Originally Posted by matrixj3
the new review seems to imply that the LFE through the 55's analog outputs is bass shy and that HDMI is really the ONLY way to go to customize the bass channel on this unit?
i have a chance to get an amp with 5.1 inputs but this may kill it for me. I will probably go ahead and get a new amp with HDMI in the future.
In my case house trembling bass is a must and a weak LFE won't cut it. Now im thinking about getting the 35 instead.
It's standard for the LFE to be provided by the decoder at -10 db, and then boosted later in the chain, such as at the amp or the speaker itself, which has its own amplifier. (The -10 db cut in the LFE is done to prevent overloading of the inputs later on.)
This is apparently a situation where the reviewer had previously made the +10 db adjustment in his amp for the LFE, and didn't realize that like most surround amps, his amp doesn't put the analog inputs through the delay processing, LFE boost and bass management (by specifying whether particular speakers are large or small) applied - in the digital domain - to the digital inputs. To apply that processing to the analog inputs would require converting them to digital and then back again for amplification. That's why DVD and Blu-ray players with analog outputs typically provide for speaker balancing, delay programming, and bass management in the player
It would be nice if the BD55 provided for a +10db LFE boost like some DVD players do, but since it doesn't, the solution is simple - don't apply the +10db LFE boost at the amplifier or any of the other sources: apply it at the subwoofer instead. That way it will be applied equally to all sources, digital and analog.