Power Help - What Conditioner - WHERE?

The amp is the only thing you want plugged into the wall without power conditioning. The rest of the equipment should be on power conditioning. 

@ghdprentice spot on

If you don't have separate lines, then plug audio gear into your best conditioning device and everything else into a separate one, such as a surge protector etc.  Preferably they would be on separate lines but otherwise another outlet is preferable. 

If you have any nearby plugs that run on a different circuit, consider running a line or surge protector on that line with all your AV.  If this isn't an option, just do what @ghdprentice said.  I would also try unplugging your digital from your main power conditioner and see if that makes a difference sonically. 

I am not familiar with the devices you listed for power conditioning etc but ultimately the main thing is separating your audio components from the noise of the rest of your AV system.  I have this same issue in my living room.  I have a fairly high end shunyata power conditioner though and I plug my noisiest stuff into the digital side(TV, other digital devices) and my amplifiers (active subs, main amplifier) into the analog side.  This is what Shunyata instructed I was happy with the results.

If you can afford an older Shunyata unit at some point (MPC-12, older Denali units, Hydra units) I highly recommend it, although I have never used the stuff you've listed.  After using one in my studio I finally found a super good deal on an MPC-12 and pulled the trigger for my AV system and it made a world of difference.  At the end of the day, if you just follow these instructions, that's probably the best you can do.  Also last note - separate cables as much as you can.  I know it's a rat's nest but separating power from speakers/interconnects/other power cables as best as you can is important.

Here is a bit more inffo.  I have two circuits sitting right at the back of my AV Rack. One is 20a and the other is 15a. They are dedicated and wired straight to the box.

Do I take "Noisy" equipment (PC, Drobo/USB HD, Network Switch) and connect them to the 15a circuit, even though the PC connects via HDMI to my Pre/Pro for playback of Movies and Music? I would run this through a BPT BP-2.

Amplifiers, I was planning on using the BPT BP-3.5 for all my amps, and then connecting the BPT to the XE-12 which would be the only device connected to the 20a circuit. Is that a good idea?

Again, remember I already have all this equipment. The XE-12 does remediate/filter DC power out of the line, so no need for my Emotiva CMX-2.

Basic set-up 101:

- Plug the digital components into the BPT 3.5 balanced power conditioner.   Plug this conditioner into the 15amp circuit. The digital components don’t draw much load. 

- Plug the analog components into the XE-12.  Plug it into the 20amp circuit. 

- The XE-12 does not appear to be current limiting.  It should easily be able to handle the amp.  Listen with the amp plugged into the XE-12 and then listen directly into the wall.  Be sure to wait at least an hour before critical listening.  A quick A/B comparison means nothing.

- If possible, put the cable box/modem/router/switch on a completely different line and/or room. Plug these into the BP-2 power conditioner.   Or - temporarily run a heavy-duty extension cord from a 3rd circuit in a different room for these digital units.   This experiment will give you an idea if it’s improving the SQ.  Make sure that the 3rd circuit is actually independent - and not shared by the same leg on a common wall.

- - -

After everything settles in for a few days, unplug only the HT gear completely.   Critically listen to the 2 channel audio only for a few hours.  Then start plugging in the HT components one by one - and turn each on.  You’ll hear how the SQ changes.

- - -

Isolating analog from digital is very important.    And isolating digital from digital is also important.   Digital components regurgitate noise back into the system circuitry which affects the other components - both analog & digital.  It’s a cumulative effect.

Many thanks for your reply. I plan to give this a shot.