The overall performance of the Signature 1000 Titanium is very high, but still the AX1000 manages to take the lead.
The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30 and 32 degrees Celsius (86 to 89.6 degrees Fahrenheit).
The average noise output is close to the reading that we got from the AX1000.
The following graph shows the PSU's average efficiency throughout its operating range with an ambient temperature close to 30 degrees Celsius.
The overall efficiency is sky-high.
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
I wonder why you don't seem to agree with this and instead give this thing an editor choice award.
The HX1000 also has a single +12V rail: https://www.tomshardware.com/reviews/corsair-hx1000-psu,5214.html
Yes, the Corsair HX-850 has a single/multi-rail hardware switch for either a single 72A 12v rail or else 7 40A rails...;) https://www.kitguru.net/components/power-supplies/zardon/corsair-hx850-platinum-2017-power-supply-review/3/