This review will only talk about comparison between the MD with Dog Pads and the previous MD (with Shure SRH-840 pads). I found each version has their own unique sonic characters. So it's more to your preference. But it took me 3 hours of sitting down and thinking hard, before I finally made the purchase of the Dog Pads version. Here's why... The 840 version has a more forward and brighter sonic, thus making the midrange (especially for vocals) very special. However it fell short in the bass section. There is bass, but just adequate in amount...