Suggestions on improvement

Short story for OP.

I am retired Army. Hearing went bad in Field Atillery and Air Defense Artillery units. Once I got out, 24 years later I had lost upper mid freq and higher freq band hearing. My wife told me to get tested at the VA and once my hearing loss was verified for the 15th time I was granted 10% disability and got hearing aids on Uncle Sam’s dime. The morning I went to get my hearing aids I had stopped at a gas station to get a small bag of potato chips. I ate a few and set the bag on the passenger seat of my car, before I went into the VA building and got my hearing aids tuned in and on my ears. When I got in my car, I reached for the bag of chips. When my hand went into the bag I heard a crinkle sound of the plastic bag. Had not heard that sound in many years. The volume of the sound and frequency range was something I was missing. I was sold on hearing aids on that day, about 5 minutes after I had them on. 
If you have a professional help you get the right kind of hearing aids, learn how to use them, they can really help in your life, not just as an audiophile. I have Resound brand and I use my Smartphone to adjust them.

Thanks again guys for your informative and reinforcing responses. As an aside I was unaware of how expensive hearing aids can cost  and last so little time, 5 to 7yrs. Time to do some research until then I'll Turn up the volume and smoke a bone as deep__333 suggest, lol.

scott22

First off, I do not yet have hearing loss; so no suggestions there.....and some good suggestions so far. I can see where a few tweaks could be helpful though.

(1) Equalizer such as the Schitt Loki or Lokius

(2) Since you cannot risk getting your "bread buttered" and cannot add room treatments (and that I can understand), some room correction could be helpful. Something from DSPeaker like the various Anti-Mode products

(3) Good cables between the CD and the amplifier. Interconnects like Zavfino Arcadia, Morrow Audio MA4, DHLabs Air Matrix, or Lavri Cables Ultimate Silver; can all be had for $200 to $300 a pair. The silver versions might be a touch higher, but may help with a bit more detail....which could be helpful

Little late to the show, have read through the posts.

I am with those who recommend improving your source. I would look into the purchase of a DAC and use your CD player as a transport. Then replace the CD player with a dedicated transport should money for that become available.

If not already, measure your system with a calibrated mic & software and get a hearing test for a baseline. If your system produces frequencies you can't hear or vice versa, this is important info. Measure system after any changes, allows you to track your likes/dislikes with numbers vs audio memory.