I have a design which needs to use 4 x TPA3112D1 amplifiers to supply 4 separate speakers. I want to use one DAC PCM5100-Q1 as the audio source which can drive any combination of the 4 amplifiers which will depend on the /SD state of the amplifier. So, I may want to play a message on just one speaker or possibly on all 4 speakers.
Is is possible to connect the output of the DAC directly to the INP of all 4 amplifiers. So, the INP of all 4 amplifiers will be tied together and supplied from one DAC. What considerations need to be made if this is possible?