Is this how I would add sub to a mono block setup with mini DSPS?

Hi,
So I will be adding some mono blocks to my setup soon, but given I will be also adding a sub looking at how the config would work.
Is this correct?

The gear I have is D90 DAC, svs pb-1000 sub and Revel m105. Will be getting 2x Behringer A800 amps

The final setup I could do, minus room correction is

Your speaker management (like the miniDSP) would be positioned like your first picture shows it, yes.

Thanks for that