You are a friggen noob if you believe that CEA bullsh*t. Its not been bench tested at all at 1 ohm by cea because they dont do anything other than 4 ohm. if you dont know the difference between 1 and 4 ohms, it basically shows if your amp actually has balls or not.
CEA tests at 4 ohms, they do not test at 1 ohm. They do not factor in efficiency or anything else. At 1 ohm efficiency tanks and actual power output is strained depending on the caps/mosfets quality in the amp. Hifonics do not do well under 14.4 volts niether do they do any rated power at 1 ohm. Its been proven over and over by almost anyone thats owned a hifonics along with the most legit test out there right now which is the AD-1 amplifier dyno which actually tests real RMS output at a resistive 1 ohm load to clipping.
If you've been around you know that the BRX line is one of the worst brutus lines compared to the BXI, BRZ and BRE which actually did close to rated power. I OWNED two brx 2400s. supposedly 4800 watts right? It got completely and utterly stomped out by a DC 3.5k which is a legit 3.5k on the amp dyno The two brx 2400s couldn't even come close to the amount of output the DC amp put out without clipping and dirtying the signal and guess what? The best amps in the competition world are not CEA certified.
Here's a test of the brutus ELITE which basically costs way more than the brx and is of much MUCH higher build quality, CEA certified and everything. Rated for 1700 watts rms and what did it get? 1199 watts at 1 ohm on EXTREMELY good electrical. If the voltages were around 13.8v like most peoples rides rest at, he'd be more around 1000 ish watts. the BRX series are a lot less louder than the BRE series from direct swaps so yes my power numbers are pretty spot on if you factor in these REAL results at 1 ohm loads.