I use them for a year.
j'aprecie what is the most power they can give sound and image brightness at high nivau, the less is the volume (very large) but hey ... with 2x15 inches should not be dreaming! loll
I chose these cases after having por try the elite model (sub + satellite) and after trying transparency tr-318 and the best is because the yorkville sub + satellite too bulky for singer and very roulette and no harm done to make!
The value for money is good.
If that were to happen again, I will redeem them without hesitation!