Definitive Technology - Mythos Dual 3-1/2" Speaker - Black

This Definitive Technology Mythos XTR-20BP speaker utilizes dual 3-1/2" XTDD anodized-aluminum-dome midrange/bass drivers and a 1" pure-aluminum-dome tweeter with a bipolar driver array to ensure a detailed cross-spectrum soundscape.

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
Build A Bundle

Complete Your Purchase

Definitive Technology - Mythos Dual 3-1/2" Speaker - Black - Larger Front
Item you are currently viewing
See details
Price for both items


What's Included

  • Definitive Technology Mythos Dual 3-1/2" Loudspeaker
  • Vertical level adapter, vertical leveler foot, 2 bumpers, PureFlat wall mount, connector block, wall-mounting template, magnetic logo

Ratings & Reviews

Overall Customer Rating:
100% of customers would recommend this product to a friend (1 out of 1)

Product Features

Handles approximately 20-100W of power per channel

For robust audio. Timbre-matched to Mythos XTR series front speakers (not included).

Dual 3-1/2" XTDD anodized-aluminum-dome midrange/bass drivers

Along with a 1" pure-aluminum-dome tweeter produce a rich, dynamic soundscape to complement your home theater. A bipolar driver array disperses sound across a wide area.

Aircraft-grade-aluminum extruded enclosure

With damping technologies and PolyStone baffles ensures minimal resonance.

PureFlat mount

Lets you attach the speaker to a wall. A support foot allows you to place the speaker on a shelf or table.

100Hz - 30kHz frequency response

For faithful sound reproduction.

Overall Customer Rating

(1 Review)

Product Features Mentioned In Customer Reviews


Looks like there aren't enough negative mentions yet.

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