Best is absolutely system dependant. You would not want to drive 106db sensative speakers with this amp using an Ayre K-3x preamp. It just would not work PERIOD. Way too much gain and power. The speakers would be blasting at the first volume notch you could get to...
A 1 watt SET tube amp would work MUCH better.
KF
A 1 watt SET tube amp would work MUCH better.
KF