I am happy I could be of help. You could get a fiio e10k if you want to get something good without paying much (the refurbished ones from ebay are infact just second hand and cost 50€ in EU). Otherwise if you'd like to pay more for higher volume and better sound you could go for a dac, amp stack (best ones that come to mind for their price is topping l30 2 and e30 2 and cost about 300). I should note that any higher than that would be argueably not better in the range of human hearing and the e10k would not have that much difference aside from volume.