I read the Lexicon / Oppo review with great interest. So in that spirit I invite you to have a look at these two amps.
First we have the LANH 500,
http://123triadpro.com/triad09/linn_audio/version-1/amplifiers.html From Linn Audio of New Hampshire: $3500.
Then we have the A500,
http://www.behringer.de/EN/Products/A500.aspx, from Behringer: typically under $300.
The price difference is substantial. Linn Audio of New Hampshire does not publish the specs on the LANH 500, but claim to have:
"...contracted local electronics engineers and asked them to make some modifications to the amps to bring them all the way up to high-end specifications, mostly by replacing key components with those that high-end audiophiles demand for critical performance."
That sounds like vague marketing hype. I say prove it!