Our take on the Boston Acoustics CS270

by Marshall Chase

Boston Acoustics extends the quality you expect to their in-ceiling speakers. You can enjoy home theater sound or music throughout the house without sacrificing fidelity. This speaker installs directly in your ceiling, making it a great choice for rooms without lots of space to spare. Pick up a pair for great stereo sound in the kitchen, laundry room, or den. Plus, you can paint the frame and grille to blend in with your décor.

An NCBR6 in-ceiling bracket is recommended for installing this speaker in a new home under construction or in a room that's undergoing major renovation. (Brackets sold as a pair.)

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Highlights:

sold individually
3/4" dome tweeter
6-1/2" woofer
handles up to 90 watts
frequency response 65-20,000 Hz (±3dB)
sensitivity 90 dB
8-ohm impedance
paintable speaker grille
cutout dimensions: 8-7/8" diameter
mounting depth: 4"
warranty: 5 years
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Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and specs chart | What’s in the box? | In-depth notes

Features and Specs


Enclosure Type Loading...	In-ceiling
Video Shielded Loading...	No
Tweeter Loading...	Dome
Midrange Size Loading...	---
Woofer Size Loading...	6.5
Woofer Composition Loading...	Laminate Film
Woofer Surround Loading...	Rubber
Power Range (Watts) Loading...	10-90
Sensitivity Loading...	90 dB
Impedance (Ohms) Loading...	8
Frequency Response Loading...	65-20kHz
Connector Type Loading...	Clip
Bi-Amp Inputs Loading...	No
Parts Warranty Loading...	5 Years
Labor Warranty Loading...	5 Years

Product Research

What's in the box?

Download owner's manual

1 Ceiling-mount speaker
1 White aluminum grille
Plastic paint mask
Instruction booklet (English/ Spanish/ French/ German)
Product registration card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Installation: After an 8-7/8" diameter cutout is made the speaker is installed into the opening and held into place with four integral plastic mounting ears. The required depth to install the speaker is 4" from the mounting surface (this includes the thickness of the drywall). Behind the opening there must be a 1" clearance around the speaker to accommodate the ears. The mounting wall material must be at least 1/4" thick for the mounting ears to work.

Paintable: Both the frame and grille can be painted to match the ceiling. A plastic paint mask is included to protect the speaker from being painted as well.

Inputs: The speaker clips will accept bare wire up to 14 gauge.

Optional Bracket: The NCBR6 new-construction bracket (sold separately) can be used to simplify installation in new construction.