In reply to:
can't I use the Bass Management on my HK630?
You'll have to check your owner's manual on that. The receiver can only do bass management on a digital signal, such as the bitstream sent to it over a digital coax or toslink connection. When you play DVD-A's, or SACD's, with a very few exceptions, the signal has to get to your receiver via 6 analog connections, one for each channel plus the sub. Therefore, unless your receiver can redigitize the signal, it will perform no bass management. That is why the bass management of a DVD-A or SACD player is so important. If your player has insufficient bass management, Outlaw Audio makes a device called an ICBM that goes between your player and receiver that does the bass management for you. It costs about $149.
Mark
