I am not sure what you are asking.
Your player will only output 2 channel analog and not multichannel.
To get multichannel from that player, then you need a pre/pro or a receiver with a DSD decoder. A lot do not have that.
You do not have to use auto Eq programs you can turn them off.
As far as quality, you will not hear a difference between CD and SACD on 2 channel. The dynamic range of SACD is greater and there is the odd disc where this counts and the CD is more dramatic as a result.
For most multichannel SACDs the surrounds are only reproducing ambiance. However there are some that have antiphonal music.
The next issue, is that some SACDS need the rear backs and not the surrounds to play. For instance Pentatone have released many of the old quadraphonic recordings on SACD. This requires the right and left fronts and the rear backs to operate. Also many European SACDs need the front three and rear backs.
If you think SACD is a mess, you would not be wrong. That is why it is pretty much a dead format. Audio only BD has never really caught on, but it should. BPO discs are produced in this format. That is more flexible, as the mix engineer can decide what to put on any given channel.
So I have an SACD player connected via multichannel analog outs so the rear backs play and not the surrounds. I have a Sony BD player that plays SACDs also that is connected via HDMI, and uses the pre/pro's DSD decoder. In that case you get front three and surrounds always.
It is all an interesting exercise, especially if, like I do, I have a lot of legacy equipment. Is it really useful and practical no. SACD was basically misbegotten from that start. It all started as a sop to audiophools who were too stupid to understand PCM. No one masters, or even records in DSD any more. It is a huge pain to work with. So for sometime, it has all been PCM and conversion to DSD right at the end at mastering.
It has been a pity it ever saw the light of day, as it basically has set back multichannel audio, and probably permanently. As far as I'm concerned DSD (SACD) has been one of the audiophools most egregious sins.