This trimless speaker pair really is a bargain when you consider the components that go into it. The ACE590 moves into the larger 6.5" woofer for excellent bass for home theater systems and a 3/4" pivoting silk dome tweeter for crisp highs. Contour switches also allow you to tailor the bass and rebel to your preference. The ACE590 and our entire ACE series of in-ceiling speakers combine elegant, modern style with outstanding audio performance.