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Low buzz/hum in speakers with no music playing - same Options  Watch this topic  Print this topic  Atom Feed  RSS Feed View » Normal Threaded

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Russ White		#41 Posted : Wednesday, July 18, 2012 12:31:49 AM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		Try temporarily connecting the inputs of the IVY-III to GND. Leave the DAC off. If you power the IVY-III alone do you still get the Buzz?
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JGlacken		#42 Posted : Wednesday, July 18, 2012 12:51:17 AM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		I am afraid I don't understand what you are asking. Where are the inputs on the Ivy 3 and how do I tie them to ground?
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Russ White		#43 Posted : Wednesday, July 18, 2012 2:07:11 AM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		They are the headers that attach to the DAC. Labeled + G - connect + and - to G.
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JGlacken		#44 Posted : Wednesday, July 18, 2012 4:31:53 PM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		OK, I have hooked up the Ivy 3 by itself and I get little to no hum in either speaker. Probably from my tube amps. I now have much interference in both channels with now about half music although the left channel is going in and out. I have resoldered again the dac board etc and still the same. Have taken out the sidecar and hooked up to the spdif 4 directly and I get the same noise and partial music.
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JGlacken		#45 Posted : Thursday, July 19, 2012 12:24:03 AM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		What now?
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Russ White		#46 Posted : Friday, July 20, 2012 12:24:58 AM(UTC)
Rank: Administration Groups: Administration, Customer Joined: 10/24/2006(UTC) Posts: 3,979 Location: Nashville, TN Thanks: 25 times Was thanked: 89 time(s) in 83 post(s)		I am starting to think the problem is likely interaction with your amp.
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JGlacken		#47 Posted : Friday, July 20, 2012 2:57:13 AM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		I have Genesis M60 tube mono blocks.
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JGlacken		#48 Posted : Friday, July 20, 2012 1:42:45 PM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		It is not the amps. I switched in a solid state Parasound and the same problems exist. Jeff
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avr300		#49 Posted : Friday, July 20, 2012 6:34:14 PM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		How about trying to go all the way back - to before post #1, where you had the system running without the hum. Take the boards out of the box and see if you can get them to run silently.
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JGlacken		#50 Posted : Friday, July 20, 2012 7:00:43 PM(UTC)
Rank: Member Groups: Member Joined: 1/5/2012(UTC) Posts: 44 Location: Bluffton, South Carolina Thanks: 1 times		They are now running silently, but now the problem is the output is full of distortion and each channel goes in and out and the volume is very faint.
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avr300		#51 Posted : Saturday, July 21, 2012 10:02:18 AM(UTC)
Rank: Member Groups: Member Joined: 6/17/2008(UTC) Posts: 921 Thanks: 1 times Was thanked: 70 time(s) in 69 post(s)		Sounds to me like a short. You have to go over your soldering again. Carefully check for solder bridges.
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