150b vs 250a Comparison

I’m ready to purchase the 150 or 250. Has anyone compared the latest versions of the 150 and 250 head to head? Outside of extra inputs and a slightly different dac (9028pro/9038pro), and the obvious larger box and display what would be the advantages using the 150b vs the 250a to justify almost double the price tag?

Thanks,
Scott

It’s not just the DAC chip that makes a device sound (but which is much better on the rs150b anyway), but it’s all the hardware as a whole, starting from the power supply, the clocks, the output stages, the internal shields , the signal path between cards, etc.