ashgallows
resonant manipulator
if you switched monitors, the hs80's are almost certainly more accurate tonewise...more than A7's imo. they might have less bass then what your used to in that mixing position. If it is affecting your mixing, then maybe play a record you know well and eq the monitors so it sounds correct. Another thing is monitor phasing. "Mixing with your mind" had a great article about this. push the monitors together and have a rich stereo source going in them slowly pull them apart envisioning a band between them it will appear to bow and stretch as you pull and push them the idea is to find a position where the band is perfectly straight, then angle them into your mix position.
