What is the major problem with the hum in this amp, can it be fixed
1189754
I have bad wiring in my house so just like Satnitespecl455, I bought a ground loop isolator from Radio Shack and all my problems went away.
1189755
I completely disassembled my amp and used it for a juke box restoration. I installed a preamp for the 45 record portion of it and grounded it to the metal frame of the juke box and used rca jacks to connect to this amp with no problems or hum. Now I also installed an 1/8" input jack so that I could plug in an I pod and that did not work out so well. Lots of hum. I believe this amp uses an isolated ground which is why the rca jacks worked for the preamp but the metal casing on the 1/8" jack for the ipod grounded to the frame did not work. As soon as I replaced it with a plastic cased one the hum went away.
1189756
I've never tried to fix it. If you figure it out I would love to know how you did
1189757
Radio shack also sells ground loop.isolators or you can build your own from a 1:1 transformer this should also fix the hum as well.
1189758
it has a loud hum . I grounded the units directly to the Case of the Computer. It reduced the hum significantly. I replaced both units just last week because these are pretty much junk in my opinion.
1189759
I use a beringer preamp picked up for $40, the hum went away, it has to do with noisy power from the audio source, not the amplifier.
1189760
I completely disassembled my amp and used it for a juke box restoration. I installed a preamp for the 45 record portion of it and grounded it to the metal frame of the juke box and used rca jacks to connect to this amp with no problems or hum. Now I also installed an 1/8" input jack so that I could plug in an I pod and that did not work out so well. Lots of hum. I believe this amp uses an isolated ground which is why the rca jacks worked for the preamp but the metal casing on the 1/8" jack for the ipod grounded to the frame did not work. As soon as I replaced it with a plastic cased one the hum went away. I completely disassembled my amp and used it for a juke box restoration. I installed a preamp for the 45 record portion of it and grounded it to the metal frame of the juke box and used rca jacks to connect to this amp with no problems or hum. Now I also installed an 1/8" input jack so that I could plug in an I pod and that did not work out so well. Lots of hum. I believe this amp uses an isolated ground which is why the rca jacks worked for the preamp but the metal casing on the 1/8" jack for the ipod grounded to the frame did not work. As soon as I replaced it with a plastic... » Read More I completely disassembled my amp and used it for a juke box restoration. I installed a preamp for the 45 record portion of it and grounded it to the metal frame of the juke box and used rca jacks to connect to this amp with no problems or hum. Now I also installed an 1/8" input jack so that I could plug in an I pod and that did not work out so well. Lots of hum. I believe this amp uses an isolated ground which is why the rca jacks worked for the preamp but the metal casing on the 1/8" jack for the ipod grounded to the frame did not work. As soon as I replaced it with a plastic cased one the hum went away. « Show Less
2284697
I have Onkyo TX-SR805 7.1. I also have this hum. I've tries everything under the sun and nothing gets rid of it. I've isolated it to the receiver in a pain staking process of elimination. If anyone has a fix, I would be interested. I have to have to return it, because otherwise it is awesome. That hum is really beginning to get to my ear drums.
558409
You're experiencing ground loop hum. Try using batteries only. If you still here loud hums, send it in for repair.
2148362
We had one with a loud humming noise and it turned-out it was not working properly so we returned it for a new one. They can have a low pitched hum but it should barely be noticeable. If you know how to check the voltage with a 12 Volt meter, you can check the delivery side of the transformer.....if it is not giving a consistent voltage of around 12, the transformer is bad.
95291
If you're 100% sure it's not the source, then yes. I don't have hum unless I am on high volume but I have had a lot of source hum from my sound card. So check that out before shipping it off.
1280131
check and make sure the volume control on the side of the amp is turned up. Its underneath the plastic cap. Hope this helps out
2039326
There are no moving parts in this SSD. So.. source of humming isn't the SSD. Check for stuff that you removed & remounted in the process of installing this SSD. It may be that something isn't screwed down as tightly as it was prior. And in case anyone was wondering if it could be electrical hum... I doubt it. This is a 5VDC device.... too low a voltage to cause any hum (& besides... it's DC only).
452225
Thank you! I finally solved the hum problem by plugging the iMic into "Line Out" on my amplifier instead of directly into my turntable. The hum disappeared! Hope you got your hum solved, too. Maria
895746
What's humming??? The antenna or the amplifier/rotor box???? Mine doesn't hummm at all.......
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.
949532
I am getting the same thing. It is a buzzing/loud humming noise. Anybody know if this is a defect or if something else can be creating this?
1824693
I found that making sure there was no interference from any other electronics nearby helped. Just experiment with moving the unit, the input cable, and the source of your sound (whatever you're broadcasting) around until you find the sweet spot. I've got virtually no hum now, but occasionally I'll hear some and invariably find that someone has moved one of the elements around. Once I put it back where it belongs, no more hum.
561532
No, I have not had that problem. The only problem is an occasional hum in the speakers.
1177598
It's a bad amp. You will have to get a new amp I had the same thing and had to get a new amp.
10789
This amp has a hum which you can not eliminate. I my opinion the hum out weights the pre-sets.I was not happy with it, so I returned it.
1003627
Thanks very much to those who offered suggestions. Everything was fine with the wiring. A phone call to a Sony tech resolved the problem, which was found to be my selection of HDMI Passthrough to "ON". As such, the receiver remained partially powered in Standby and resulted in the hum. Re-selecting HDMI Passthrough to "OFF" cured the problem.
367809
Mine has a slight hum. Some kind of ground loop, I guess. I'm using a 3-pin to 2-pin adaptor on the power cord--the hum is much worse without it. I've tried both the balanced and phone plug inputs (with RCA adaptors)... no difference. I haven't tried breaking the ground on one of the input cables yet.