I use the Sony MDR V6's which were the older version and same price but not quite as sizzly. I just looked them up on Ebay and they're going for $250-$350. I was shocked! The 7506 are a little brighter. But both pairs allow you to listen at a very low level and still hear what's going on in the upper frequencies. Those type of headphones are hard to find these days because everyone wants tons of low end which I find too muddy to make judgements on. The V6 and 7506 were a standard in the studios for many years. $99 is a great deal.