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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Equipment Forums > Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)

Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) Discussion of cables, power (the electric kind), tweaks, & accessories.

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Old 03-27-2008, 07:22 PM   #11 (permalink)
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Originally Posted by earwicker7 View Post
Nope, doesn't happen with any other inputs, only when the CD Player is running.

Denial can be realy amazing, don't you think?
Ground loops are also really amazing... well.. more annoying than amazing.
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Old 03-27-2008, 07:27 PM   #12 (permalink)
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Originally Posted by earwicker7 View Post
Power up the CD player, but don't play anything. Crank the volume up all the way. You're going to hear a hissing sound, and it's going to be fairly loud.
Your source/system doesn't seem like it mets decent specs. Volume all the way up, I can't tell if my system is on or off, until I hit play.


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Last edited by JohnFerrier; 03-27-2008 at 07:29 PM.
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Old 03-27-2008, 07:27 PM   #13 (permalink)
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Originally Posted by Vul Kuolun View Post
What do you mean with "running"? Connected? Switched on? CD playing a "digital zero"-signal?

And your amp does not give any hiss with any other input with a device connnected?

Did you check for ground loops?
Well, my CD Player (Linn Akurate) is one of those "always on" CD Players, but this happens when it is in standby, when it is powered on but not playing, and during play. And the amp has zero noise with other inputs.

When I first got the amp, I called Ray about it, as I assumed something was wrong. Immediately, he said "It's only on the digital players, right?" I told him this was the case, and he explained digital circuit noise to me. I did a bit of browsing and found that this is indeed a common problem.

Long story short... I don't see how there's any wiggle room anymore for the "Power Cables can't change sound" idea. Hopefully we can all get along now
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Dynamic Amp--Ray Samuels B-52
Electrostatic Amp--Rudistor Coriolan 2
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Cables--Shunyata Anaconda from the wall; Shunyata Python VX to the CD player; the remainder is Cardas
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Old 03-27-2008, 07:28 PM   #14 (permalink)
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Sounds like a grounding issue with your amp.

I don't experience the "hiss" you described with my player and amp. I got my power cord free with a computer power supply.

How can my cheap power cord perform the same as your Shunyata?

Further, the hiss should be a measurable waveform. Use an oscilloscope to measure the waveform coming out of your wall socket. Then plug the power cord into the same socket and measure again with the oscilloscope. If the power cord is making a night and day difference, it'll show up.

I'd be happy to admit you're right if you prove it.
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Old 03-27-2008, 07:28 PM   #15 (permalink)
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Originally Posted by earwicker7 View Post
I can't be the only person here who knows about the digital noise thing, am I?

There's nothing wrong with my system, it's a well known (well, it should be) fact that digital circuits are highly succeptible to picking up interference and this noise shows up on a really resolving system. At least it did until I put the Shunyata on; now it's virtually gone.
Enlighten me as to how a powercord would make any difference.
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Old 03-27-2008, 07:30 PM   #16 (permalink)
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Originally Posted by earwicker7 View Post
If you're not sure what I'm talking about, do the following... make sure you have your CD player selected as the input. Power up the CD player, but don't play anything. Crank the volume up all the way. You're going to hear a hissing sound, and it's going to be fairly loud.
I have no idea at all what you are hearing.

With my SA8001 feeding my CK²III into HD600's.....nothing playing......level of the CK²III maxed......I hear nothing. Nothing at all regardless of where I set the volume.

With my 0404 USB feeding the same amp and headphones......connected via USB......no player app running......I hear nothing.

They're all using stock cords plugged into a $10 power strip that I bought in 1988. The 0404 USB is powered by a wall wart plugged into that strip.

That claim in bold is the most preposterous piece of rot that I have ever read on this forum. How can you be so presumptuous that other gear would suffer from the same problem as your Linn?

Last edited by sejarzo; 03-27-2008 at 07:35 PM.
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Old 03-27-2008, 07:32 PM   #17 (permalink)
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Originally Posted by JohnFerrier View Post
Your source doesn't seem like it mets decent specs. I can't tell if my system is on or off, until I hit play.


.
Dude, did you read my signature? The Linn Akurate is considered one of the best CD players on the market.
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Dynamic Amp--Ray Samuels B-52
Electrostatic Amp--Rudistor Coriolan 2
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Old 03-27-2008, 07:35 PM   #18 (permalink)
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Originally Posted by sejarzo View Post
I have no idea at all what you are hearing.

With my SA8001 feeding my CK²III into HD600's.....nothing playing......level of the CK²III maxed......I hear nothing. Nothing at all regardless of where I set the volume.

With my 0404 USB feeding the same amp and headphones......connected via USB......no player app running......I hear nothing.

That claim in bold is the most preposterous piece of rot that I have ever read on this forum.

Meh, go easy on him...the kid probably had some kind of ground loop, had a 2 minute conversation about digital noise, then swapped powercords and corrected the problem. Then got excited, exagerated the claim about the 'holy grail' and now is on the defensive.
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Old 03-27-2008, 07:35 PM   #19 (permalink)
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over and over and over and over, like a monkey playing minature cymbals
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Old 03-27-2008, 07:36 PM   #20 (permalink)
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Wow, people are getting defensive. The interference, like any interference, may not show up if you live in the middle of the woods, so maybe I should have clarified that this may not happen to EVERYONE. But plenty of people do have this problem, and plenty of head-in-the-sand types refuse to believe that power cords can change sound. Am I going to have to invite people over to my house to proove this?
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Vinyl--Sota Nova table, Dynavector DV507mk2 tonearm, Dynavector DRT XV-1S cartridge, Ray Samuels XR-10B phono stage, Loricraft PRC4-Deluxe record cleaner
Dynamic Amp--Ray Samuels B-52
Electrostatic Amp--Rudistor Coriolan 2
Headphones--too many to list; current favorites are Stax Omega 2 and Edition9
Cables--Shunyata Anaconda from the wall; Shunyata Python VX to the CD player; the remainder is Cardas
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