I would go with Galen's recommendation of the 4x4.
Ron do you have any technical measurement of input impedance across the 20 hz - (10-50k) hz? With these values you would better be able to calculate the capacitance effect on the input of the towers.
Your VTL preamp has a nice low output impedance. I think the mark 1 version measures 44 ohms balanced and rises up to 167 ohms at 20 hz.
Ron do you have any technical measurement of input impedance across the 20 hz - (10-50k) hz? With these values you would better be able to calculate the capacitance effect on the input of the towers.
Your VTL preamp has a nice low output impedance. I think the mark 1 version measures 44 ohms balanced and rises up to 167 ohms at 20 hz.