What do you have for a Sub?
One JBL 4645C and one DIY sub with a WGTI15, the two amplified by a Crest Audio 8001.
In the digital domain it's supposed to stay at -10dB for head room purposes. In analog there is no reason to keep the -10db. So I don't think the oppo should be attenuated by 10db on the analog output. That's just my opinion and understanding.
In the digital domain, le LFE channel received by the pre-amplifier is supposed to be boosted with +10db. The head room is an old story :
http://www.hometheaterhifi.com/tech...hannel-in-51-digital-surround-sound.htmlSerge.