Feed 1 - KLAX Tower 2, volume needs to be turned up on the stereo tower feed. In addition to KLAX Tower 2 needing some adjustment, So Cal Departure for KLAX still needs its squelch adjusted.
Feed 2 - KSFO Tower 2, run by Ken. Volume needs to be turned up a tad on that and on his SFO departure feeds.
Feed 3 - BWI Tower is having a bit of trouble staying connected.
Feed 4 - CLT Tower, audio quality goes up and down as you listen, sounds like you are underwater sometimes.
Background on how I know this: I took an hour or so today to update all my feeds that are in my iTunes, so I noticed some that were having some issues. I'm glad I could be of assistance and if you have any questions, feel free to contact me.
Have a great weekend everyone! And I am very happy to be part of the "Live ATC audio quality team" in 2014, at least for the feeds that I frequent. Take care everyone and we will be in touch soon.