AVM Audio 8.2 a meaningful improvement over the 8?

Many years ago I owned a pair of  AVM Amp essential monoblocks. It's a long story about why I moved on, but I liked them a lot. I am looking at an amp now. There is an 8 available at one online dealer and an 8.2 at another. The 8.2 is essentially double the price. I know there are improvements, but I wonder if the circuit is markedly improved. I will be using a pair of JBL 4367 so not a wicked load. Anyone have insights with the two amplifiers?