@yyzsantabarbara Sorry, haven't been back to this thread. With both the DAC3 and AHB2 set for no attenuation, as recommended by Benchmark when used with the LA4, there does seem to be greater transparency. A bit more depth to the soundstage, a bit more detail in the texture of voices, etc. And the volume control is much more pleasant, with easily repeatable levels, and it's easy to make fine volume adjustments by remote.