For me Q40 is a lot better than LP2, I stopped using my LP2 after about 1 week. Too veiled highs and the bass bleeds a bit too much into the mids, probably the bass quantity is a bit too excessive.That having said the midbass especially in them thumped like crazy, drums for example had a very high impact. TBH though, LP2 is overpriced SQ wise, a more fair price would be 100~$125, SQ-wise alone I think it's worth ~$75 (A slightly improved XB500, same signature) but the nice build obviously raises the value. Q40 on the other hand I'd rate more like $150-200 SQ-wise subjectively.
Edited by RPGWiZaRD - 5/16/13 at 10:16pm