I got a funny feeling routing a PC or changing it will fix the problem..
It's got to be. I've never seen a noise issue I couldn't fix. EVER.
If the noise is not there somewhere else, and got louder with another valve amp, but quieter with a SS, why is that? I think it's where you set it, and the power cord you used. You have a routing issue, an IC is picking up noise because of a PC being to close, and not enough shielding. I don't like shielding. I get rid of noise by routing.. All of it.
The only problem is if you have a ground loop issue. Get an adaptor, to remove the ground from you amp. See if the noise goes away. If it does you know how to fix that too.. Don't leave the adaptor installed.. Just for a test..
Get a jumper wire, hook between components, see if there is a voltage offset. The noise will stop, if there is. Make up a perm. ground wire.
There you go..
I got a few more, but I bet it's routing, or voltage difference between components.
Regards |
Another quick one turn off all the breakers but the one you're using...
If it's still there.
Fix the ground loop, or routing issue, it can be a component to close to another. Have you tried moving cables to see if the noise yo yo s. UP and down, up and down, while you move cables?
But you do have to try it.. They never heal on their own, unless you have a fiendish house guest. LOL
It did work right somewhere else. right? Another system with speakers, was NOISER... It's you... not the equipment... Route the cables and check for ground loops, listen to the OLD wore out mechanic.... get rid of the noise, once and for all...
Happy hunting....
Ok off to feed the chickens...
Regards... |
You know what is strange, when you had a complete system swap a few years back it was even noiser. How does that play into it..
I'm glad to see your getting somewhere, finally..
For some reason, I keep thinking a variac, would have told you a story.
What can cause it?.. It's just the mechanic in me. The bias is incorrect, a picky transformer? Be interesting to know what the fix is.. Not just an amp returned, with no noise.. 5 years...is a long time, to put up with noise.
I can't take the noises. LOL, I never stop until I get the sucker.
I had a few in 45 years of hunting.. oh yea...
Neighbors, wife would use a sewing machine, and caused the problem..
Not when using it, all the time. If it was plugged in, the stereo was noisy.
Took two months, until I came over and unplugged the WHOLE house.
Plugged that old machine in and there it was... It was the light on the sewing machine... Turn the work light on, noise, off no noise.. push the peddle, quiet as a mouse.
It took two months, and 2 hours to figure it out..
Regards |
Again, you took it to a repair man, they hooked it up, and there was NO NOISE. You brought home a whole different system, WITH speakers.
The noise was even louder.
Shorting plugs, la - te - da. IT WENT AWAY.....It was gone... It was fixed.
at the repairmans, WHAT did they do?
You moved, you still have the noise...
You have the answer. Think!!
The repairman, do you know if they simply had NO ground hooked up? NO.
Get the cheater plugs. 1.00 dollar each. Get more than one. Use them on every plug for a test, ONLY.
If it goes away, you have a difference in voltage between the unit and a component.
Remove the cheater plugs, all of them.
Take a jumper, and hook between components.
You can not have to many, BUT you might not have enough of them. Hook them to EVERYTHING, between all components, until the noise goes away. Once you've isolated the noise. Make or buy a ground wire, clean to bare metal, on both ends. Check to make sure the grounds are common. Check!!!
If the noise is still there after the checks, it is a routing issue as I said..
Does the noise Yo Yo.. If you move cables, does the noise go up and down. Be aggressive moving the cables, not rough, but move them more than an inch, move them a foot 12" not 1/2". Then you've checked..
No Check No fix.. Or a Train ticket, I'll come and fix it for you.. My fingers are getting tired...
Regards |
Shorting plugs are real good for Point To Point, cross talk.. That I do know..Buzz, Hum.. It would be a new one, but not to expensive to try.
I been reading back through the post, a couple things. A goner posed speakers? something about powered speakers. Point is, unhook ONE speaker and see if the noise goes away. Just one. Hook it back up and do the other side.
If it goes away with one but not the other, you're CLOSE!
If the speakers are bi ampable? PULL the jumpers, ok Bear with me..
Again one at a time. First top (highs) then the bottoms
I'm noisy, bare with me.
Clean the jumpers, get zip cord, I don't care BUT change the jumpers
clean the post all of them
If none of that works. Cost nothing, right.
The Second a Variac, you happen to know anybody with one?
You need to have a variac, though.
It didn't dawn on me to try. It's kind of second nature for me, tinkering to use a variac.. I've had transformer noise, and speaker noise, and stopped it with a Variac. It WAS NOT the cure but it lead to one. A pair of filter caps, and a cheap pair of mismatched bridge rectifiers. They acted up with 120 VAC but shut right up at 110 or so.
You would start at say 101-5, and really start listening and paying attention. Again ya never know.. and it doesn't cost a dime, just time.
Gee! tough one for sure.. Plane ticket time... I'd like to try, just to see what the mystery was.. 2 hours..Tops.. I bet we could figure it out ..With a DMM, couple wires, clips and a variac.
Happier hunting.. you'll get it...Eye of the Tiger... all that stuff..
Regards.. |
I want to see if your speakers had two sets of binding post. If they did I wanted to isolate top from bottom. Red, or black disconnected..its gonna stop making the noise, has to.
If one speaker STOPPED the noise in the other, we would have been close..
A small set of different speakers is easy.. and different speaker cable, zip cord is perfect.. Swap them out.. if no change, and without a Variac, there is one other freebie.
Unplug everything in the house, everything.. Home security, electrical, especially 220. Everything that has a plug, UNPLUG it. From RJ11 to RJ45, phone land lines, network cables, cable boxes, unscrew, unhook, undo EVERYTHING. Turn off all battery powered led, if they have a monitor light, take out the batteries, turn off your cell phone, WiFi EVERYTHING in that house OFF, and unplugged, and power removed, batteries too.
Get a long extension cord.. Start plugging in all over the house, see if the noise changes or goes away.
If by chance it’s gone, leave it plugged in wherever it’s quiet, and start plugging in a room at a time. Then any 220 plugs, then the land lines, network cable.. Isolate then fix.. ok
Now you can turn your cell phone and pacemaker back on. If the noise starts then, you really got a problem..
If you can’t get a variac and drop the voltage... it’s Shop time.
I ran out of no cost test..
Hang in there, after all this time.. you’ll get it..
Regards |
I have multiple built in appliances in my house and thus could not unplug everything as you suggest. A previous suggestion was to turn off all the breakers except for the one to the stereo. Will this work as well as what you suggested?
Yes, but in the event it does go away, you'll be doing what I said to isolate the offender, anyway.. Either way.. will work for the test though.
Built in, I'm not worried about, too much. WHY. because you brought your noise with you, you've moved.. Not saying a common appliance isn't a problem.. chances are slim, though.. just saying..
I suggest an extension cord, only to get away from whatever is in the room. Turn all the breakers off including the room the stereo is in.
The room you choose turn back on and plug into. Make darn sure, nothing is plugged in, in that room, except the extension cord, back to your stereo..
After that only thing is drop the voltage down.. If It was a tube unit, we would have looked at possible noisy valves too.
Your getting there..hang in there. one way or the other...
Oh and BTW I bought a plane ticket to come fix it. My ticket is for Cancun Mexico... Oh you don't live there.... opps.. can you meet me there..LOL
Regards.. |
The next step would then be to make sure that all the signal cables you have are shielded like a coax cable.
This is the problem. It's integrated. That's the issue. Speakers, IC and an Integrated amp. Nada, nothing else is hooked up, or shouldn't be.
Suppose to swapped out to a cheap pair of speakers and zip cord, that's on the, try out list. No cost anyway..
OP, HAY OP One other thing.. That IA, does it have LEDs in it anywhere,
Little buzzin' baster^&. I forgot about them. They can wreak havoc, too.
Regards |
