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No room for speakers? No problem. Infinity's ERS 110DT in-ceiling speaker, sold individually, lets you enjoy rich, dynamic sound without taking up a single inch of floor space. The speaker installs directly in your ceiling, and features a paintable frame and grille, so it will virtually vanish into your decor. And thanks to the ERS 110DT's innovative design, you get stereo sound from just one speaker. It's ideal for areas where installing a pair of stereo speakers isn't practical, like a hallway, bathroom, or kitchen.

The ERS 110DT has inputs for both left and right channels and two 3/4" tweeters (one per channel), so you'll hear both halves of the stereo music mix. And a 6-1/2" woofer with dual voice coils handles the mids and bass. All of the drivers are made with Infinity's exclusive Ceramic Metal Matrix Diaphragm (C.M.M.D.™) material. C.M.M.D. woofers and tweeters are stiff yet responsive for warm, resonance-free performance across the entire audio spectrum. It's the same driver material used on Infinity's flagship Prelude™ loudspeakers, costing thousands of dollars a pair.

The ERS 110DT is designed for easy installation. It features mounting clamps that swing out and securely grip your ceiling from the inside. An optional in-ceiling bracket is recommended for installing the ERS 110DT in a new home under construction (or in a room that's undergoing major renovation).

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Product Highlights:

  • sold individually
  • stereo input speaker
  • dual 3/4" C.M.M.D. tweeters
  • 6-1/2" C.M.M.D. woofer
  • handles up to 130 watts
  • frequency response 47-22,000 Hz (±3dB)
  • sensitivity 88 dB
  • 8-ohm impedance
  • acoustical waveguide for wide sound dispersion
  • paintable speaker grilles
  • cutout dimensions: 8-1/16" diameter
  • mounting depth: 3-9/16"
  • warranty: 5 years
  • Our 60-day money-back guarantee

Infinity ERS 110DT Reviews

Average Customer Review:

3 Reviews

Infinity ERS 110DT

Written by: Sergio from Chicago, IL on October 24, 2014

Crutchfield Customer Review (What's this?)

Great speakers for the price. Can't go wrong. Very easy to install and great sound. Using these speakers for surround sound in the basement. For my space they work great.

Pros: easy to install, good sound

Cons: cannot position tweeter

Joe St

Written by: Joe St from Sauk Rapids, MN on September 10, 2014

Crutchfield Customer Review (What's this?)

very good sound, easy installation. very good value for the price.



Infinity Ceiling Speakers

Written by: KN from Michigan on August 20, 2014

Crutchfield Customer Review (What's this?)

These are good speakers for sides and surround. Clear highs and good mids. Would be a 5 if they had a little more bass to them.

Pros: easy install, good highs and mids.

Cons: Lack the low tones

Hands-on research

What's in the box?

Download owner's manual

  • 1 White in-wall/ceiling speakers
  • 1 White grilles
  • 1 Plastic paint shield
  • Cardboard mounting cutout template
  • Infinity Logo Sticker
  • Owner's Guide
  • Warranty information

Features and Specs

Enclosure Type In-ceiling
Video Shielded No
Tweeter Dome
Midrange Size ---
Woofer Size 6.5
Woofer Composition C.M.M.D.
Woofer Surround Rubber
Power Range (Watts) up to 130
Sensitivity 88 dB
Impedance (Ohms) 8
Frequency Response 47-22kHz
Connector Type Spring Clip
Bi-Amp Inputs Stereo input
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research

Mounting Options


Ceramic Metal Matrix Diaphragm (C.M.M.D.): Infinity's C.M.M.D. technology delivers accurate performance with dramatically reduced distortion for incredibly lifelike sound. Additionally, the C.M.M.D. drivers can withstand extreme temperatures, moisture, humidity and sunlight.

Woofer: The 6 1/2" C.M.M.D. dual-voice coil cone woofer virtually eliminates coloration due to cone flexing, resulting in less distortion and superior accuracy. For a smoother response and improved durability, the woofer uses a rubber surround.

Tweeters: The speaker has dual 3/4" C.M.M.D. dome tweeters that offer superior stiffness and damping compared to traditional metal domes.

Waveguide Design: The ERS 110DT incorporates a proprietary waveguide design to ensure smooth distribution of sound throughout the listening area.

Mounting Options

Installation: The round shape and flush-design allow the ERS 110DT to mimic the look of a recessed lighting fixture. This speaker is a single stereo speaker which makes it a perfect install in bathrooms, hallways, and any other area where you do not have room, or the desire, to install more than one speaker. The speaker requires a cutout diameter of 8.066" and a depth of 3.519" (including the thickness of the drywall). Once the hole is cut, the speaker can be dropped in and the locking tabs can be tightened, allowing you to secure the speaker to the drywall without any extra assembly.

Note: For new construction, you will need to purchase the optional rough-in-frame kit (item 108IW6RRIF).

Paintable: The grille and flange can be painted, allowing this speaker to match any decor.

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 verify what’s in the box, 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.