My brx2400.1 at 1 ohm barely put out anymore power than a kenwood 500 rms at 4 ohms because it was 4 gauge cca wire on stock electrical. The brx puts out waaaay more in my vehicles electrical with proper ofc wire gauge
had the same happen with an audiopipe 1k. was weak and distorted, stuck a shuriken batt near the amp, and it nearly doubled in output. Newer gm electrical sucks