My original hearing aids are programmed up to 8 khz which is fairly normal for hearing aids as the audiograms usually only go up to 8 khz. I have seen others go up to 6 khz. Well, recently I am trying out 12 khz range hearing aids and they seem to lessen the tinnitus even more. Supposedly my old and new ones are programmed the same up to 8 khz and my new ones are programmed up to 12 khz because i had an extended audiogram done. It's good and bad news because the hearing aids are expensive (at least for me). Just thought though I would share this with people. The hearing aids I am using are the Signia Pure Primax 7px I believe. Interestingly enough I think the maskers can be programmed up to 12 khz as well. I might go back to the audiologist to make sure the amplification program looks the same for both except when it goes beyond 8 khz. I just thought I would share this with people who might benefit from extended frequency aids. I think there are some other brands that do this but you will have to call around.