Eric Neff has posted a review of the Spread Spectrum Technologies Son of Ampzilla II power amplifier ($3500) at Hi-Fi+. His conclusions:
“To sum up, my time with the Son of Ampzilla II has been both a revelation and a privilege. I have never found such a high performing solid-state amplifier at this price point. Generally, it would take a big step up in price to reach these sonic heights. It is also my first opportunity to spend significant time with a James Bongiorno design. But there are so many good designers and so little time to sample their work, I suppose! Highly Recommended.”
You can read the full review here.