It isn't just the speakers that sound good at low volume, it is the entire system. The better the system, the less you need to turn it up. you would benefit greatly by upgrading to one of what Tekton calls their "Flagship"--probably Moab, Encore, or Symphony would suit your needs.
I find a great DAC and a Great tube amp with these high sensitivity speakers make listening at low levels even more enjoyable that high levels.
Jerry