@stuartk You can demo a Weiss from The Music Room for very low shipping fee. You can keep it for months, they are super cool people. Thats how I tried it.
It's not clinical at all, but you need to give it 100+ hours burn-in. It does start out very washed out, but becomes sweet and musical. I suspect 90% of people don't bother to break it in fully.
I have no idea if it will solve your issue though. You can also email Daniel Weiss about your hearing situation and he may have something interesting to say. He's basically a genius.
good luck