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Old 15th January 2014
  #14
Gear Head
 

I own a pair of 660s. I also own and use some of the better units available both new and vintage. The 660 is very fickle to adjust, to the point of being super irritating. That being said, it has a unique sound especially on vocals that is unmatched by anything else I have ever used (including that other 660 people like by Fairchild which btw there is only a vague relationship at best). It brings a hi fi version of the meat of a vocal (especially in males) out in the most incredible way. Once you get it, there is no substitute.