Boston Acoustics

HSi 250

2-Way 5-1/4" In-Ceiling Speaker that features:. 3/4-inch tweeter. 5-1/4-inch woofer. Easy-install features for existing walls or ceilings

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The HSi 250 in-ceiling speaker effortlessly reproduces the all subtleties of today’s most dynamic digital sources for a more realistic entertainment experience, delivering improved bass performance from a 5-1/4-inch woofer and crystalline high-frequency response from a 3/4-inch Kortec® tweeter.

  • 3/4-inch tweeter
  • 5-1/4-inch woofer
  • Easy-install features for existing walls or ceilings
  • Paint-ready surface allows you to match your wall or ceiling finish
  • Reduced Bezel Design for seamless integration with the wall or ceiling
  • Magnetic grilles for easy installation
  • Optional new construction bracket NCBR5


Bass Unit
5-1⁄4" (135mm)
Crossover Frequency
External Dimensions
8-1⁄16" (205mm)
Frequency Response (±3dB)
Mounting Depth (from surface)
3-1⁄16" (78mm)
Mounting Hole Cutout
6-3⁄4" (171mm)
Nominal Impedance
8 ohms
Recommended Amplifier Power
10-90 watts
Sensitivity (1 watt (2.83v) at 1m)
3/4" (19mm)

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