I purchase the X2 Series Digital Wireless system on Jan 15th, 2009.  The 1st time that I used it, my sound became distorted after about 9 minutes.  I thought that I had a defective battery.  The next time that I used it it lasted about 3 songs and again the sound became distorted.  I thought that maybe I had a defective cable.  I set the rig aside and did't use it again for several months.  Last Sunday I set it up at home and attempted to use it,  Again the sound became distorted after about 3 songs.  I tried numerous batteries and each time the rig would work for about 3 songs before producing distorted, scratchy sound.

Randy