PS3 Audio Problem, HELP!!

[KingDeezie]

So, I have had my PS3 since a few months after its launch back in 2006; its an original 60GB.

Now, I am going to explain the setup, and this might get a little confusing, so bear with me...

I have the PS3 connected to a Pioneer Elite receiver via HDMI.

I have the front outputs of the Pioneer Elite receiver going to a custom Response Audio Purity One vacuum tube line stage.

The Response Audio purity one was original constructed as a pure two channel preamp and thusly has NO HT bypass.

It does however have an LED volume control, so I level match with it and the Pioneer in order to make sure that the speakers are all at the same level.

This goes to a set of Odyssey Kismet mono blocks, out to my mains.

The issue?

So, I have just recently noticed it, and at first I thought it was an isolated incident.

While playing Modern Warfare 2 when that first came out, I was playing and out of no where out of the right channel was this MASSIVE shotgun blast. IT scared the living crap out of me, and I thought that my speakers had blown.

It continued to happen every so often in Modern Warfare 2, so I thought it was something to do with that particular game, and I lowered the volume.

Flash forward to the God of War 3 demo a few months back, and a similar thing happens. I died, hit the continue button, and the continue gong (or whatever you want to label it) is loud as all hell.

So now I am a little concerned...

Playing Demon Souls now, and am fighting the level 4-2 boss, and everything I use the Sword of Storms, the thunder effect out of the speaker is significantly louder then the rest of the game.

I fear that I am going to blow my speakers, and with all the money I spent on my 2-channel setup, I would lose my mind if my POS PS3 blew my speakers.

Does anyone have any idea what this might be? Has anyone experienced something similar?

I have tried multiple things. Nothing like this has happened on a Bluray.

Also, I thought maybe I was clipping the preamplifier, so I turned down the volume on that to no solution to the situation.

I have the receiver on -30 while all this is happening BTW, so not anywhere near reference.

I am totally at a loss for what the problem could be. Anyone have any suggestions?