Infinity ERS 210

In-wall speakers

  • Infinity ERS 210


  • Infinity ERS 210


Item #: 108ERS210
This item is no longer available to purchase.
Contact us for other options
Call   Email  

Our take on the Infinity ERS 210

by James Ralston

Infinity bookshelf and tower speakers have long been known for their precise detail and spacious imaging. Now you can enjoy the same great Infinity sound from speakers that hide away in your walls! The ERS 210 features a 6-1/2" woofer and 3/4" tweeter — both are made of Infinity's rigid, lightweight C.M.M.D. (Ceramic Metal Matrix Diaphragm) driver material, ensuring accurate response. A proprietary waveguide design disperses sound evenly throughout your room, for impressive imaging.

The ERS 210 is ideal for multi-room audio, and also does a great job for home theater surround speaker applications. The grilles and grille frames are white, and can be painted to match any decor.

Optional rough-in frame kit (see "Accessories") is required for installing the ERS 210 in new construction. For detailed information on how to install in-wall speakers, see our free guide, "How to Install the Speakers, Outlets, and Controls," available on our Multi-room Audio Guides download page.


  • frequency response 48-20,000 Hz (-3dB)
  • 8-ohm impedance
  • sensitivity 88 dB
  • handles up to 125 watts
  • locking tab mounting system for simplified installation
  • paintable white satin finish on grilles and grille frames
  • optional rough-in kit required for new construction
  • cutout: 7-11/16"W x 11-3/8"H
  • mounting depth: 2-11/16"
  • warranty: 5 years

Priced per pair

See more info on this item

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure Type In-wall
Video Shielded No
Tweeter Dome
Midrange Size N/A
Woofer Size 6.5
Woofer Composition C.M.M.D.
Woofer Surround Rubber
Power Range (Watts) 125
Sensitivity 88 dB
Impedance (Ohms) 8
Frequency Response 48-20kHz
Connector Type Spring clips
Bi-Amp Inputs No
Parts Warranty 5 Years
Labor Warranty 5 Years
Product Research
What's in the box?

Download owner's manual

  • 2 White in-wall speakers
  • 2 White grilles
  • 2 Plastic paint shields
  • 1 Mounting cutout template
  • Owner's Guide

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.


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.

Woofers: The 6- 1/2" C.M.M.D. cone woofers virtually eliminate coloration due to cone flexing, resulting in less distortion and superior accuracy. For a smoother response and improved durability, each woofer uses a rubber surround.

Tweeters: Each speaker has a 3/4" C.M.M.D. dome tweeter that offers superior stiffness and damping compared to traditional metal domes.

Waveguide Design: The ERS 210 incorporates a proprietary waveguide design to ensure smooth distribution of sound throughout the listening area.

Paintable: The grilles and flanges can be painted, allowing these speakers to match any decor.

Installation: Each speaker requires a cutout 7.645" wide, 11.34" high and a depth of 2.664" behind the drywall. Each speaker frame is 8.761" wide and 12.75" high. Once the holes are cut, each speaker can be dropped in and the locking tabs can be tightened, allowing you to secure each speaker to the drywall without any extra assembly.

Note: For new construction, you will need to purchase the optional ERS210RIF rough-in-frame kit (item 108210RIF).

Be the first to review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Add accessories for the Infinity ERS 210

Have your speakers installed by qualified professionals. See all categories & accessories

Niles SSVC-4 4-pair speaker selector with volume control
7 people say
Your Price: $399.99
Add to Cart
Niles SS-4 4-pair speaker selector
22 people say
Your Price: $129.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

For a more in-depth review and enhanced detailed information on the Infinity ERS 210, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_108ERS210/Infinity-ERS-210.html ).