MAX9792 input levels

I'm designing a portable/mobile circuit using MAX97292 to amplify the output of a DAC.

I need to keep the circuit the more compact as possible (this's one of the reason I'm using MAX9792 because it doesn't need large output filters its outputs).

I would also like avoid using active components between DAC and MAX9792 inputs if possibile.

DAC application note prescribe to put some high frequency filters and a DC blocking capacitor on its outputs. MAX9792 require an RC filter on its inputs (DC blocking caps).

I would like to undestand if such a passive network will fit the needs and if input levels are matching MAX9792 needs. So I decided to run a simulation (AC sweep between 20Hz to 20KHz).

This's the simulated circuit:

Of course V1 and V2 are the outputs of the DAC while the opamps on the left side are a simulation of the internal network of MAX9792.

The resulting simulated output is something like that:

I think is coeherent since all MAX9792 inputs (SPKR_In, HP_INL, HP_INR) all levels  on -3.6dB (half the input level?).

To achieve such levels I needed to replace the recommended 40.2k resistors on HP_INL and HP_INR lines and put 20k resitors (like those on SPKR_IN)... is this correct?

Since caps prescribed for SPKR_IN, HP_INL, HP_INR inputs are required for the same purpose of those on DAC output is possibile to remove them?

They are fairly lower than those on DAC output...