On 2011-03-02 12:50 -0800, David G. Dixon wrote: > It's only meant to protect against the loss of the negative > rail, and only for the benefit of the 2164s (nothing else > really cares, as far as I can tell). According to _Small signal audio design_, the 5532 can self-destroy if it loses either rail. -- André Majorel http://www.teaser.fr/~amajorel/