11-18-07: Jrw40
im wondering if a set-up offers single ended and balanced ins and outs can it be fully balanced?
Can it be fully balanced? Yes
Does having balanced in's and out's mean it has to be fully balanced? No.
Some manufacturers offer balanced inputs and outputs for convienience, but they tie the negative (-) leg to ground inside the chassis and have single ended internal circuitry, not that there's anything wrong with that. However, the appearance of XLR connectors on the rear apron of the unit does not necessarily mean it is a fully differential unit. For it to be fully differential, it must have mirror interior circuitry for both the positive AND negative legs. This can become pretty expensive, and the results are not always audible. Hence I would say that most equipment is single ended, though some single ended gear will have balanced inputs/outputs.
There is little technical info on the internet about Cairn gear, but from what I can find, it looks to be a single ended design with optional balanced inputs and outputs.
Cheers,
John