id say both are 7/10 the art work looks great and they are the white ones they guy has photos showing output voltage and its shows they both can make some serious power the little 2050 was pushing 23.6v per channel and 47v bridged
volt meter to the leads how much can this be off though i thought as you clipped an amp the amperage will increase with a very small increase in voltage
Could be way off. I've seen amps that can do like 80 volts when tested with a voltmeter but can only do like half of that power(40 volts) cleanly when hooked up to a scope. Having a load attached while measuring makes a big difference as well.
I'm not saying they aren't good amps . Oldschool PPI will do rated and a bit more but they weren't as underrated as the oldschool rockford fosgate and mtx stuff. Good clean rated power is what PPI was all about. I just didn't want you to get the impression that those amps were doing some insane amount of power based on that guys voltmeter video.
I don't think you will be able to get $100-$150 out of that 2050am unless you just run across someone dying to pick it up. I would think more along the line of $75-$85 would be top dollar. I'm not trying to knock the amp, it's just that they aren't bringing alot right now.
The 2150m isn't terribly under-rated but, it does make rated power at only 12 volts so, you will get alittle more power than advertised. Probably 10% or so.