Originally Posted by Nick P
I want to make sure I have my head wrapped around the whole multi channel analog/LFE issue. I'll be using a Panasonic 55, multi analog out to my existing Denon 3802. I've tried to read everything and this is the way I understand it.
I'll set all speakers to small in the 55's menu. The 55 will then add the correct boost for the redirected bass. The LFE will continue to be sent over the 7.1 analog out 10db lower. I will then have to up the SW level 10db in the 3802's channel level setting. Am I on track so far?
Is a "55" a player?
What are you using to calibrate? I would strongly suggest you use a calibration DVD such as AVIA. With a calibration DVD, you can calibrate both connections, digital and analog, independently and correctly. You will use whatever settings it takes to achieve a calibration of the player's analog connections. You do not have to worry about any sort of additional adjustments to the subwoofer levels. Everything will come out in the wash. If you have no sub in boost setting in the receiver, you may have to use a combination of the player's level trims and the receiver's analog inputs' level trims to get the subwoofer's multichannel analog connection correct (see below). But once you calibrate either connection, the calibration is done. A calibration is a calibration.
Originally Posted by scsiraid
1) With speakers set to small in the player, the player will reduce the subwoofer output by 15db. Your receiver should have an option to boost the Analog Subwoofer input by 10 or 15db. You should select 15db.
Do you know this is correct for his specific player, scsiraid? It varies from player to player. But it is irrelevant. Whether you have a way to specifically boost the multichannel analog input cluster's sub in or not, Nick P., you will (hopefully) be able to adjust everything appropriately if you use a calibration DVD. If you do have a sub in boost, that's great, but you don't necessarily have to have it. With a combination of the player's level trims and the receiver's analog input level trims (which it hopefully has), you can get the 15dBs (or 10dBs, or whatever it is) difference between the subwoofer and speakers that you need. If you can't adjust both the player's analog output level trims AND the receiver's multichannel analog input level trims, you may have an issue getting 15dBs (if that is, indeed, what is needed for your particular player).
But, for example, all else being equal, if you set the speakers' level trims in the player to -7.5dB and the sub's level trim to +7.5, you have created a +15dB difference in the subwoofer level. Again, if you use a calibration DVD to calibrate the multichannel analog connection, all that is important is that the calibration be correct. There are no 'fudge factors' involved. If you achieve a calibration, wherever you need to set all the level trims, then you are calibrated.
But a calibration DVD is a prerequisite for all of this. Without it, you are almost shooting in the dark. Of course, you can always adjust the multichannel analog connection 'by ear'.