I'll venture an opinion on that. For those that have a critique of the LS50's, harshness or brightness in the upper registers is something mentioned. I owned the P7 and A21 and found them quite good, but one or the other did not reveal the last bit of air in music. I never noticed this immediately, and had speakers that were somewhat laid back, so it probably wasn't the best combination.
Anyway, what I've read on the Halo integrated is that it's dead neutral, so I think it would be safe to say any top end hotness would be limited to the music being played and whatever the LS50s might be doing.
Anyway, what I've read on the Halo integrated is that it's dead neutral, so I think it would be safe to say any top end hotness would be limited to the music being played and whatever the LS50s might be doing.