Morning John
I feel for you. For me headphones don't work unless I use my hearing aids inside of them. My hearing loss is severe to profound.
Maybe you should have a hearing test right now to see what your loss level is for each major frequency.
Then you might be able to determine a temporary fix. Audiometer tests cover basically 200Hz to 6500Hz. It's possible that UofWO's audiology department can do from 100Hz. Setting a hearing aid for speech is different than for music. If you're interested google Marshall Chasin an audiologist who works with musicians at his clinic in TO.
Speech enhancement needs a boost in the 1-2.5 KHz basically where the consonant's reside. The vowels are found at around 500Hz (+/-). For music if you overboost for speech then you're overboosting those harmonics of instruments that have root notes on the lower end.
Maybe if you could find a studio headphone splitter that has it's own L & R equalizer controls, perhaps you can adjust for the compensation of your hearing loss.

The body can heal pretty amazingly - Ian


Ian
My "Original Tunes" Site
My gene pool needs more chlorine.