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Definitive Technology Mythos Gem

Multi-purpose compact home theater speakers

2 Reviews

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Our take on the Definitive Technology Mythos Gem

Compact, versatile speakers deliver rich sound

Enjoy detailed sound from Definitive Technology's most compact multi-purpose speakers — the Mythos Gems. Each speaker houses two 3-1/2" mid/bass drivers that are angled away from each other to create a spacious, lifelike soundstage. They flank a 1" pure aluminum dome tweeter that reveals lots of detail and nuance without adding a trace of edginess.

Driver detail

Slim profile makes it easy to place in your room

The enclosure is made of black hand-polished aluminum for a sleek look that'll go well with most modern décors. A keyhole slot on the back of each speaker allows you to mount them on your walls for out-of-the-way placement, or you can place them on Definitive's matching GemStands. The Gems are voice-matched with the complete Mythos series, so they're perfect for use as compact surround speakers in a system made up of larger Mythos main speakers. Or create a complete Gem home theater system using the Mythos Seven center channel speaker and either the SuperCube 2000 or ProSub 800 subwoofer.

Got wire?

Most speakers don't include any. Learn about choosing and installing speaker wire at the Crutchfield Learning Center.
Shop our selection of speaker wire.

Did you know?
Your new speakers will probably sound better after several weeks of use than they do right out of the box. That's because the material surrounding the woofers will loosen up, allowing the drivers to move more fully. Definitive Technology estimates a break-in period of 24 to 48 hours of playback before the speakers will deliver optimum sound quality. For more information and helpful tips, check out this article from Definitive's website about conditioning your speakers.

Incredible set of speakers.

Nick, Scottsdale, AZ

Featured Video:

What's in the Box:

  • 2 Black satellite speakers
  • 2 Removable cloth grilles
  • 2 Wall-brackets
  • 2 Machine screws
  • Wall-mount template
  • Owner's Manual
  • Online Product Registration card

Product Highlights:

  • acoustic suspension (sealed) enclosure
  • frequency response 60-30,000 Hz
  • sensitivity 91 dB
  • 8-ohm impedance
  • handles up to 200 watts
  • one 1" pure aluminum dome tweeter
  • dual 3-1/2" bass/midrange drivers
  • 5-way binding posts
  • aircraft grade extruded aluminum cabinet
  • gloss black finish
  • keyhole slots and wall-mounting brackets included
  • 4-5/16"W x 10-1/4"H x 4-1/8"D
  • warranty: 5 years
  • Our 60-day money-back guarantee

Definitive Technology Mythos Gem Reviews

Average Customer Review:

2 Reviews

Definitive Technology Mythos Gem

Written by: Nick from Scottsdale, AZ on January 18, 2012

Crutchfield Customer Review (What's this?)

Incredible set of speakers.

Pros: Sound, quality

Cons: None

Big sound small speakers

Written by: ukeyowl from Michigan on March 30, 2011

Crutchfield Customer Review (What's this?)

Crutchfield was great they processed my order and shipped my purchases quickly and accurately. Wonderful company. I purchased two sets of the Mythos Gems one set for surround and one set for rear speakers, I have a set of Mythos 2 for front, Mythos 3 for center and super cube III for sub. To be fair my previous systems was (4) infinity reference 71 MKII with Infinity center and Infinity 500w, 15" sub. The new system has substantially less base for listening to music but it rocks for movies. The clarity with the new system is amazing. I haven't had much time to play with the system yet, I miss the base hence the 4 stars. I am hopeful that once I get everything tuned and figure out the settings for the new system the base will be better. Overall very impressed with the new speakers. P.S. previous receiver was a Denon AVR4802, new receiver is a Onkyo TX- NR3008.




Hands-on research

What's in the box?

Download the Definitive Technology Mythos Gem manual

  • 2 Black satellite speakers
  • 2 Removable cloth grilles
  • 2 Wall-brackets
  • 2 Machine screws
  • Wall-mount template
  • Owner's Manual
  • Online Product Registration card

Product Research

Overview: The Definitive Technology Gem Satellite Loudspeakers provide high-quality sound as a front or back/side surround speaker. Each Gem satellite loudspeaker features two high-definition 3-1/2 inch high definition mid/bass drivers for life-like clarity and three-dimensional imaging and a 1-inch (25mm) pure aluminum dome tweeter for high frequency extension, detail and, smoothness. Each Gem satellite loudspeaker utilizes angled drivers to disperse the sound over a broader area. The satellite speakers feature a hand-polished gloss aircraft-grade extruded aluminum enclosure with proprietary damping technologies to ensure total rigidity and accurate sound. The satellite speakers can be placed on a table-top or wall-mounted.

Driver Technology
Enclosure Design
Mounting Options

Driver Technology

Angled Drivers: Each Mythos Gem contains two 3-1/2 inch long-throw mid/bass drivers that are angled in opposite directions to broaden the midrange dispersion. The bass roll-off of the Mythos Gem is smooth and controlled, allowing it to seamlessly blend with a powered subwoofer, such as Definitive's SuperCubes, for audiophile-grade home theater performance.

Pure Aluminum Dome Tweeter: EachMythos Gem is equipped with a 1-inch ferrofluid-dampened pure aluminum dome tweeter for extended, smooth highs.

Linkwitz-Riley Crossover Network: The Mythos Gem uses a sophisticated Linkwitz-Riley Crossover Network to perfectly blend the drivers into a sonically seamless audio environment.

Break-In Period: The Mythos Gem will sound good right out of the box; however, an extended break-in period of 20-40 hours or more of playing is required to reach full performance capability. The break-in period allows the suspensions to work in and results in full bass, a more open midrange, and smoother high frequency reproduction.

Enclosure Design

Extruded Aluminum Enclosure: The Mythos Gem enclosure is hand-polished gloss back aircraft-grade extruded aluminum with proprietary damping technologies that ensure total rigidity. All components are mounted on a resonance-free PolyStone baffle. These construction technologies along with state-of-the-art drivers and tweeter serve to deliver high quality sound with a wide soundstage, pinpoint imaging, high dynamic impact, and superb realism.


Binding Posts: Each Mythos Gem is equipped with a pair of gold-plated, 5-way binding posts to attach your receiver's speaker wire.

Mounting Options

Mounting: The Mythos Gem comes with a wall-mount bracket, so you can easily mount the speaker on the wall (mounting screws not included). The Mythos Gem also features a 1/4"-20 threaded insert for using Definitive Technology's optional articulating wall-bracket (ProMount 80) to mount the speaker on the wall. In addition, the Mythos Gem can be placed on a table-top, shelf, or stand.

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.

Staff Reviews

Product reviews from the Crutchfield Labs

Definitive's Mythos speakers offer audiophile performance in a sleek, stylish package. Learn about what makes these speakers different in this short overview.

What are the Labs?
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

I am replacing an older pair of Polk RM's for front height speakers to match better with my Mythos Two's I use for the fronts and my Mythos three center channel. [ Michael  Feb 11, 2016 ]

Looking for more? Check out the next model in this lineup.

Definitive Mythos Gem XL Each

Want bigger, beefier sound?

The Definitive Technology Mythos Gem XL offers these features:

  • has dual 4-1/2" bass/midrange drivers for fuller mids and deeper bass
  • reproduces frequencies down to 50 Hz