"Dave Plowman (News)" wrote:
I can see that. Just odd I've never seen it used before.

FWIW it's not wrong to use separate capacitors V+ to 0 and 0 to V-, but
effectively what you have there is half the capacitance from V+ to V- and
double the ESR, so you're adding components to make it worse. It might make
sense where there are single-rail loads running between V+ and 0 - for
example digital logic, which are more the kind of thing decoupling
capacitance is intended for (high frequency switching loads rather than
general audio ripple).

Theo