Mojo, I don't know about that one. One is a full tower speaker and the other a bookshelf. I definitely would not replace my m80 v4's for the M5HP's for my theater room in my situation. They sound very similar and I think the M80's probably have even more bass than the M5HP. The M5HP has one 6.5HP driver but the m80 has 2 standard 6.5 drivers. I think the surface area of the M80 will beat it here. Both are excellent but I do like the version 4 axiom speakers a little better than the previous models. I did not compare the v2 but I did the ti and v3 editions.