My new darTZeel preamp arrived on Friday and it is a real pleasure to have it and the darTZeel 108 amp back in the system again. I had tube preamps and amps for 20 years, and finally decided it was too much work and maintenance and started looking at SS options several years ago. I have also tried the Boulder 866, Pass INT-25 and AGD Duet Class D amps. There is something special about darTZeel that makes me not regret moving to SS. In the summer I'll try the dart pre with the AGD Class D and see if it has the same magic.
I had planned to upgrade a very old darTZeel preamp, but it seemed to make more sense to trade it in for the new version of the preamp. I was trading emails with Hervé daily on the decision to upgrade or trade, and he was very helpful. I don't know what the future holds, but I hope Hervé can keep producing these amps.