Whoa! It is NOT possible that this amp swung 130 volts AC out!
Do the math, that is 130 times 130 divided by impedance (even if you use 1) that is 16.900 watts.
Smoking CRACK!!! Look at the devices. 16 FETS (bottom of picture) only 8 are on at any time,
so 8 times 70 amps (assuming IRFZ48's) and that is 560 amps of MAX current draw.
4 cores, the input connections, the "soldered" up PC traces.
16,900 watts or 13,000 watts is 1971 amps and 1516 amps respectively of full power current draw.
Thru that "nut and bolt" connection? Say what?? SMOKING CRACK!!!!!!
I do applaud them for using meters (good ones too!) But no O'scope and no test conditions ,
like what was the load? what kind of load? (meaning speakers or load resistors).
Test tone? All bits high (0dB) What??
Have you guys ever seen 12,000 watts of load resistors!! Neither have I and I can tell you it would be BIG!!!!
And I have seen a LOT of test setups. No one I know (other than Audison in Italy, Kicker and Rockford)
could even power up 13,000 watts of amplifier to test it.
Reality test here folks!!!