The Boston Acoustics HSi 435 is a compact 2-way speaker designed for discreet installation in existing ceilings. The speaker has a 3.5" woofer and a 0.75" dome tweeter to deliver crisp, realistic audio with a wide frequency response. An integrated high pass filter lets you remove unwanted bass frequencies below 180Hz. The speaker is designed for easy installation with a metal backcan, a reduced bezel design for seamless integration, a paintable surface to match your decor and a magnetic grille. The grille and bezel are square to provide a stylish look.