Boston Acoustics

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2-Way 6-1/2" LCR In-Wall Speaker

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Boston Acoustics.

The HSi 275 in-wall speaker combines sonic accuracy with remarkable value. Your favorite movies and music will play loud, long and distortion free, and you’ll give up nothing in the way of living space. Designed for stunning sound and ease of installation, HSi 275 in-wall loudspeaker expands the realm of quality sound to create an audio system that pleases even the most critical ears.

  • 3/4-inch tweeter
  • 6 1/2-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 NCB6


Nominal Impedance
8 ohms
Crossover Frequency
Mounting Depth (from surface)
3" (76mm)
Bass Unit
6-1/2" (165mm)
Recommended Amplifier Power
10-90 watts
Frequency Response (±3dB)
Sensitivity (1 watt (2.83v) at 1m)
3⁄4" (20mm)
External Dimensions
11-9⁄16 x 8-13⁄16" (294 x 224mm)
Mounting Hole Cutout
10 x 7-3⁄8" (254 x 187mm)


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