I've got a AMP2 and RPi4 and ordered a 19V, 4.74A power supply for the combination.
However, being unable to find a PSU with 5.5x2.1mm plug, I also got a 5.5x2.5mm to cable adapter to add a 5.5x2.5mm power pug to AMP2.
The documentation for AMP2 states input is 12-24V and recommended input is 18-20V. However, the cable posts on AMP2 states "18V".
Is it safe to power AMP2 via cable posts with a 19V 4.74A PSU or, does it need a strict 18V over the posts and only plug is regulated up to 24V.
Thanks in advance.