Buy a FiiO K5 pro, it has a built in DAC and Amp in one device and you're good to go. Don't go with Toppings they are terrible. The treble sounds so harsh on toppings it is as if they boosted treble and bass to get that artificial clarity and dynamic punch.

Edit: Or if you're in the US perhaps Schiit products would be a better pick than Chi-fi products. Get a magni+modi stack or if you want an all in one solution (with DACs and amp inside), Schiit Fulla & Hel will do a great job.