At C.E.S. 2017 Air-Tight's "Colorful" New ATE-X Vacuum Tube-Based MM Phono Preamplifier
It's unusual to divide up each curve's time constants into two separately adjustable sections, which is what led to the inelegantly posed question about it. Also note there's a 'flat' choice, where there's no EQ applied, which can be useful when digitizing with a program like Pure Vinyl, which can apply the selected curve digitally.
I know AES is another phono EQ but it's one not often seen so when I said "what is this for" I meant for what records (labels)? I know of none, so I find it an odd choice, when they also chose to omit Columbia or another more widely used curve from the mono era.
I suspect they had a reason for choosing AES but C.E.S. wasn't a good place for that kind of digging. Both at this time are PTD (price to be determined), but I suspect the amp's letters "ATM" are probably a leading indicator.