As far as I understand the Bass Enhancer only affects two channel output and according to the "white paper" regarding the set ups published on the Denon web site, it only affects the analog outputs. You might want to read the white paper as it addresses the multichannel Bass Management in detail (even though I ended up adjusting to my ears and measurements a little differently as recommended).
The white paper:
http://www.usa.denon.com/catalog/pdf...ps%2060903.pdf
Good luck and enjoy the player. I just bought mine about a month ago or so and it is a great improvement over my previous Sony S7700. As is my new Misubishi 73713 over my 61 inch Sony XRB.
