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Dealing with unbalanced input 500 series api 500 Series EQ\'s
Old 30th July 2014
  #1
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Dealing with unbalanced input 500 series api

I just got a pair of original api 550 eq and also reissue 550b eq but an older version that is unbalanced at input stage.


I haven't gotten around to ordering the connecting cables for the lunchbox yet and I will soon so I can't really test it but I was wondering how I should deal with the unbalanced thing. I am mixing out of an apogee symphony system then back.

I know I can use a preamp to balance it before (or I think after) but have also heard that there is a Jensen transformer box which balances it.

I'm not super tech savvy so I was wondering if people in similar situations can comment on their thoughts on this topic and what would be best for me.
Old 1st August 2014
  #2
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Bump on this.. @ moderators: why'd this get moved from "High end" sub forum? Everything mentioned is a high end product.

Can I appeal this? Lol
Old 4th August 2014
  #3
Appeal granted. Moved back to High End, one of these cats will know.
Old 6th August 2014
  #4
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thanks whitecat! now bump!!
Old 6th August 2014
  #5
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hasbeen's Avatar
Chances are good that this will not be a problem in most cases. I use unbalanced preamps all the time. I use short cable runs to my converter.

If there is a problem I have a few DI boxes and a rack unit that does the job. There are quite a few different options available for purchase and many are not that expensive.

Have you tried connecting it yet? Any noise, buzz issues? If it sounds good then go for it!
Old 7th August 2014
  #6
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127Riot's Avatar
 

I have a rack of old vintage api 550's, I never had any balancing issues on front end or mix down.
Old 7th August 2014
  #7
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nosebleedaudio's Avatar
 

The older 525 was also Unbalanced..Not much room left...But yes, IF you are driving it with a Pre with a Transformer output then it should be OK..
Old 8th August 2014
  #8
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Quote:
Originally Posted by 127Riot View Post
I have a rack of old vintage api 550's, I never had any balancing issues on front end or mix down.
you are using it in a hybrid setup with adda converters?
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