Do I have a case for permanent hearing loss sustained as a musician-for-hire in a church service 4 years ago?

In January 2013 I performed as a musician-for-hire for a church service in Wisconsin. During the service, I sustained permanent hearing loss and tinnitus because of unexpected increased loudness of the sound system despite my proper use of hearing protection. A hearing evaluation following the service verified the hearing loss, but with the possibility that the hearing loss and tinnitus may not be permanent. The hearing loss and tinnitus have not subsided and are a detriment to my current and future livelihood as a professional audio engineer and musician and my personal life. I believe I've exceeded the statute of limitation, but would like to know if I have a case worth pursuing. I did not pursue legal action earlier because I was worried about how suing a church would affect my professional and personal reputation in the community.