Headphones

I have kingston's hyperx ii and this headphone's dongle provides better sound than apple's dongle, also motherboard sounds better than apple's dongle too.

In this situation does that mean hyperx ii's dongle has better dac than apple's ?

I was thinking buying fiio's K3 but im feeling like that wont provide any better dac too.

My ears are very sensitive and i play with equalizers often.