This is from a customer who asked us this question and we liked it so much we are posting it here:
" The Eris E3.5 BT or E4.5 BT 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 Eris E3.5 BT or E4.5 BT speakers are voiced any differently or behave any less-directional than near-fields such as the Eris E5? The information in the configuration guide seems more applicable to studio monitors used for mixing (i.e. equilateral 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 Eris E3.5 BT or E4.5 BT speakers are based on our Eris line of studio monitors. Since studio monitors are designed to provide extremely accurate sound, Eris E3.5 BT or E4.5 BT speakers give the listener a very detailed reproduction of the program material.
Granted the tuning of the Eris E3.5 BT or E4.5 BT is modified relative to Eris in order to accommodate the design, such as the grilles over the woofers. The internal volume of the Eris E3.5 BT or E4.5 BT enclosure is different in order to handle the Bluetooth electronics. However we have tried to keep Eris E3.5 BT or E4.5 BT 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 Eris E3.5 BT or E4.5 BT 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.
Please contact PreSonus Technical Support by creating a Support Ticket at My.PreSonus.com for further assistance.