Pretty neutral sounding with punchy bass. It's a small near field monitor set. Near Field just means optimal placement is close enough where you can reach the front controls. It will not really fill up a room though and bass doesn't have the energy to go beyond about 2 meters. I have used my WM1z and iFi iDSD Sig and both sound fine. It does have 3.5mm input but is located in the front of the right speaker. another cool feature is that it has headphone output too so you can leave your NW50 plugged in. Very versatile. The only thing that I wish it had is a way to disable the stupid start up sound every time I turn it on. It's pretty loud. But since it's class D amp, I just leave it on 24x7 so I don't have to deal with startup. There is also an auto standby mode if it doesn't detect sound input for 20 min, but you can disable that.