I've owned the 2.4s, and currently own the CJ PR140 which is driving a pair of VS VR-4 Gen III SEs. I would think that the 2.4s and the PR140 would make a good combination given the tonality and power of the PR140. The PR140 is not lush per se, it tends to excel at larger scale orchestral and rock music, yet is also quite good with vocals and more intimate material given the right choice of 6922 input driver tube.
Biasing takes only a few minutes every month or so. Each output tube has its own bias pot and LED indicator. The bias pot is turned clockwise until the LED lights, at which point the pot is turned counter-clockwise just until the LED goes out. Since each output tube is individually biased there is no need for matched output tubes. A new set of output tubes should run about 200$.
Biasing takes only a few minutes every month or so. Each output tube has its own bias pot and LED indicator. The bias pot is turned clockwise until the LED lights, at which point the pot is turned counter-clockwise just until the LED goes out. Since each output tube is individually biased there is no need for matched output tubes. A new set of output tubes should run about 200$.