First off, I'm a professional musician and a great lover of all types of music. When I'm not listening to my main home system, I'll put my headphones on and dig out my portable high resolution music player. I use the audio technica ath m50x just like in the studio. They sound great, and natural. But I wanted something that would travel well. After very careful research, I chose the 1more triple drivers and they didn't dissapoint. When I noticed the 1more quads on sale for $99.00, I just couldn't resist. Well, the difference was dramatic especially in the low end. Not overpowering, but the deep notes are definitely their. I highly recommend the 1more quad drivers even at their regular price. I guess the only thing I wish they had were replaceable cables. But I'm pretty careful.