Plantronics Audio 90 headset and the Sony Stereo Headset for PC, street style design DR-G250DP. I was just wondering if the sony headset had the same quality sound as the plantronics headset. (i have the plantronics headset)

i recently purchase a mic headset for my computer. I am very amazed at the quality of the music. It has a more deeper bass and good vocals too. i was wondering what exactly makes the headphones sound so good? so i can look for same specifictions on my next purchase. i was wondering which one was...