Presonus Eris Studio 5

I tested the speakers out, they can produce almost 35 Hz. That is the difference between old Eris e5 speakers and these studio models. Additionally, the eq on the back panel provides you with a relatively fine solution for the disadvantages caused by untreated room.
There is no electric-related noise, I use balanced cable. There is only a little bit of hiss sound but it's only audible when you position the speakers at less than 40 cm. My placement is a triangle with 1-meter distance. So I don't hear that hiss sound.
I'm glad that I have bought them.