This thread was inactive for more than 4 years.
But there's new version 3 of Multichannel Asio Renderer which looks to be completely rewritten to mitigate issues from previous versions (phase shift and occasional cracklings).
New version is now shareware, license costs 30e with trial period of 10 days.
Also new official webpage and support forum are on
https://www.mb-software.at/
Although GUI is almost identical to previous versions there are some new features, like high quality Lancoz resampler, and Automatic Gain Control.
Virtual Speaker Room was there in previous versions as well, and can be used to fine tune setup depending on position of speakers.
Here are couple of screenshots.