How to Align Subs in PA Systems using the Waves Sub Align Plugin

Sub Align: http://www.waves.com/plugins/sub-align?utm_source=ytd&utm_medium=referral&utm_campaign=beROwXk55xQ#image Watch this in-depth demo and learn how to improve your live sound by controlling the subwoofer frequencies in PA systems where the subs are tied in with the tops and you have no access to the system processor