Definitive Technology Mythos XTR50

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Definitive Technology Mythos XTR-50 Ultra-Slim Speaker

The Definitive Mythos XTR-50 is a high performance on-wall speaker that has been designed to perfectly complement today's ultra-thin TVs. Beyond its utility and clean modern styling the XTR-50 stands out thanks to its uncompromising sound quality. Definitive's engineers have unleashed their awesome creativity and brain power to develop this revolutionary speaker that has the high definition detail and dynamic range performance of large speakers yet is a mere 38mm deep. No other speaker complements your ultra-slim television with more style, versatility and sheer performance.

Revolutionary XTDD Technology Drivers

The secret to the XTR-50's extraordinary performance is Definitive's patented XTDD technology anodised Aluminium dome driver. Using advanced computer modeling and decades of speaker design experience, Definitive engineers eliminated every iota of wasted space, optimised every part and maximised the moving surface area of a dynamic driver to shrink it down to an impossibly compact dimension without giving up ultra high performance audio fidelity. The XTDD driver has the kind of dynamic punch, wide frequency range and broad dispersion that flat vibrating membrane panel-type speakers simply cannot match.

To extend and deepen the bass response of such an impossibly thin speaker the XTDD drivers are pressure coupled to four anodised Aluminium dome bass radiators. The centre-mounted tweeter is the same hyper-definition Pure Aluminium Dome Tweeter found in Definitive's award-winning province-of-the-art Mythos ST SuperTower®. The total effect is the kind of clarity, dynamic range and extended response that one would expect from a premium-priced normally-sized speaker. Your friends and family will be agog with amazement when they hear the huge rich sound that comes out of the wafer-thin XTRs.

Aircraft-Grade Aluminium Enclosure Saves Space and Improves Performance

Another secret to the XTR-50's astounding thin profile and superior performance is its aluminium cabinet. By specially shaping the enclosure and incorporating stiffing ribs and channels, Definitive made the space-efficient aluminium extrusion ultra-rigid and resonance-free. The magnets of the XTDD drivers protrude through the rear wall of the enclosure to further minimise depth. A thermally conductive gasket seals the enclosure/magnet interface and transfers heat from the driver's rare-earth magnet to the enclosure, making the whole enclosure a giant heat dissipater

Ultimate Placement Versatility

The XTR-50 comes supplied with everything you need to use place it wherever you want to use it. The XTR-50 can be mounted directly to the wall using the key-hole slots on the back of the enclosure and well-anchored screws. If you choose, the speaker can be wall mounted using the supplied mounting bracket that allows either vertical or horizontal orientation with a total installed on-wall depth of only 40mm. Two adjustable support feet are supplied in cases where you place the XTR-50 on a shelf as a centre channel speaker (horizontal orientation). For vertical shelf or table top placement the XTR-50 comes with a beautiful tempered smoked glass base. Whether you're mounting it on wall or on shelf, as Left and Right, Centre or Surround channel speakers the Mythos XTR®-50 is ready to look terrific and sound astounding.

This award-winning compact parcel of innovative brilliance has it all - drop-dead gorgeous styling, ultimate placement versatility and big speaker sound quality.


Drive units:

1x 25.4 mm (1") Tweeter
2x 88.9 mm (3.5") Mid/Woofer
4x 88.9 mm (3.5") Bass Radiator

Frequency response:

92 Hz Hz → 30 kHz kHz

Max Sensitivity (1 watt @ 1 metre):

92 dB

Dimension (H x W x D):

685.8 x 152.4 x 38.1 mm
27" x 6" x 1.5"


2.38 Kg (5.25lbs)

Included Accessories:

Smoked Glass Table Stand 
Horizontal Level Adapter
Horizontal Leveller Foot
PureFlat Wall Mount
Connector Block
Wall Mounting Template
Magnetic Logo

Manufacturer's Warranty*:

5 Years Cabinet & Drivers


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