Just a cautionary note, be very careful when comparing pre-out voltage specs. Manufacturers don't seem to follow the same rules, standards or practice. Some specify "rated" output such as Denon, Marantz (1.2V), some Yamaha (1.0V) while others specify "Maximum" output such as NAD, CA. I have seen very low numbers from lab measurements of high end preamps such as McIntosh, Pass Lab, Quad etc., and have also seen as high as >18V from lab measurements of the low cost Denon 3808A. Don't mean much to me unless I know all the details.
There are other aspects (e.g. lab measurements that use different methodologies and references) that make it almost impossible for us to know how they compare, unless we take the measurements ourselves.