Huge Thumbs up to the PrimaLuna Evo 400 amps and Evo 400 preamp. I wish I could give a comparison review with the earlier models, but I never owned or heard PL gear until now. The PL amps seemingly have nothing lacking even with only 100 hours burn-in. I tested the Hana ML cartridge against the Lyra Etna SL, and the PrimaLunas let me hear instantly the differences between those cartridges. The Hana ML sounds spremely balanced at all frequencies and has amazing dynamic slam. But the Etna matches those qualities and adds unbelievable low level detail retrieval. I truly believe lesser amps woud not have allowed me to hear that additional low level detail. They are stunning amps, and for the price I'm more than satisfied. Instead of rambling on, I'll offer to try to answer any questions if anyone has any.
Equipment used - Kuzma Stabi M tt, Kuzma 4-point 9 tonearm, Lyra Etna mono and stereo cartridges, Hana ML cartridge, Moon 810LP phono stage, 2 x PL Evo 400 used as monoblocks, PL Evo 400 preamp, 9 x Synergistic Research Galileo SX power cables, SR PowerCell 12 UEF SE, SR Active Ground Block, SR Gallileo SX interconnects and speaker cable, Martin Logan CLX speakers, JL Audio Gotham sub, Furutech SK-Filter.