when your hearing is not as good as it was . . .

+1 @hilltoppa 

At 74 I am on my third pair of aids. The first two were so bad that I couldn't stand to wear them. Expensive well known brands - but awful, particularly with music. Now using Widex 440 and couldn't be happier. Very natural sounding: no edginess, no grit and grain, no fatigue. 

+2 @hilltoppa 

Getting Widex hearing aids helped. The three band equalizer in the user software less so. I use Roon software to stream and the parametric equalizer built into the software was more helpful in zeroing in frequency ranges needing a boost. But in the end the hearing aids were the most help and the audiologist can retune them. 
 

Each person has different levels of loss so seeing an audiologist who can offer a high quality hearing aid is to me the first step. Don’t know how the Jabra’s compare to the Widex, but the latter are pricey, as much as a very decent preamp. 
 

I can still hear the difference between good and bad recordings, better interconnects and speaker cables vs. less effective ones, but I do still miss some very high frequency details over about 7,000 Hz. You can only recover so much with technology. So sit back and enjoy the music. 

I'm also 68 and my hearing is about average for someone my age. I recently played a test CD and I can still hear 12K Hz but that's about it. I went to many loud concerts in my youth but I learned early that earplugs make the experience much more pleasant. I smoked in those days and tearing off the filters from a couple of cigarettes and stuffing them in my ears worked reasonably well. Later I discovered Etymotic earplugs and wore the religiously at loud events..

To answer your question - no, my high frequency hearing loss has not led to any changes in my system. I will readily admit that I can't hear the subtle differences that other audiophiles seem to hear but that has always been true. I can't hear the difference between interconnects but I couldn't hear the difference 30 years ago either. I've got several DACs, two transports, and a couple of players ranging in price from $800 to $20,000 and they sound extremely similar. I couldn't guarantee that I could tell them apart in a blind test. But I've been to three audio shows and I can certainly tell you that I can distinguish between mediocre systems and very good ones. I also discovered that my system holds its own against most of the six figure systems I've heard even though my speakers, amp, and preamp, are late 90's vintage.

I had an interesting experience in the Synergistic room at AXPONA in 2018. They had a very nice setup with big Magico speakers and they did 3 before/after tests. For the little HFT thingies I couldn't hear any difference but I would say that most people in the room felt they could hear the effect. I talked to several other people who were younger than me who couldn't hear the effect either so I don't think age was a determining factor. But when Ted turned off the Atmosphere gizmo the difference was astounding (at least to me). The soundstage collapsed from 3 dimensions to a flat wall of sound. I was absolutely blown away but some of the others in the room went, "meh." What I drew from this is that I am probably very sensitive to soundstage issues but maybe not so much on frequency response.

One more note about how we process sound quality. At the same AXPONA they had a room with very large Wilson speakers and D'Agostino electronics. This system sounded terrible to me. It had an etched character in the high freqencies that made it sound more like a lab instrument than a stereo system. I talked to several people about this and reactions ranged from, "I couldn't stand to listen to an entire song on that system," to "Best sound at the show. Incredible." Age didn't seem to be a factor with the people I talked to in whether or not you liked this sound of this system. 

Check out speakers like a Martin Logan's with a Folded Motion Tweeter.

I have a pair of ML 15i and they seems to keep the hi frequencies more noticeable  as compared to a soft dome tweeter. Electrostatic and Magnepans speakers will also be an improvement in this area.

I too wear the Jabra Enhance Select H.A. and it is hard to dial them in while listening to music. I just upgraded to the new Select 300 and for me they sound better overall YMMV.  

I'm 72 and had my hearing checked a few years ago and it was 12/13k With my stereo rig I took the approach making sure my system was truly full range My tower speakers have built-in subs and I also use two SVS Ultra 13 subs with their upgraded plate amps  I also have a pair of Magnepans that I listen to also  I must say many songs that I've heard before, now sound more impactful with much more inner detail dynamics   I know that l have lost some upper frequency but I can't get the smile off my face when I listen to my stereo equipment! Oh l listen to everything from Frank Sinatra to Odesza