holiday snowflake
Expert Advisors
FREE shipping on all orders

  Definitive Mythos ST Each Slim Tower Speaker With
Enter the Crutchfield Research Centre & A/V
Floor-standing speaker with built-in powered subwoofer

4 people say

Product Code: 735MYTHST

Overview Details Accessories

Overview: The Definitive Technology Mythos ST SuperTower is a tower loudspeaker with a built-in powered subwoofer. The Mythos ST SuperTower design offers a truly full-range loudspeaker that combines the accuracy, imaging, and detail retrieval of a monitor speaker with the depth, dynamics, and bass output a separate powered subwoofer into one visually attractive, small-footprint enclosure. The Definitive Technology Mythos ST SuperTower utilizes a 1-inch pure aluminum dome for extended highs and two 5-1/4 inch high-definition cast-magnesium basket midranges for smooth sounding vocals. The Mythos ST SuperTower also features a "racetrack" shaped carbon fibre active driver powered by a built-in 300-watt Class-D amplifier and pressure-coupled to two "racetrack" shaped low-bass radiators equal to the surface area and bass output of a 15-inch woofer but with far greater control, definition and speed; eliminating the need for a separate subwoofer. The ST SuperTower features a and-polished gloss aircraft-grade extruded aluminum enclosure with proprietary damping technologies and polished granite base to ensure total rigidity and stability. The Mythos ST SuperTower has been engineered for music listening and home theatre enjoyment.

Driver Technology
Built-in Powered Sub
Enclosure Design
Mounting Options

Driver Technology

BDSS Technology: Definitive Technology's Balanced Double Surround System (BDSS) driver offers a wide-bandwidth accurate frequency response, broad dispersion, low distortion, and detail retrieval; so you hear more the music with greater accuracy and enjoyment. BDSS drivers incorporate the following design features.

  • Balanced Double Surrounds: The speaker's balanced double surrounds support the cone at two points to provide better mechanical stability for longer, more linear excursion, and improved damping to suppress parasitic cone resonance.
  • Mineral-Filled Polymer Cone: The loudspeaker features a deeply drawn mineral-filled polymer cone engineered using sophisticated 3D modeling techniques for wide range performance.
  • Waveguide: The cone's integrated waveguide smoothes off-axis response for broad, even dispersion and better imaging.
  • High Temperature Voice Coil: The driver's high temperature, oversized, lightweight vented voice coil offers improved power handling and quick transient response. The voice coil is also lengthened to increase linearity and lower distortion.
  • Magnet Structure: The driver's magnetic system is optimized by finite element analysis to maximize magnetic flux in the gap for high efficiency and linear excursion.
  • Die-Cast Alloy Basket: The die-cast alloy basket minimizes ringing and vibration while the open area minimizes back wave reflection.

High Definition Midranges: The Mythos ST SuperTower contains a D'Appolito array consisting of two high-definition 5-1/4 inch drivers surrounding a 1-inch dome tweeter housed in an acoustically isolated sealed enclosure. The drivers feature Definitive's patent-pending Balanced Dual Surround System (BDSS) technology that supports the speaker cone at both the inner and outer edges for longer, more linear excursion, greater clarity, and finely textured inner detail. The driver baskets are die cast Aluminum.

Pure Aluminum Dome Tweeter: The tweeter is a pure aluminum dome, which has been heat-treated to relax the crystal structure and then coated with a ceramic to produce extended, smooth highs.

Magnetically Shielded: The Mythos ST SuperTower is magnetically shielded for safe placement near your television.

Break-In Period: The Mythos ST SuperTower will sound good right out of the box; however, an extended break-in period of 40-60 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.

Built-in Powered Sub

Powered Subwoofer: The 6 x 10-inch "racetrack-shaped" polymer/carbon composite subwoofer is powered by a built-in 300-watt Class D amplifier and pressure-coupled to two 6 x 10-inch "racetrack-shaped" planar low-bass radiators for a total bass radiating area greater than a 15-inch woofer; but with far greater control, definition, and speed. A pair of ST tower loudspeakers is like having two 15", 300-watt powered subwoofers in your room without taking up anymore floor space. The result is bass that is deep, powerful and impactful while at the same time having tight, controlled, and accurate response. The built-in powered subwoofer also provides the following features.

  • Auto Turn-On: The Mythos ST's built-in active power subwoofer section must be plugged into an electrical socket using the supplied 10' AC cord. The Mythos ST has a special circuit which automatically turns the powered subwoofer section on when a signal is fed to the loudspeaker and turns off when there is a no signal (for 1-hour).
  • LED: An LED on the back-panel will light up when a signal is sensed and the amplifier turns on. The LED will automatically turn-off when there is no signal (for 1-hour).
  • Built-In Crossover: Definitive's engineers have perfectly adjusted the crossover and phase between the subwoofer and main speaker sections of the Mythos ST SuperTower to achieve seamless blending and life-like sound.
    • Note: Please not that there are no controls to vary the crossover points or phase because these have been factory calibrated and set to provide perfect blending.
  • Level Control: The Mythos ST SuperTower has a bass-level control which allows you to tune the output level of the built-in powered subwoofer section to match your room and personal listening preferences.
  • Protection Circuit: To prevent accidental damage to the subwoofer built-in the Mythos ST SuperTower from overdriving the system, the built-in powered subwoofer section features an internal overload protection circuit, which will turn the powered subwoofer off or down when overdriven or overheated and will then resume normal operation after a few minutes.

Enclosure Design

Curved Extruded Aluminum Enclosure: The enclosure is extruded aluminum with internal ribs for stiffening purposes. Strips of damping material are adhered to the inside of the extrusion to suppress ringing. The baffle is "Polystone" a dense and non-resonant mineral-filled polymer material that is slightly oversized and is force-fit into the extrusion "mouth" to prevent the aluminum from ringing. The midrange/tweeter array is isolated from the woofer enclosure by two pieces of MDF. Both woofer and mid/hi enclosures are sealed. The slim, curved shape of the enclosure reduces diffraction contributing to the ST's broad imaging and deep soundstage.


Speaker-Level & Line-Level Connections: The Mythos ST SuperTower is equipped with a pair of gold-plated, 5-way binding posts to attach your receiver's speaker wire and a gold-plated, mono-RCA/LFE input to connect your receiver's LFE/subwoofer output.

Mounting Options

Granite Base with Adjustable Feet: The granite base combined with the heavy Toroidal transformer mounted on the bottom plate of the loudspeaker's enclosure provides a low centre of gravity for superior stability. The base incorporates 5 adjustable-height metal feet that may be fitted with either smooth furniture glide tips for wood and ceramic floors, or spikes for carpeted floors.

Applications: The precise accuracy, wide-range response, and high impact dynamic range of the Mythos ST allow you to use the speaker in most home audio/video system's ranging from a 2-channel music-only to a 7.1 channel home theatre system. When used as a stereo pair, simply connect it with speaker wire as one would any pair of speakers; there is no benefit to using the low-level LFE inputs. When using the ST in a multi-channel system there are two options.

  • Connect speaker wire as in a stereo system; set bass management as Front=Large, Subwoofer=None
  • In addition to speaker wires connect low-level cables from the LFE/Subwoofer output of the receiver/processor to the LFE inputs of the ST (Y connector is usually required). Set bass management as Front=Large, Subwoofer=Yes. The benefit of this hook up method is that one now has the ability to control the level of the LFE channel relative to Front L&R bass.

Placement: The Mythos ST SuperTower loudspeaker can be used as a Main or Surround speaker.

  • Fronts: When used as a front main speaker, you should create an equilateral triangle between the speakers and your listening area. The speakers should be angled toward the centre of the listening position for brighter, clear, sound with a sharper focus and a more solid central image. Pointing the speakers straight forward, parallel with each other , will result in a warmer less sharply focused sound. To get the best possible imaging and most even tonal response, avoid placing the speakers less than 3-feet (1-Metre) from your room's walls.
  • Surrounds: When used as rear or surround speaker, the Mythos ST may be located on the side or behind the listeners. When used on the sides, take care never to locate the speakers forward of the listeners. When the side/rear speakers are close to the listening position, do no aim the speakers directly at the listeners.

Definitive Technology Mythos ST SuperTower® Reviews

4 people say

Worth Every Penny March-16-14
Reviewer: BillH from Hollywood, FL  
I've had these speakers about a year now and absolutely love everything about them.  The sound quality is simply amazing, whether you listen to classical, jazz, country, movies or dance music every facet of the sound is dead-on, highs are clean and clear, mid-range is pronounced and the bass is equally stunning.  I use them in a 7.2 configuration paired with Definitive Center and 4 - in-ceiling speakers and they are worth every penny.  I'm extremely happy with my purchase.

As Advertised March-11-14
Reviewer: ChrisS from Louisville KY  
I bought Mythos STs for left and right channels in a rig for both music and home theater. They are paired them with a Sony DA5800ES.  The reviews from the introduction of these speakers back in 2008 are strong and they perform as advertised. They sound great. They look quite nice. They have a small footprint on the floor and are forgiving in response to placement in the room. They are especially well suited for someone who wants great sound straight out of the box. Definitive is not kidding when they say that inclusion of the sub in the speaker allows for precise balancing of the sub with the other components. There's only one dial. The recommended setting of that dial sounded great in my room.

Response to other review April-02-11
Reviewer: Angel G. from Tucson, AZ  
Just wanted to post a response regarding your subwoofer reference.  Multiple subwoofers are always more difficult to setup than a single sub.  The reason why you have the differences in output even if you have the same setting on each speakers is because of your room and speaker placement.  Unless your room is uniform and the distances are exactly the same behind and to the sides of the speakers, the subwoofers are going to perform differently.  To set them up properly you should use an spl meter.  I setup the subs on my BP7000SCS one at a time and a little louder than the rest of the system.

Reviewer: Steve from Las Cruces, NM  
I've had my pair of ST's now for a month. I'm very pleased with them. They  are set up in a dedicated 2 channel audio only acoustically treated room.  They sounded promising right out of the box. Def. Tech. recommends  40 to 60 hours or more of break-in time to start sounding their best. I have  about 90 hours on them. The sound continues to improve. The midrange is  getting smoother and warmer. The highs are getting cleaner and more  open. And the bass! It's amazing the amount and quality of it in this small  package. After finding the right location for them, and getting the bass level  adjusted, I'm getting solid clean, tight bass to 30hz. I can't forget to mention  the imaging. They produce a wide and deep soundstage like a mini  monitor. In my room these speakers do acoustically dissapear.  

The only thing that I see that could use improving is the calibration of the  bass level knob. It is very touchy. A 1 or 2 millimeter amount of adjustment  can change the bass level by 1 to 2 db. Plus I found that the knobs on my  pair don't track the same. Meaning that when set to the same apparent  level, are off in actual output level. It was a little frustrating until I discovered  the source of the imbalance.  

Overall I think they are an excellent value considering you are getting high  quality speakers, along with a pair of powered sub-woofers.

Browse for more products in the same category as this item:

Home Audio > Speakers > Floor-standing speakers
Home Audio > Speakers
Home Audio

Definitive Technology Mythos ST SuperTower® CAD $2,159.99