MB Quart - X-Line 5.25" Coaxial Speaker with Polypropylene Cone - Black
MB Quart X-Line Coaxial Speaker: This speaker features a polypropylene cone and rubber surround, as well as a titanium-dome tweeter, so you can enjoy rich, high-quality audio while you drive. Dash, door or trunk installation offer versatile mounting.
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.



Normal Wear & Tear • Power Surges

Plan Details

See All Plans
Protection Plan Options
Cardholder Offers

Complete Your Purchase

MB Quart - X-Line 5.25" Coaxial Speaker with Polypropylene Cone - Black - Larger Front
Item you are currently viewing
See details
Price for both items


What's Included

  • X-Line 5.25" Coaxial Speaker with Polypropylene Cone
  • 6" x 8" adapter plate
  • Owner's manual

Product Features

Geek Squad® installation

your local Best Buy store

Handles up to 70W peak power (35W RMS)

For robust audio performance.

55Hz–32kHz frequency response

To accurately reproduce sound.

Injection-molded polypropylene cone

With butyl rubber surround delivers rich midrange audio. Temperature-resistant PA66 composite baskets ensure reliable operation.

Titanium-dome tweeter

Produces crisp, smooth high notes with minimal distortion.

4 ohms impedance

To efficiently conduct power.

Dash, door or trunk mounting options

For versatile installation. A 6" x 8" adapter plate enables flexible mounting.

Product images, including color, may differ from actual product appearance.