[jpalenzuela]

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It can depend on the particular implementation (I'm not familiar with the Ibasso you have in min) but generally speaking yes, Wolfson's are generally considered to be slightly warmer sounding and more 'musical' than most others... and usually better suited to analytical headphones like Grados if you feel some warmth would improve things for you.

Tube amps will usually add add even more warmth.

Don't rush into things, just keep reading reviews, try and discern what sound sig you'd like, what amps are best suited to your headphones and Sound sig preferences and choose something accordingly.

Good luck!

Thanks for the help.
I finally choosed to buy the D42 and the Vali tube amp. This combo should also work well with MS2 that I will upgrade in near future.