Hi Rebbi,
I also have the Totem Arro. I use them with a 35 watt tube integrated and an Onix XCD88 player that, incidentally, is supposed to be internally identical to the Music Hall CD25. Imaging and soundstage are definitely the Arro's forte in my system, and the room placement is not optimal (I have them about two feet from a side wall and one foot out from the front wall, no toe-in). I also use crappy cables almost exclusively. Still, I do notice that the soundstage is enhanced at the expense of bass response if I move the speakers at least two feet into the room and away from side walls, so that may be something you should try out.
I bought mine used, so I can't give you any advice regarding break-in.
FWIW, I found that swapping out small signal tubes usually nets noticeable effects regarding soundstage and imaging, so this maybe something you should consider experimenting with.
I also have the Totem Arro. I use them with a 35 watt tube integrated and an Onix XCD88 player that, incidentally, is supposed to be internally identical to the Music Hall CD25. Imaging and soundstage are definitely the Arro's forte in my system, and the room placement is not optimal (I have them about two feet from a side wall and one foot out from the front wall, no toe-in). I also use crappy cables almost exclusively. Still, I do notice that the soundstage is enhanced at the expense of bass response if I move the speakers at least two feet into the room and away from side walls, so that may be something you should try out.
I bought mine used, so I can't give you any advice regarding break-in.
FWIW, I found that swapping out small signal tubes usually nets noticeable effects regarding soundstage and imaging, so this maybe something you should consider experimenting with.