No, its a different brand - acoustic energy (Evo 1s), also british just like MA. Most audio forums say its really a tough nut to crack when it comes to break ins.
MAs also are quite a feat to break in, hence they made their own break-in CD to help accelerate the process.
Well I suggest you just continue to use your speakers either more often, or longer, or crank up the volume a bit more (or all of these 3) and just put up with the harshness, im sure it will disappear eventually
MA's (like most british speakers) are quite liquid and have not much 'harshness' so most likely your 'moderate' volume may still be too soft, or if that is not the case, the speakers need more time to breathe.