Give you two 12VHPWR instead of one
It’s not clear exactly what the 1600W of power is needed for, but the Seasonic Prime TX-1600 can provide it if you need it. With that much juice flowing, it’s nice to reach 94.29% efficiency at 50% load and maintain 93.85% efficiency at 1895W peak load. And with a maximum noise level of 35.9DbA at full fan speed, you won’t be deaf during operation.
In terms of power quality, Kitguru has measured very tight ripple suppression and load regulation within 1%. Seasonic is so confident in his TX-1600 that it offers a 12-year warranty. The only downside is that you have to pay to get this level of quality. It’s currently $530 on Amazon, but if you need that much power, it’s good enough.