T560 distortion only on one channel

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T560 distortion only on one channel

Unread postby asqus » Sun Apr 09, 2017 7:57 am

Hey all,

I've started getting some distortion on my cuts, but only on the left channel. It's most noticeable on kick drums and on sibilant vocals, but the surface noise also sounds a little higher on the left channel.

Any ideas what could be causing this? Is it a calibration issue perhaps?
asqus
 
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Re: T560 distortion only on one channel

Unread postby Ben » Tue Apr 11, 2017 1:44 pm

Hey There,

I suggest you check your diamond on the microscope, 2 times I had distortion on 1 side only and it was because my diamond was done.
The other thing that happened to me was also a burned preamp in the mixer. It also happened to me that I had a bad rca splitter which was sounding like crap.
I'm not connecting my main unit with that splitter anymore... and it's way better for me now.

Check also if you have plastic melted on your stylus, that stuff can do damage also. Acetone really help for that... but careful not to melt the glue for the heating wire

That's the only thing I can share from personnal experience.
Hope you find the problem
Ben
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Re: T560 distortion only on one channel

Unread postby asqus » Wed Apr 12, 2017 2:41 am

Thanks Ben - this is incredibly helpful!

The diamond looks fine, but I'm suspecting that the mixer may be the issue. It's also been randomly dropping the volume of one channel every now and then.

A
asqus
 
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Re: T560 distortion only on one channel

Unread postby markrob » Wed Apr 12, 2017 9:34 am

Hi,

One quick way to narrow that down would be to connect a speaker(s) instead of the cutter head to your power amp outputs and have listen. If its not distorted from the speaker the problem lies in the head and/or stylus. Note that it will sound very bright due to the RIAA and head EQ, but it should still be clean.


Mark
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Re: T560 distortion only on one channel

Unread postby asqus » Wed Apr 12, 2017 9:37 am

Thanks Mark - will give that a try!
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Re: T560 distortion only on one channel

Unread postby David34 » Tue Apr 18, 2017 5:43 am

Have you tried cutting a silent groove with no audio?
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Re: T560 distortion only on one channel

Unread postby asqus » Fri Apr 21, 2017 12:44 pm

It turns out that there's something wrong with the left channel of my mixer (the one used to toggle between previewing source and cut record). It starts off fine but then after a few minutes the left channel drops about 18db and the sound distorts.

The good thing is that it's not affecting the cuts as it's just the playback channel, but it's obviously pretty difficult to cut well if the playback is so distorted.

Any ideas on what could be causing this mixer issue? Should I just get a new one? Is it perhaps some weird grounding issue/something?

Thanks for all the tips so far by the way!
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