THE ERIS E3.5 BT

For the enclosure of both ERIS E3.5 BT speakers PreSonus has used vinyl laminated MDF (medium density fibreboard) which is resistant to both heat and scratches.

Each speaker measures 210mm in height, 141mm in width and 162mm in depth.

At the front of the left speaker, we find the volume control wheel, on/off switch and the aux in and headphones out 3.5mm jacks.

Build quality may not be out of this world but still it's very good, not only for the enclosures but also for the 3.5-inch custom woven composite woofer and the 1-inch silk tweeter.

Turning the speakers around we find bare wire connectors behind the right speaker and the bass/treble wheels, 6.35mm (1/4-inch) TRS jacks, left/right RCA ports, Bluetooth pairing button, bare wire connectors and the power port behind the left speaker.

Red to red and black to black is all it takes to connect both speakers with the bundled speaker cable (you can always use higher-quality speaker cables, even though i don't expect much impact in audio performance).

To properly test the PreSonus ERIS E3.5 BT i used my FiiO M15 hi-res music player (both wired and wireless connectivity) together with a couple of my smartphones (wireless) and one of my test rigs (wired).