I can speak from experience on this topic. I've matched a pair of Eico HF-12s, the mono equivilent of the 81 with the AV3's, the AV1's, and the Neo2x. It provides all you could possible want on the first two, and covers 95+% of your power need with the latter. They are very nice little amps and will power anything that Danny makes outside of the LS series.