This is what was being used:
<a href="{$_conf['jrCore_base_url']}/audio/djdownload/audio_file/{$item._item_id}" title="download">
updated by @dazed: 12/07/13 06:59:44AM
<a href="{$_conf['jrCore_base_url']}/audio/djdownload/audio_file/{$item._item_id}" title="download">