I think you would find it a bit anemic and lacking low end etc. I have tried both the Weber Trucks 10 and CTS Alnico as a single speaker. Both were unremarkable. Both were intended to be used in those 4 x 10 applications. As such, things change a lot. 4 x 10 pushes about twice the air as a 1 x 15, and simply having them setup that way creates huge bottom end/lower mids also. So as a quad the results are much different than as a single. It's kind of the beauty of 4 x 10 really, they used light weight/ light duty speakers to make the amp not too heavy, and it worked out!