I had an Adcom 750 for a couple of years and thought it was great. That is, until I heard the Placette.
Tubes may beat the living crap out of anything solid state, but you have to like the sound of tubes. The Adcom in passive mode does very, very little to the signal, which strikes me as exactly what it should be doing. On the other hand, maybe you like a pre-amp that makes the system sound more "musical." I have a First Sound and I understand the appeal. So, Say881, you should try to listen to a few examples from both camps.
Tubes may beat the living crap out of anything solid state, but you have to like the sound of tubes. The Adcom in passive mode does very, very little to the signal, which strikes me as exactly what it should be doing. On the other hand, maybe you like a pre-amp that makes the system sound more "musical." I have a First Sound and I understand the appeal. So, Say881, you should try to listen to a few examples from both camps.