This is from a customer who asked us this question and we liked it so much we are posting it here:
The Ceres appear to be marketed as consumer stereo/device speakers although they say 'monitor' on them and in the literature. I have a personal recording studio and am familiar with the distinction between near-field monitors and speakers voiced for general room listening.
I'm curious to know if the Ceres speakers are voiced any differently or behave any less-directional than near-fields such as the Eris? The information in the configuration guide seems more applicable to studio monitors used for mixing (i.e. equiateral triangle, etc.) than for general listening. Are you recommending the Ceres speakers simply be set up as consumers would arrange ordinary stereo speakers or is there some way to optimize their performance?
PreSonus Ceres BT speakers are based on our Eris line of studio monitors. Since studio monitors are designed to provide extremely accurate sound, Ceres speakers give the listener a very detailed reproduction of the program material.
Granted the tuning of the Ceres is modified relative to Eris in order to accommodate the design, such as the grilles over the woofers. The internal volume of the Ceres enclosure is different in order to handle the Bluetooth electronics. However we have tried to keep Ceres speakers as accurate and detailed as the Eris studio monitors.
Of course speaker placement is always important so please be mindful of placing them close to walls and corners, if possible. But there is no need to set up your Ceres speakers in an equilateral triangle unless you want to. You can set them up as you would any pair of stereo speakers in order to accommodate your room.