Addendum:
I have heard the Soundlabs A-1 driven by McIntosh tube preamp and 1201 monoblocks. This is the only Soundlabs speaker I have heard a lot. Low-level detail and imaging are superb, however I found them unable to play at levels I like to enjoy. In fact, we sat and watched the protect lamps on the 1201's flash at us as we turned up the volume.
If I did the majority of my listening at low levels, they would be in the house now.
Like other participants in this thread, I will take the high ground. I'd far rather say something good about a person or product, than to insult and denigrate.
Best,
Paul :-)