Still running my tube preamp with a Cherry Ultra with beautiful results. Preamp is the Audio Mirror T-61 using two 6N1P and one 6x4 tubes. Unit is hard wired with 15db of gain, and controls the Cherry amp just fine! I run Sonoran ICs ..... a 25ft run to amp with no problems into my VMPS ST/R speakers, no hiss here!
Cant wait to hear my DAC DAC TL in this system.