Definitive Technology Mythos Gem Review

There's something almost absurd about picking up a pair of audiophile-grade satellite speakers for $6 at Goodwill — but that's exactly the kind of deal the Definitive Technology Mythos Gem turns up in. One Reddit user stumbled onto a pair at their local thrift store and immediately started asking the right question: are these actually any good, and what should they be paired with?

The short answer is yes, they're genuinely quality speakers. The longer answer is what makes the Mythos Gem interesting.

What the Mythos Gem Actually Is

The Mythos Gem is a compact satellite speaker from Definitive Technology's premium Mythos line — designed to blend into a living room without looking like a piece of AV equipment bolted to the wall. The cabinet is a sleek, gloss-finished design with an aluminum tweeter sitting above a mid-bass driver. It's a genuinely attractive speaker, the kind that a non-audiophile partner might actually approve of in the living room.

But don't let the small footprint fool you. Definitive Technology built these as legitimate music and home theater performers, not decorative afterthoughts. The Mythos line sits above their entry-level products and was designed with serious surround and stereo applications in mind.

Surround Duty: Where These Shine

The community consensus is that the Mythos Gem works exceptionally well as a surround or rear channel speaker. Their compact size makes placement flexible — ideal for the kind of gaming room or dedicated home theater builds where you want speakers that can be repositioned without wrangling big floor-standers around furniture.

For anyone building a surround setup, the recommended approach from the Definitive community is to pair the Gems with larger Mythos front channels. The Mythos STS SuperTower or the Mythos ST are frequently cited as ideal front-of-room companions, maintaining tonal consistency across the soundstage. Mixing Definitive Technology lines can work, but staying within the Mythos family gives you better timbre matching — something you'll notice on film dialogue and music.

That said, these do need a subwoofer. As satellite speakers, the Gems don't go deep on their own. Run them with a capable sub (Definitive Technology makes their own, which integrate predictably well) and cross them over appropriately, and the system clicks into place.

Build Quality and Aesthetics

The gloss finish looks genuinely premium, especially at the price points these appear at on the used market. The aluminum dome tweeter is a distinguishing feature — smoother and more refined than the plastic tweeters you find on similarly sized budget competitors. Placement options include stands, wall mounting, or shelves, which adds practical flexibility for room layouts.

The Value Equation

Here's where the Mythos Gem gets genuinely compelling: the used and refurbished market for these is active, and prices are often dramatically below original MSRP. Finding a pair for under $50 used is not unusual. At that price, the Gem competes with new budget speakers at two or three times the cost — and wins on build quality and sound clarity almost every time.

At original retail, the calculus shifts slightly. You're paying for the Definitive Technology brand and the Mythos aesthetic. For a living room setup where looks matter alongside sound, that premium can be worth it. For a purely performance-per-dollar comparison with no aesthetic consideration, there are more affordable alternatives.

Who Should (and Shouldn't) Buy This

The Mythos Gem is a strong pick for:

• Home theater builders who want compact surrounds that don't look out of place in a designed room
• Anyone building or expanding a Definitive Technology Mythos system and needing rear channels
• Used market hunters — this is one of those products that punches well above its secondhand price
• Gaming room setups where flexibility and easy repositioning matter

It's less ideal for:

• Standalone stereo listening without a subwoofer — the low-end rolloff is real
• Buyers who want a full-range speaker in a single unit
• Anyone already invested in a non-Definitive Technology ecosystem who'd face timbre mismatch with existing speakers

Frequently Asked Questions

Q: Are the Definitive Technology Mythos Gems good surround speakers?

A: Yes — the community consensus is that they perform well as surround or rear channel speakers, particularly when paired with other speakers in the Definitive Technology Mythos lineup for tonal consistency.

Q: Do the Mythos Gems need a subwoofer?

A: Yes. As compact satellite speakers, they don't reproduce low bass on their own. Pairing them with a dedicated subwoofer and setting an appropriate crossover point is strongly recommended.

Q: What speakers pair best with the Mythos Gem?

A: For home theater use, front channels from the Definitive Technology Mythos line — such as the Mythos ST or Mythos STS SuperTower — are the most compatible options for timbre-matched performance across all channels.

Q: Are the Mythos Gems worth buying used?

A: Absolutely. The used market for these is active with prices well below original retail, and the build quality holds up well. At secondhand prices, they represent exceptional value against new budget-tier competitors.

Q: Can the Mythos Gem be used for stereo music listening?

A: They can, but they work best in a system with a subwoofer. As a standalone stereo pair without bass support, the limited low-end extension will be noticeable on music with significant bass content.

— Home Lead Editor, CPrice