@dspringham,
"Honestly, I though the VR L2iSE did sound just fine with it’s built-in single device JFET output stage but the Zen just adds that last bit of air, righteous tone and life-breathing liveliness that takes favourite tunes a higher plane."
Very well described! As much as I enjoyed my prior solid state amplifier and then some very fine class A/B push-pull tube amplifiers, the class A lower watt SET was just more "alive" sounding and emotionally connecting. In a nutshell more "breath of life" realness and tactile. Obviously not everyone will agree but @dspringham I relate to your listening comparison experience/evolution .
"Honestly, I though the VR L2iSE did sound just fine with it’s built-in single device JFET output stage but the Zen just adds that last bit of air, righteous tone and life-breathing liveliness that takes favourite tunes a higher plane."
Very well described! As much as I enjoyed my prior solid state amplifier and then some very fine class A/B push-pull tube amplifiers, the class A lower watt SET was just more "alive" sounding and emotionally connecting. In a nutshell more "breath of life" realness and tactile. Obviously not everyone will agree but @dspringham I relate to your listening comparison experience/evolution .