Hello bros,need your help again.beware I'm an audiophile noob

Source : Laptop,Iphone,music .FLAC
Equipment : Denon AH-C710 IEM,HippoBox amp,ER4P to ER4S resistor adapter
Requirement : DAC? I like my sound bassy,but currently it is bassy enough,so maybe more clarity?
Budget : Max RM500

I'm enjoying the sound from my c710 with hippobox amp,and was wondering if there's anything i can do to upgrade the sound even better i came across DAC on my search,so was wondering if the bros here agree with using DAC to better my existing setup,and what's the recommended DAC? hopefully it is not too big as my current setup is quite portable