You can commute to work in a 3/4 ton longbed dually diesel pickup also, although most folks wouldn't really enjoy it. But if it needed to tow a 25 foot boat, that's a good choice.
Same goes for speakers. I was in pro sound for many years, and have designed and worked with lots of pro drivers and horns. Great for their intended application, but most are definitely not HiFi. Exceptions noted for Altec 803-8G and 288 horn drivers and 515 woofers. But each of those components used probably cost near what those Yamaha's cost.