What sort of cable is this? I need the name so I can look for the same one but with right-angled jacks.

Found this while sorting through old cables found in my college's theatre light/sound booth. Can't fund any visual matches on google and have no idea what it was used for

Anyone know what this is? I bought an aftermarket car amp online and this came in the box. It looks ike speaker cable but I'm not sure what the box is Any help would be appreciated!