I was very happy with my line 6 wireless system when I bought it from guitar center in 2013. After the first month of owning it, it had audio problems. I sent it back and it was promptly fixed. The transmitter has always had little ticks (signal and audio dropouts,self muting etc.) A couple of months ago the transmitter stopped working. The receiver shows full battery level and rf signal, but no audio meter on the receiver. If you mute the transmitter, it will indicate with a red flashing light on the audio meter (which is normal functionality) I removed the capsule and tested the contacts. I got sound from the contacts which gave me the idea that the capsule was malfunctioning. I purchased a new capsule and updated the firmware on both the transmitter and receiver.There is still NO AUDIO and NO AUDIO METER on the receiver. I created a support ticket and promptly sent the capsule back. I got a confirmation email for my support ticket and NO response. Upon following the link on the confirmation email today it appears my ticket has been deleted. I'm beyond at my wits end with line 6 at this point. I would love to have a wireless for my tour. If I do not get help here, I will switch back to Sennheiser,