I recently made a big change to my system, which is based around a pair of Harbeth C7es3. About a year ago, I traded in my vintage McIntosh system (MC240 and MX110z), mostly because I was sick of getting it repaired and little things going wrong here and there. I also knew it was not an ideal match with my Harbeth speakers and I was looking for some more speed and bass impact. I had that McIntosh tube system since 2005 through a bunch of speakers and and other components. So last year I traded it all in on a solid state integrated, the McIntosh MA6300, which is 100 wpc. The 6300 did give me more speed and more bass, but after living with it for almost a year, I was just not happy with the sound of my system. I missed the tubes and non-fatiguing sound, and I never felt that the 100 wpc integrated was nearly enough power to drive my Harbeths. Over that time I had been doing a lot of research, along with lots of reading here. Several brands seemed to keep popping up (Audio Note, Shindo) but one was actually in my budget for the amount of power I wanted. Line Magnetic. So I was very curious about them and reading everything I could (which really is not that much) and then that review of the 518IA by Herb Reichert in Stereophile came out and it really focused my search. I don't have a Line Magnetic dealer near me, so I reached out to Taylor at Goldprint Audio, who is a member here. I worked with him to purchase a 518IA integrated, and by that point, I had also decided to move away from the Rega DAC in my system as well, so I also purchased a 502CA tube DAC. I want to thank Taylor for all his help and great service. I feel like I asked him a million questions during this process, and he answered every one, and contacted the importer for answers as well. I highly recommend Goldprint Audio. I now have this system in place: Line Magnetic DAC and integrated amp, Rega P3 turntable/Dynavector 20x2L/Dynavector P75mkII, and the Harbeth C7es3 speakers. I have been listening A LOT since I made this change, about a week ago. I am still gathering my thoughts about the change, but all early impressions are positive. In fact, I know I have found my long-term solution. I had concerns about moving from a 100 wpc solid state amp to a 22 wpc tubed SET amp with my speakers. It turned out to be an amazing move. The Line Magnetic drives the Harbeths better than any other amp I have heard with them. The bass is tremendous and articulate and I have never had the volume over 10 o'clock, usually around 9 o'clock for non-late night listening. I am also in the process of rolling tubes throughout both units. So far I have swapped out the 5AR4 rectifier in the amp with a NOS Phillips tube recommended by Kevin Deal at Upscale Audio. The improvements were not subtle. That one really surprised me. And now I just swapped in some NOS Mullard 12AU7 tubes in the DAC. I am still evaluating that change, but first impressions are the bass is deeper and more complex, and electric guitars are very very sweet-sounding. I'll post more about the overall sound soon. And continuing tube rolling changes too. I have some NOS Telefunken smooth plates coming for the 12AX7 preamp tubes in the amp. Also some NOS RCA blackplates and GEs to play with in the 6L6 sockets of the amp. If anybody has any questions about these units I'll be happy to try to answer them.