If you have comments, suggestions, going to use this design please let me know!

I'll try to explain why I made all choices, if anything isn't clear or an error from me (quite well possible), please let me know.

Click here for the crossover schematics.

• For the first amplification, buffering of the volume and the first crossover I choose the E181CC. It has the right mu for not too much amplifaction, and has the right drive for the crossover circuit.
• The second stage is the phase inverter, all levels behind it are attached to a higher zero point, which also biases the first E180CC to get it right for the next cathode follower stage. I used the ECC83 because it is quite lineair at 100 volts plate voltages and I rather don't use the same tube twice in the signal.
• The third and fourth stage are active filter buffers, they drive the crossover circuits behind them, all stage are direct coupled for a minimum of capacitors.
• The final stage uses an ECC82, this because with it's nice s and as cathode follower it can drive the quite long cables to the bass amplifiers easy.