Yes, these are in the order that they were streamed (or that was my goal, at least).
I've heard the feedback on low volume for RFN 400. It does seem to be quieter than usual, and I blame that on the default gain of the studio tracks and my hardcore earplug-style headphones being used during editing.
I'll consider remixing the files to be louder by default, if we get a few more complaints. (Many people have responded to the episode with no mention of it, so I'm hesitant to go through the long process of fixing and re-uploading.) Until then, you may want to check the volume limiter feature on your music player -- this is typically used to protect people's hearing from bad headphones. Also, try using better headphones that block out external sounds.