View Single Post
  #21   Report Post  
Posted to rec.audio.tubes
Eeyore Eeyore is offline
external usenet poster
 
Posts: 8,474
Default Design for a small tube/valve mixer



Ian Thompson-Bell wrote:

Eeyore wrote:
Ian Thompson-Bell wrote:
Eeyore wrote:


Most inserts are unbalanced these days.
Bloody hell.


Not on very high end studio-only gear like Neve but almost everywhere else.


OTOH you can make a balanced
insert using an LME49720 op-amp for a few dollars that will be as audibly
transparent as is possible.
Balanced but not floating I guess?


Define what you mean by floating ?


Yes, it means galvanically isolated. Floating was the common term used
at Neve in my day.


It's not explicitly used to mean that any more. Today it means it'll tolerate
some common-mode voltage.

Transformers are the work of the devil you see. They must be avoided at all
costs. Plus they cost a vast amount for decent ones.

Graham