I did some online research and I found out that 1 AHB2 in stereo puts out 259 watts into 2 Ohms. That is not too bad.
https://benchmarkmedia.com/blogs/application_notes/speaker-efficiency-and-amplifier-power
Near the bottom in the section titled, " AHB2 OUTPUT VOLTAGE AND OUTPUT POWER"
They do not list any specs for mono mode at 2 Ohms.
https://benchmarkmedia.com/blogs/application_notes/speaker-efficiency-and-amplifier-power
Near the bottom in the section titled, " AHB2 OUTPUT VOLTAGE AND OUTPUT POWER"
They do not list any specs for mono mode at 2 Ohms.