I forgot to note one other anomaly - my sound cut out for a second on three occasions when I plugged in the Defender. Most of the time plugging in the Defender this didn’t happen. Might be a sign my system is strained to it’s limits with my one circuit? Not sure. My Gryphon amp is high A/B bias and draws a lot of current, even when idle. It gets rather toasty. So again, my results with the Defender might be unusual.
I also tested a Niagara 5000 and noticed a lot more bass energy and rhythm. In fact, quite the opposite of my experience with the Defender, where the top end detail actually diminished with the Niagara (however I suspect it was because I was using a low end power cord to power it). With the Niagara this increased bass drive effect is a result of their “power correction” feature as this effect only occurred when I had the power correction switch set to on. Again, maybe a sign my circuit does not have the current reserves my system can benefit from.