The math says there's something you're missing. If it looks too good to be true, it usually is. These 2 are not competitors. You can't sell anything that compares to a lamborghini for less than 1/2 the price of a lamborghini. You can't buy a mansion on a trailer budget .. and you can't get QSC K12.2 performance out of a speaker less than 1/2 the price.
My QSC's have never failed. Period. That's enough for me to be a repeat customer. I have heard of Alto failures. Combined with the low price point and the knowledge that you can't get something for nothing, that's enough for me to not even attempt it.
That is not true. I could purchase a Corvette ZR1 for way less than half the price of a Lamborghini, and would have a car that is able to beat it in the 1/4 mile and hold it's own in out on the race course.
Performance wise a Corvette ZR1 holds it's own against any Lamborghini. Also, Lamborghinis are known for catching fire out of the rear mounted engine while in use. Seems to be a factory defect that was never fixed. Plenty of videos of Lamborghinis catching fire. Love the look of a Lambo though!
QSC are work horse speakers. Do you want speakers that will last 7 or more years, or speakers that might have similiar output, but are likely to last a smaller length of time? ...Of course you could easily buy another pair of Altos again and still spend less money too.