Best thing: get a small POWERED system with a sub for bass; Logiteck is a good example.
(about 80 some odd bucks new for a good starter sized system)
https://www.amazon.com/Computer-Spe...71,p_n_feature_keywords_browse-bin:2883362011
(here is a list of examples to give you the idea)
Your computer has a headphone amp only and will drive head phones or similar sized speakers.
You could also go with surround ( 5.1 ) for a couple bucks more, but I find even stereo with a sub (2.1) does a fine job.
Newer computers have HiDef sound and with even a reasonable output system you can get pretty good sound cheap if you want to.
You want super sound, look into a software player like "Fubar 2000" which will play SACD sound files which are often "better then tape", and plug in some decent speakers.
http://www.foobar2000.org/
Any questions, feel free.