Another update...
For the past couple of months I've been trying to trace down a skewed stereo image that's been favoring the right channel. Automatically ruling out the McIntosh preamp for some reason, I went on a hunt to weed it out going through the entire system. I swapped out cables, I flip-flopped cables from channel to channel, both on the sending end and receiving end of the signal, checking and rechecking the DC offset and bias on my amp, swapping speaker cables, power cables, moving the speakers all over the place, even listening through headphones on the McIntosh. Under closer listening (first noticed through the headphones) I noticed that both bass and treble output on the left channel was considerably lower than that of the right. I already knew bass output was stronger on the right due to the room layout, but I never really noticed the treble difference that much until I strapped on the cans.
It wasn't until I started the process of elimination, removing the McIntosh from the system when the stereo image snapped back to normal! I ran my Oppo BDP-105D directly into the amp and configured its output to variable so it can be used as a preamp. So in short, it was the McIntosh that was at fault all along. I should have realize it from the beginning, but I guess I was in denial for a couple of reasons. One, the preamp had been sitting for 6+ months unused right after it was serviced by a certified McIntosh dealer, so I thought that maybe it has some "burning in" to do after sitting so long (wishful thinking, I know). Two, I really wanted the issue to NOT be the McIntosh because it is a really decent sounding preamp and had extra flexibility over the Musical Fidelity A3.2CR that it replaced.
To my surprise, over the past few days of using the Oppo as the preamp, it actually sounds better than either of the other two preamps! More open, more dynamic, cleaner, a little wider and deeper sound stage.
The downside of using the Oppo as a preamp is that it lacks analog inputs, not to mention a phono preamp. So the search was on for another preamp. After going through Audiogon for several days with the lack of anything worth a hoot in my price range, I said the heck with it and decided to go with NEW. I hopped on Audio Advisor and ordered a silver Parasound P5. It's the right price, is feature packed with the things I need, and performs way over its price point. In the sense of the over achiever status of the P5, it fits in perfectly with the Oppo 105D, Odyssey Kismet and Sonus Venere speakers, all of which fall under the same status. I figure I can't go wrong.
On that note, Audiogon wasn't a total loss through all of this. As I have been kind of looking for another streaming option over the Oppo, especially for streaming from Tidal, my NAS, and sometimes Pandora or vTuner, I had also been browsing around for a streamer as well to cover those needs, just for fun. The reason being the fact that the Oppo will not stream gapless material which is extremely annoying. Plus, as I leave it up and running 24/7, it has a tendency of locking up, almost on a daily basis which has become highly frustrating. So one of my findings was a Sony HAP-Z1ES. I had done a little research on it a few months back, but not much. I almost pulled the trigger on it until I did a little more research and found out that it does not doing streaming, especially from the likes of Tidal. Almost immediately after dismissing the Sony, I found a BNIB (Brand New In Box) AURALiC Aries along with the upgraded linear power supply. It does everything I want and then some, has excellent reviews and is another one of those over achievers, so I went ahead and purchased that as well.
Since the Parasound P5 has a built-in DAC, and I can also use the Oppo as a stand-alone DAC, I'll compare both side-by-side. I'm pretty sure the Oppo will be the better of the two since it has the superior DAC. If so, I'll just use it as the DAC. I don't think it will have issues standing idle. If it does, I'll just go on a search for a DAC, or just calm down on the spending and settle on the P5's DAC for a while and recoup some $$$. That little Teac UD-501 looks pretty enticing though.
Anyway, now comes the "hurry up and wait" part of all of this. I just ordered both pieces late last night... Actually, more like around 4am this morning! The results of having a nasty headache last night, taking some Advil and drinking two cups of coffee around midnight to get rid of it. LOL
It would be excellent if both pieces came in before the weekend, but very doubtful. Oh well. And sorry for the long-winded post. ;-)