Mackie used to make a great powered speaker, but when they bailed on the Italian cabinet maker and went to China or someone over there for the electronics, their stuff hasn't been the same. Mackie has become one of those victims (or culprits) in the outsourcing, cost-cutting, mass producers that really isn't the company they used to be.
Funny story about Mackie. They tried to save money by not paying the price it cost to have their molded cabinets made in Italy, so they went to China to do it much cheaper. They learned the hard lesson that a GOOD plastic speaker cabinet is no easy task, and the Italian company they had worked with made the very best in the world. Their chinese attempts would shatter, crack, resonate, split, all kinds of bad things. So they came crawling back to Italy, tails between their legs. These corporate Mackie guys showed up at the factory surrounded by the Italian workers, were peacefully escorted to the part of the factory where their old mold castings were for these powered speakers. These metal castings are extremely expensive to make, hundreds of thousands of dollars. So in response to Mackie begging to come back to them to have these plastic cab's made again, the Italian execs gave the nod and made the Mackie execs witness a couple of factory workers violently destroy the castings with sledgehammers. Then they were rapidly escorted out of the factory as the many other workers stared them down, punching fists and slapping tools in their hands, Mackie exec's fearing for their own safety. Mackie learned a hard lesson that day. Now that Loud Technologies has purchased Mackie, Ampeg, EAW and others, the production quality of these once-good brands has really gone downhill. I talked to the bass player touring with Crosby and Nash, and he said he was on his 3rd SVT bass amp that month. When they built them in Arkansas, they were rugged, American, quality amplifiers. Now that they're made in Vietnam or China, the quality and ruggedness is gone. Tragic what a capital investor seeking to minimize costs and maximize profits will do to a brand as well as US jobs. A lot of good, talented people here in St. Louis lost their long-time, good jobs when Ampeg sold out to Loud Tech. It's sad.
Back on topic. I know that the QSC cab's are also built in China, and really there are some very well tooled factories set up over there making excellent quality stuff, so this comparison really comes down to performance. I've heard both, and find the QSC stuff to be really nice. The Mackie, to be fair, isn't bad at all, but the QSC seems to have something a bit more nice happening. If you have any of the older Italian/US made Mackies, those are really worth holding on to and taking care of.
... and it's just like any other day that's ever been...