My definition of best is regardless of built, marketing, price, actual sonic difference, design craftsmanship, combo, best in terms of power and measurements as well as perfect channel balance at the same. Putting other factors as irrelevant, just measurements and power. Measurements in terms of best THD and noise as well as FR or whatever, regardless whether can hear the difference or not.
Hopefully you can include best amp and dac including amp/dac combo (power and measurements, not features, built, etc.....) List on orders.
So regardless of whatever factors except power and measurements, why consider over $1000 and $2000 when there is no sonic difference ? Between, Benchmark HPA4 and the Okto Research DAC8 Stereo, isnt the HPA-4 a standalone amplifier ? How is it a combo ? And maybe there are better and more expensive that you have not tried but measures better for amp and dac ?
Between Matrix Audio Sabre-X Pro and Toping D90, which sounds better objectively on paper and sonic difference ? Why Matrix over D90 apart from features and design as well as marketing ?