Dude You can load that chicken down to almost a dead short.. If ya put it in the mono mode it will really put out at 4 ohms .I ran both of mine like that for years . KEEP IN MIND THO ,THAT IT WILL GET HOT ,SO PUT A FAN BEHIND IT SO THE THERMAL PROTECTION WONT ACTIVATE . OH YEA THE STEREO MODE WORKS GOOD AT 4 OHMS TOO .
YRs ago ,an Independent testing lab, took a DC300A (A bigger version) of the D150A ) They ran a 60 hertz signal to the inputs ,hooked a washing machine to the outputs ...washed a full load of clothes with it ,and said it never deviated from factory specs .So like... what more does anybody need to know see ya Sloan