May as well consider Musical Fidelity. They may not be "best" but could very well be close enough especially if value (i.e. price/quality/sound) is considered with equal weight. While most integrated manufactures liken their product to a separate amp and pre-amp, Musical Fidelity goes a step further to claim their integrated (M6si) is actually three components that happen to share the same casing. A pre-amp, and two mono-block amps. Just my .02 as I’ve auditioned the Krell Vanguard and MCIntosh comparable as well.