Originally Posted by MKtheater
I assume that thebland wants me to rule out that is only from 5.1 by comparing? I know quad bypass has much more bass than say WOTW in DTS-HD which should not be the case.
I think you need to rule out DSP modes like Quad Bypass etc. and compare like with like (or as close as you can get).
For 2.0 source try 'Stereo' as this will use the sub too.
For 5.1 source use 'Discrete Cinema' as this is the 'default' mode for multichannel.
Without the software it will be harder to diagnose any other issues but if possible through the front panel check that LFE Attenuation for DTS is off.
I would also rule out some setup isue you may have missed by doing a factory reset, harsh I know but you want to be sure.
As a side note I find AGL Enhanced the best upmixing DSP for Stereo, better than Quad bypass but IMO of course