Originally Posted by dmusoke
WHERE IS THE BASS GONE?
My D2v current setup is:
2-CH (Stereo) analog -> Analog Direct(AD) in the D2v.
6-CH MCH analog -> Analog Direct (AD) in the D2v.My Oppo Setup:
All speakers set to "SMALL" with xover set to 60Hz
Stereo Signal = Front Left/Right.Test stereo CD
= Enya "Watermark". First soundtrack is also called "Watermark" which is the test track.
When i select 2-CH input in the D2, the bass is severely muted in this track. When i select 6-CH MCH analog, the bass 'comes back' and is as full as expected as the subwoofer is engaged. Both D2v input configs have no ARC processing whatsoever since they are analog-direct to the D2v output.
I know my speakers are not lacking in bass as they have response down to 20Hz and below (see Music config attachment from ARC).
So, why is the bass missing in the 2CH AD mode but not in the 6CH mode? Why and where is it gone in the Front Left/Right mode (which is my preferred stereo mode)?
Also (maybe related?) ... when i change the Stereo Signal mode in the Oppo to from "Front left/Right" to "Down-mixed Stereo", the bass seems to come back, maybe not as much as before (but my ears could be fooling me here i admit).
Music Config.jpg 341k .jpg file
Your problem is that you have your OPPO 95 set to configure its dedicated Stereo outputs for use IN PLACE OF the normal Left Front / Right Front outputs of the multi-channel set.
That means they are responding to all the settings that would normally apply to Left Front / Right Front in the multi-channel set. In particular, the 60Hz crossover is extracting bass from them and sending it to the multi-channel Subwoofer output.
If you want to wire the dedicated Stereo outputs separately from the Multi-channel outputs, then set them to "Down-mixed Stereo" and the crossover will not be applied against them. You will need to wire Left Front / Right Front from the multi-channel set to the 6-CH input of the Anthem, and separately wire the dedicated L/R Stereo outputs to a stereo input pair in the Anthem.
Now when listening to CDs using the multi-channel set, some bass is being sent to the OPPOs subwoofer output. In ANALOG-DIRECT in the Anthem, that bass is then going to your Subwoofer -- uncorrected by ARC.
Meanwhile when listing to CDs using the stereo outputs (Down-mixed Stereo) all the bass is maintained in L/R and that's being sent to your Left Front/Right Front speakers by the Anthem. I.e., when using ANALOG-DIRECT there is no crossover processing -- no bass steering -- in the Anthem at all. Not by ARC, and not by any manual setting you might make in Speaker Configuration in the Anthem. NO AUDIO is going to your Subwoofer.
So it is perfectly normal for the bass to sound different even when the OPPO is configured correctly (Down-mix stereo) because ARC is not correcting the bass transition between your mains and sub, and your mains may not be able to reproduce bass as well as your sub.
If you want to use ANALOG-DIRECT with the analog inputs, you have to take it on faith that things are just working in your room and in how your speaker and sub naturally match up, or you have to do physical adjustments like installing bass traps or such to better match main speaker bass and subwoofer bass. Life is tough for folks who prefer to live in an all-analog, pre-ARC world.