Blackstar HT-60 Soloist speaker remplacement and Fender Blues Jr

Sorry for my english, i speak better in french but i need an anwser

I have a Blackstar ht-60 soloist since 1 year. I'm really not a fan of the seventy 80 for many reason and like many others.

I need a warmer sound with more mids. I'm a Blues/Jazz/Rock player and i like the color similar than John Mayer, Robben Ford, Joe Bonamassa, Larry Carlton, Santana...

I used Les Paul Style Guitar and Fender Stratocaster Style Guitar.

I need for my blackstar Ht-60 Soloist a warmer, rounder and biggest sound. No kidding, my Fender Blues Jr is warmer in some situations.

I'm not really shure why but my feel is stop to an ET65 or a Liberator 80. 

What do you think, Do you have an other suggestion or it's possible for you to help me to do the right choice with more information about the right speakers ?

By the way, do you have a suggestion for speaker remplacement for my Fender Blues Jr?  It's possible to have similar sound than a two rock, not exacly like, but similar ?

Thanks for responses and sorry for my poor english