Bass management is applied where the decoding happens. When using the analog connections, the decoding is happening in the player, bypassing the receiver's settings. When using a digital connection, decoding happens in the receiver, and the player's speaker settings are ignored. Typically, receivers have better bass management, so I normally recommend using a digital connection. If your player is hires audio capable (DVD-A, SACD), then you will need to keep the multichannel analog connections as well, though you can still use the digital connection for movies.