RM22si's, hum (unwanted noise) when the receiver is on. It was the same with my old Infinity speakers. It's there when the receiver (Denon 70Watt x 5 channel receiver) is on, but it's much louder when I'm playing a CD and then pause the CD (using a Toshiba DV333 DVD/CD player). I am using the digital out from the player into the receiver (and therefore using the D/A built into the receiver).
Is this just bad amplification? Could it possibly be bad grounding, and if so is that something I can fix? I don't think it's the CD player, because I'm using the digital out, and when that is paused there should be zero signal sent, yes?
One other very weird side note. Usually it is just white/pink style noise, but one time I heard a song playing. I'm not schizophrenic, there was actually a song playing silently in the noise, different from the one on my CD. Could that be the receiver's tuner leaking out or something coming through the power lines?
One thing I'm trying to figure out is if I buy an amplifier and plug the receiver into that, if my problems will go away, or if you guys think the problem is upstream from the amp.
Thanks,
Matt.
Is this just bad amplification? Could it possibly be bad grounding, and if so is that something I can fix? I don't think it's the CD player, because I'm using the digital out, and when that is paused there should be zero signal sent, yes?
One other very weird side note. Usually it is just white/pink style noise, but one time I heard a song playing. I'm not schizophrenic, there was actually a song playing silently in the noise, different from the one on my CD. Could that be the receiver's tuner leaking out or something coming through the power lines?
One thing I'm trying to figure out is if I buy an amplifier and plug the receiver into that, if my problems will go away, or if you guys think the problem is upstream from the amp.
Thanks,
Matt.
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- 10 posts total
- 10 posts total