Originally Posted by EWL5
I'm ok with further confirmation. Are you saying it's the receiver's job to amplify the LFE channel? Once a soundtrack has been decoded and converted to PCM for final output through the analogs, isn't it the source player's job to level all channels for proper output to the receiver? I always thought LFE boost only applied to the bitstream signal.
LFE is recorded -10db. If bass is redirected, it is lowered another 5db. That's how it's sent to the AVR, which needs to boost it back up +10db or +15db right before amplification to get the sub back into balance with the other channels. It doesn't matter where or how the decoding is done. The boost still has to take place and it is best done in the AVR.
There's an excellent explanation here in the Audio theory forum.