Korg Forums

Hi, I have a problem.
For some reason the left output on my ESX is playing probably only on 20% compare to the right one. I have tried everething...different cabels, mix ect...
Could it be a short-circuit/fault because i could have used a bad connection OR some connection in the machine just BROKE, is that possible? Can it be fixed somehow?

this link might help you.
the problem should be the balancing knobs.

http://www.bukisa.com/articles/13993_ho ... sx-and-emx

if its not the balancing knobs, then i don't know.

good idea, didnt think of that, iLL try it thx lot>]]

oldboya wrote:this link might help you.
the problem should be the balancing knobs.

http://www.bukisa.com/articles/13993_ho ... sx-and-emx

if its not the balancing knobs, then i don't know.

I have the same problem with mine, though the difference isn't as great as yours. On my EMX it's the tubes... most preamp tubes are not matched, so they have different gain ratings. I have a lot of these tubes from my guitar days that I experimented with and could not find a balanced pair. I make up for it by panning slightly to the left in my mixer.

I read the article posted about changing tubes and found by my own experiments that the "balance knobs" do not affect the output of the tubes (they had very little perceived effect on the sound).

You'll probably want to try some new tubes. Sometimes you can tell if a tube is bad by tapping on it lightly (after removing it from your ESX)... it will sound kind of hollow, or have a slight rattle like a broken light bulb. Good tubes feel and sound solid when you tap on them.

I hope you solve your problem... tubes can be a pain, but they do add a nice, fat compression to the electribe (I keep my tube gain at 1/3).

Thanks for advice:)). Your probably right, I might just buy new ones after like almost 3 years with these ones.

yell tennis wrote:I have the same problem with mine, though the difference isn't as great as yours. On my EMX it's the tubes... most preamp tubes are not matched, so they have different gain ratings. I have a lot of these tubes from my guitar days that I experimented with and could not find a balanced pair. I make up for it by panning slightly to the left in my mixer.

I read the article posted about changing tubes and found by my own experiments that the "balance knobs" do not affect the output of the tubes (they had very little perceived effect on the sound).

You'll probably want to try some new tubes. Sometimes you can tell if a tube is bad by tapping on it lightly (after removing it from your ESX)... it will sound kind of hollow, or have a slight rattle like a broken light bulb. Good tubes feel and sound solid when you tap on them.

I hope you solve your problem... tubes can be a pain, but they do add a nice, fat compression to the electribe (I keep my tube gain at 1/3).

Ok, if i plug the left output all the way in and the right one just half way the L/R is ballanced...WTF how is that possible??

jony wrote:Thanks for advice:)). Your probably right, I might just buy new ones after like almost 3 years with these ones.

yell tennis wrote:I have the same problem with mine, though the difference isn't as great as yours. On my EMX it's the tubes... most preamp tubes are not matched, so they have different gain ratings. I have a lot of these tubes from my guitar days that I experimented with and could not find a balanced pair. I make up for it by panning slightly to the left in my mixer.

I read the article posted about changing tubes and found by my own experiments that the "balance knobs" do not affect the output of the tubes (they had very little perceived effect on the sound).

You'll probably want to try some new tubes. Sometimes you can tell if a tube is bad by tapping on it lightly (after removing it from your ESX)... it will sound kind of hollow, or have a slight rattle like a broken light bulb. Good tubes feel and sound solid when you tap on them.

I hope you solve your problem... tubes can be a pain, but they do add a nice, fat compression to the electribe (I keep my tube gain at 1/3).

jony wrote:Ok, if i plug the left output all the way in and the right one just half way the L/R is ballanced...WTF how is that possible??

are you using the same type of leads in both? or is one mono and one stereo?

Yeah, i think Pastor of muppets is onto it. Make sure that both leads are mono jacks (only 2 connections on the jack), if your using the L-R outputs.
If that doesnt rule it out use a stereo jack in the headphones socket to check if the output is balanced on that, if it is ok then it may be a problem with your mono leads/ L-R outputs.

What are you plugging it into? is it phono on a mixer or stereo jack/mono jack on an amp?

If the headphone stereo jack is not balanced either then it may be a problem with the balancing of the tubes. But i think this is the least likely issue.

no, both the same...

Pastor-of-Muppets wrote:

jony wrote:Ok, if i plug the left output all the way in and the right one just half way the L/R is ballanced...WTF how is that possible??

are you using the same type of leads in both? or is one mono and one stereo?

well the headphones are out of ballance aswell...i plug it to i phono on a mix. I even changed the tubes and it did the same, there must be a problem inside the L/R, but i just dont understand how come its ballanced when the R jack is only half way in....

harvestein wrote:Yeah, i think Pastor of muppets is onto it. Make sure that both leads are mono jacks (only 2 connections on the jack), if your using the L-R outputs.
If that doesnt rule it out use a stereo jack in the headphones socket to check if the output is balanced on that, if it is ok then it may be a problem with your mono leads/ L-R outputs.

What are you plugging it into? is it phono on a mixer or stereo jack/mono jack on an amp?

If the headphone stereo jack is not balanced either then it may be a problem with the balancing of the tubes. But i think this is the least likely issue.

Maybe when the jack is half way the resistance of the connection is lower, i dunno.
when you changed the tubes did you use the balancing adjustment pots on the board? You can output a pure sine wave, then change the pots value to balance it up.
Apart from that im out of ideas im afraid.