Hi and thanks for reading this. Sorry if this is a duplicate and if so please link the best post. I would really like to up my knowledge about audio and become more of an audiophile. I have a very basic understanding of sound from a computer science degree and will outline what I know below: Audio is a wave differential of air pressure which vibrates the ear drum and allows us to hear. This is measured in a frequency known as hz and humans can only hear sounds within a specific range. Audio which is digitalised measures which hz the sound is at for a specific point in time and the bit sampling rate determines how accurate this is to the analogue signal. I also know a bit about sound file compression such as how MP3 is compressed and losses some of this data vs Flac which is uncompressed and is closest to the analogue signal. I do have some question and would appreciate if anyone can link any posts or material to answer them. I am wanting to buy a better set of headphones (current pair mainly for gaming is Audio technia ath-g1) and was thinking of upgrading to either the sennhiesers HD 660s or the HiFiMan Sundara. After looking at a few reviews I hear a lot of terms which I don't understand and would like clarified below: Low Mids Highs Bass (got a good idea that is the depth if sound such as an explosion of beat if a dream) Treble I have also heard the term warm being used but unsure what it refers to. As a said I have a basic knowledge of Audio and would like to improve it. If possible can you link material or give an explanation of the terms above and add any more you think are relevant. Sorry for such a long post and if you have made it this far I appreciate it