Images Blurry on Soundcloud and Crop themselves in general
Installation and Configuration
The solution in the other thread is to go into jrSoundCloud_item_list.tpl add in a {debug} to see what variables you have available to you at that point, then see if any of the other variables are better quality. If there is one that is better quality, then use its name value instead of the current one.
These are images that come from soundcloud, so you're only going to be able to use a better image if they provide one to use.
the solution will be something like this:
<img src="{$item.soundcloud_artwork_url|replace:"-large.jpg":"-t500x500.jpg"}" .......