There is a joke on the Ampache irc channel, whenever someone asks for a feature Vollmer always response sure make it an option. To a degree this is a true statement. Ampache strives to have sane defaults while providing the ability to change the configuration to meet a majority of peoples needs. Ampache has two main locations for its config. The Config file located at /config/ampache.cfg.php and the Database preferences which are per user and modified via the web interface. You can find detailed information in the wiki documents listed below.