Does it produce a hum over the speakers when there is no input? I have a cheaper one that I bough that does that and it is very annoying.
1705080
Sounds like you have a ground issue somewhere, I haven't experienced any hum or distortion
1705081
i've never noticed a hum. The red LED is a bit distracting, but I just turn it away from my line of sight. Seems to work just fine overall.Note: I am not an audiophile and don't hear frequencies much above 10 kHz. Sometimes other people hear things that I don't. FYI.
1705082
I have not heard any humming over the speakers. I'm pretty happy with my purchase and I have a Bose Cinemate surround system.
1705083
I use it to record through, and can say I have no evidence of a hum. A hum is usually a sign of a ground loop, so I would suggest trying an decoupler (hum buster) if it persists when connecting your devices.
660749
Yes there is a hum (slight). What I hear is constant; no matter what volume I am set at. I actually had to exchange my first set due to amplifier 'popping'. Again, volume setting did not matter. I have decided not to let this hum problem bother me because it is inaudible when something is playing.
2175444
There is no hum level. Very quiet but excellent sound when music is playing.
195944
Not all headphones hum, but I have had a few that did. Mine is currently 4 months old and working perfectly fine. If you purely want it for headphones then this might not be the correct choice for you. Then again when you are listening to music you won't hear the hum most likely. I use mine mostly for the headphone option and have no problem, but only one of my pair don't hum which are my Philips Fidelio X1's
1824694
Mine also hums but just when setting there, as soon as I turn on the radio on the humming quits. It did hum one time and all I had to do was turn off then back on.
660754
Yes, I too can hear a faint hum when the speakers auxiliary jack is either plugged in or not. However, the hum I hear is so minute and faint that the only real possible way of detecting it is by placing my ear more or less directly next to the bass. Also, the hum subsides whenever sound is played. It is my belief the hum is merely caused by the electricity coursing through the bass. Cyber Acoustics products produce powerful sound so it is not illogical to think that they would use a decent amount of power to function. This is my 50 cents but feel free to contact them. They are a reputable company. Yes, I too can hear a faint hum when the speakers auxiliary jack is either plugged in or not. However, the hum I hear is so minute and faint that the only real possible way of detecting it is by placing my ear more or less directly next to the bass. Also, the hum subsides whenever sound is played. It is my belief the hum is merely caused by the electricity coursing through the bass. Cyber Acoustics products produce powerful sound so it is not illogical to think that they would use a decent amount of power to function. This is my 50 cents but feel free to contact them. They are a reputable... » Read More Yes, I too can hear a faint hum when the speakers auxiliary jack is either plugged in or not. However, the hum I hear is so minute and faint that the only real possible way of detecting it is by placing my ear more or less directly next to the bass. Also, the hum subsides whenever sound is played. It is my belief the hum is merely caused by the electricity coursing through the bass. Cyber Acoustics products produce powerful sound so it is not illogical to think that they would use a decent amount of power to function. This is my 50 cents but feel free to contact them. They are a reputable company. « Show Less
1665954
It does make a sound but its barely audible. I leave mine in my master bathroom and cannot hear it when its running. If I'm standing next to it, I can hear a very faint hum.
1633717
No noise or hum - I forget it's even there unless it's doing it's self test (about 5 seconds) then it's quiet again. South Florida.. we have lots of power interruptions and it's been a blessing.. I know it has saved my computer time and again.
923139
There is a hum but not an annoying hum. My son who is sensitive to sound (like a dog) doesn't seem to mind. I bought this last December, he has it on a timer and it goes on every night, still working a year later.
1316026
yes but when i went to play music on it i had a very bad hum in the music , I tried 2 time's with 2 new unit's the same noise every time sow i got a different unit and now noise at all ! Hope it work's 4 u !!
2175290
I've had no problem with hum,Sometimes hum is caused by unshielded wires too close to speaker wires, or power cords too close to wires.Sometimes wires have defective shielding.Did you ever have a ungrounded turntable that caused a low hum??Anyway,check your wiring.If it happens on any input maybe it's wiring near speaker cables.If it happens on only 1 input replace those cables!!Not a design flaw!!Good Luck!! Dave & B.H.'s answers makes a lot of sense also!!
333126
Well, let me qualify my response, not unless the 'appliance' you have plugged in to happens to produce a humming sound. For whatever reason that is. LMAO!
558414
If I do not have anything (no Inputs) plugged into the amp, mine does not hum, even with volume turned up to max.
282741
I not totally sure, but I know if there is humming you have some electrical interference. The cables are possibly too close to the conduit in the walls or some other issue. I've had no problems with my setup, but when I turn my microwave on the sub hums. Not a big deal for me since it's not used much. So it's worth a try, if not return it.
481232
Yes this unit is great for live speech or music and despite others saying it has a loud or slight distracting hum, mine has absolutely no hum at all. I replaced the power supply with an old laptop power supply I had laying around the house and the hum went away. The power supply is not bad that comes with the unit, it's just insufficient (not really rated for this unit).
569375
A hum that you can hear is normal. If it is loud, something is wrong. If it is noisy without a load connected, I would replace it. Are you sure you have not overloaded it?
222292
I get the same thing from a Vizio. You could probably get an in-line noise filter to fix that problem but the hum mine isn't loud enough to bother me so I haven't done much.