Oi feel for you as I had the same problem. I went to a tube preamp and it helped a decent amount. I'm not trying to denigrate the advice on the attenuators but more than one audio dealer told me a big no on those. Of course everyone has their view.
Too much gain in preamp
I have the Edge S-1 preamp. I'm not sure what amp this would mate well with but when I use it with any of my SS amps I have way too much gain. When I turn the knob up 20% its full up. Obviously it is hard to set the volume with this situation. Should I be using this with a different amp? Or reconfigure something internally? Anyone know how to contact the manufacturer?