Yaqin VK-2100 Static from one channel

aclimbatize · 29th May 2011, 05:27 PM

Hey, so I've had a Yaqin VK-2100 for over a year now and a few months ago I started getting this wierd intermittent static from one channel. It doesn't matter what volume it is set to, doesn't matter which aux input i have selected, I have trouble shot and made sure it is not the one speaker. It seems to get more constant and more annoying as the amp warms up. I have also moved around the tubes to make sure it's not a bad tube. Any thoughts?

Thanks in advance for any advice.

Hi-Q · 30th May 2011, 12:43 AM

You could try pulling the tubes from the affected channel before switching the amp on, if the noise is still there then it indicates a problem in the solid state output circuit rather than the tubes.

Rockmore · 30th May 2011, 01:27 AM

Had the same problem, only moderately fixed. - Switch the cheap pre-amp tubes around to different sockets. Mine were crappy from the start and replaced with JJ's. -Find the massive VK-2100 thread here and other boards on how to adjust the bias and output levels. I still, at times, get the same "static noise" problem you have usually at power up. Mine slowly goes away as it warms up and is in use.

Rockmore · 30th May 2011, 01:28 AM

***Still need a separate, specific forum just for Yaqin (Yaoin) audio tube products...

aclimbatize · 2nd August 2011, 12:57 AM

SO, I got new tubes and they sounds great, but now I have one channel that is clearly louder than the other. I can adjust the balance on my computer and the sound is great when I set it so that the balance is further to the right channel. But it seems I shouldn't have to do this right? I should be able to have the balance set to default and not have one side be louder than the other. I have tried all the troubleshooting I can think of: switched tubes, switched speakers, switched cables, switched input source, etc. I have narrowed it down to the amp, but what in the amp could be the issue?

aclimbatize · 13th August 2011, 03:57 AM

anyone?

29th May 2011, 05:27 PM	#1
aclimbatize diyAudio Member Join Date: May 2011	Yaqin VK-2100 Static from one channel Hey, so I've had a Yaqin VK-2100 for over a year now and a few months ago I started getting this wierd intermittent static from one channel. It doesn't matter what volume it is set to, doesn't matter which aux input i have selected, I have trouble shot and made sure it is not the one speaker. It seems to get more constant and more annoying as the amp warms up. I have also moved around the tubes to make sure it's not a bad tube. Any thoughts? Thanks in advance for any advice.

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30th May 2011, 12:43 AM	#2
Hi-Q diyAudio Member Join Date: Oct 2007	You could try pulling the tubes from the affected channel before switching the amp on, if the noise is still there then it indicates a problem in the solid state output circuit rather than the tubes.

30th May 2011, 01:27 AM	#3
Rockmore diyAudio Member Join Date: Jun 2009 Location: Red, White, and Blue USA	Had the same problem, only moderately fixed. - Switch the cheap pre-amp tubes around to different sockets. Mine were crappy from the start and replaced with JJ's. -Find the massive VK-2100 thread here and other boards on how to adjust the bias and output levels. I still, at times, get the same "static noise" problem you have usually at power up. Mine slowly goes away as it warms up and is in use.

30th May 2011, 01:28 AM	#4
Rockmore diyAudio Member Join Date: Jun 2009 Location: Red, White, and Blue USA	***Still need a separate, specific forum just for Yaqin (Yaoin) audio tube products...

2nd August 2011, 12:57 AM	#5
aclimbatize diyAudio Member Join Date: May 2011	SO, I got new tubes and they sounds great, but now I have one channel that is clearly louder than the other. I can adjust the balance on my computer and the sound is great when I set it so that the balance is further to the right channel. But it seems I shouldn't have to do this right? I should be able to have the balance set to default and not have one side be louder than the other. I have tried all the troubleshooting I can think of: switched tubes, switched speakers, switched cables, switched input source, etc. I have narrowed it down to the amp, but what in the amp could be the issue?

13th August 2011, 03:57 AM	#6
aclimbatize diyAudio Member Join Date: May 2011	anyone?

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