Hi Brian,
The short was between the Speaker + and the Speaker - terminals (pins) of our custom board. This was due to an incorrect pinout of a common mode choke. Hence the speaker + and the speaker - terminals had a short thru eachside of the choke by choke inductors.
The Choke used is a ACP3225-102-2PT. Since this device is implemented to mitigate EMC, for Audio frequency range it looks as a short.
The design does not have a LC filter since I am enabling the spread spectrum feature of this codec.
Does this clarify your questions?
Thanks,
Eric