What should I go for?

[David91]

Hi to all the shi fus here  I'm currently using tangent's bookshelves speakers evo4 paired with the aego m's subwoofer ..

I'm running them using my pc-aego m sub-evo4..

I'm thinking of getting either a new sub around the range of 200+

And would a audio engine dac-1 help in my current setup?