Boston Acoustics A 25 5.25" 2-Way Bookshelf Speakers offers high-quality audio in a stylish and modern design. The cabinet has a high-contrast finish with scratch-resistant glossy panels, a textured top, and a magnetic grille to fit beautifully into any decor. The cabinet also features internal bracing to reduce internal resonance. The cabinet houses an advanced 5.25" ceramic/glass fiber polymer woofer with Deep Channel Design technology to deliver plenty of bass response from little amplifier power. Acoustically tuned bass ports on the cabinet also help to extend low frequency response. The 1" Kortec soft dome tweeter provides crystal clear treble frequencies.