Hi guys, i plan on buying 2 Tannoy 502s and a sub ts 2.10, my question is, how do i connect all that to the pc? Do i need a sound interface like, for example, Focusrite Scarlet 2i2? That one or a different one? Also, i have 4 passive speakers(not monitors) atm, 2 for each channel(left and right), 2 go at the front and 2 at the rear, and they are plugged to a sub that powers them, is there someway to add 2 of them to the tannoys? It all confuses me so much lol Thanks for the help!