Ted, i do not think one VK 60 will be able to power the Sonus Faber Extremas. The Extremas need lots of power. Are you serious, your friend said the Extremas sounded good with a 300B amp. Unless it was that high powered VAC
300 B Amp, i dont think any 300B amp would sound good with the Extremas. My friend is using 2 Meridian 557 Amps bridged on the Extremas. This combo sounds amazing. I would think, your Rowland 5 Amp would be a much better on the Extremas, then the VK 60. The VK 60 is an awesome tube amp. But i dont think it will have the power for the Extremas.
300 B Amp, i dont think any 300B amp would sound good with the Extremas. My friend is using 2 Meridian 557 Amps bridged on the Extremas. This combo sounds amazing. I would think, your Rowland 5 Amp would be a much better on the Extremas, then the VK 60. The VK 60 is an awesome tube amp. But i dont think it will have the power for the Extremas.