MG-10 / MG-20
Esoteric
Loudspeaker Line
The Technology
Three way joint venture partners
OUTLINE
Exclusive Esoteric magnesium
(Mg) diaphragm technology with
proprietary chemical coating
meets elegant British assembly.
The world’s first all magnesium
diaphragm two way loudspeaker
system!
KEY FEATURES
Mg alloy diaphragm technology
• Esoteric exclusive Mg technology, ceramic coating and corrugation
• World’ first Mg diaphragm 2 way loudspeaker
• Exceptionally high resolution
• Crystal-clear transparency
• Free from carbon fiber, Kevlar, metallic and paper
resonance typically associated with other driver materials
KEY FEATURES
British engineering, integration and production
• Designed by Esoteric acoustic engineering
• Exclusive protective magnesium coatings developed in Japan
• Acoustic engineering and cabinetry by TANNOY, Ltd. U.K.
• Final manufacturing and tuning in Scotland by TANNOY, LTD. U.K.
TECHNOLOGY - MG DIAPHRAGM
What are the elements required for
high performance diaphragms?
1. Low mass
High resolution / high sensitivity
Capability to reproduce extremely delicate notes
Magnesium (Mg) is the most “sonically neutral,”
and most lightweight industrial metal known!
2. Fast sonic propagation
Sharp focus
True to life dynamics
Mg, three times faster acoustic response rate
compared to paper cones!
TECHNOLOGY - MG DIAPHRAGM
What elements are required for
high performance diaphragms?
3. High rigidity
Precise piston motion
Reduced distortion
Mg, the highest rigidity among industrial metals!
4. High internal dissipation
Better resonance control / reduced coloration
crystal-clear transparency
Mg, highest internal dissipation among industrial metals!
TECHNOLOGY - MG DIAPHRAGM
PaperTitaniumAL alloyMg alloy
1
(g/cm3)
2
propagation (m/s)
3
dissipation
0.504.502.741.77Specific gravity
1650494048904880Sonic
0.040.0020.0020.004Internal
¾ Low mass = high resolution and higher sensitivity!
¾ Three times faster than paper allowing a very fast acoustic response!
¾ Free from all metallic resonance and acoustic coloration known to exist in other
metals, treated paper, carbon fiber and Kevlar
TECHNOLOGY - MG DIAPHRAGM
Esoteric acoustic engineering and exclusive Mg coating
technology produced with NIPPON KINZOKU Tokyo
1. Extra-thin two layer coating to protect and seal the
proprietary magnesium compound
(Organic membrane + specialized ceramic coating)
9 Better anti-resonance capability without loss in sensitivity
9 Protection against rust, oxidation, volatility and other
environmental influence
2. Corrugation technology
9 Carefully designed resonance control technology
9 Proprietary application
Goal: Maximize Mg performance through superior
resonance control!
TECHNOLOGY - MG DIAPHRAGM
Impulse response characteristics
AL TI Mg
Conventional metal diaphragms have a very fast response rate and slow decay.
This clearly creates metallic coloration and adds resonance.
Esoteric’s Mg cone designs have a very fast decay thanks to their higher
internal dissipation and resonance control technology (Proprietary ceramic coating
and corrugation). Furthermore, Mg is acoustically neutral and “color free.”
TECHNOLOGY - MG DIAPHRAGM
Mg - Sonic character / basic advantages
9 Higher resolution
9 Ultra high sensitivity
9 Exceptionally smooth response
9 Crystal-clear transparency
9 Sharp focus and precise imaging
Benefits:
9 Delicate strings, lively
percussion
9 Natural vocalizations
9 Lack of coloration –
(acoustically neutral)!
THE REVIEWS
• Stereophile / Aug. 2008… “None of this technical precision was achieved by the
speakers diluting the musical message. It doesn’t get much better than that…..a
shoo-in for class A category…….. recommended components……”
• UltraAudio.com / June 2008 …“The Esoteric MG-20 has changed what I thought
was possible from a dynamic driver…”
• SoundStage Networks / May 2008…” The MG-10 possesses all of the qualities
that you might expect from a mini-monitor -- speed, articulation, transparency, tonal
accuracy, and incredible sound staging.”
• JazzTimes / Jan. 2008… “the sound was very, very solid and evidenced extreme
clarity in addition to the authoritative weight.”
• The Absolute Sound / Dec. 2007… “The MG-20 is the most musically compelling
box speaker I’ve heard to date – a perfect example of technology in the service of
music.”
• Stereophile / Oct. 2007… “Esoteric is celebrating its 20th anniversary this year.
With products like these new Mg-series speakers, it looks as if they will be around at
least another 20 years.”
THE AWARDS (so far…)
MG-20
The Absolute Sound 2008 Golden Ear Award
and 2008 Editor’s Choice Award
MG-20
Stereophile “Class A”
Recommended Components 2008
MG-20 Stereo Sound Japan
2007 Grand Prix Award
MG-20
Swing Journal Magazine
2007 – 19thJazz Component Award
First prize “The Best Loudspeaker”
MG-10
Innovations 2008 CEA Design and Engineering
Award Honoree (For New Technology)
OTHER FEATURES
Ultra high grade components
- ICW ‘ClarityCap’ film capacitor for HF network (UK made)
- Large and low loss laminated silicone steel core inductor
- Hard wired network / no PCB board
- van den Hul high purity, silver coating connecting wire
- Bi-wire terminal with “earth point” to minimize RF interference
Rigid enclosure construction
- Specially selected Birch enclosure (front baffle: T25mm)
- Non-parallel side panels prevent internal standing waves
- Solid American cherry side wood rails for rigid baffle joints
- Extensive cross bracing and heavy interior acoustic damping
Elegant finish
- Individually selected, American cherry wood veneer, oil rub
MG-10 / MG-20
The Esoteric loudspeaker line
An integration of completely new diaphragm
materials and internal technologies, newly
developed sound engineering applications
and state of the art British assembly techniques!
SPECIFICATIONS
ENCLOSURE VOLUME
ENCLOSURE WEIGHT
RECOMMENDED AMPLIFIER
POWER
POWER RATING
NOMINAL IMPEDANCE
MINIMUM IMPEDANCE
FREQUENCY RESPONSE (-6dB)
Note: Below 40 Hz a sub is
recommended
MG-10MODEL
900 x 216 x 271 mm (35 7/16 x 8 1/2 x 10 11/16”)440 x 216 x 271 mm (17 1/3 x 8 1/2 x 10 11/16”)CABINET DIMENSIONS (H x W x D)
ReflexENCLOSURE TYPE
20 to 170 watt per channel20 to 120 watt per channel
89 dB for 2.83 volt at 1 meter, half space87.5 dB for 2.83 volt at 1 meter, half spaceSENSITIVITY
6 ohm
1.9 kHzCROSSOVER FREQUENCY
MG-20
21.5 liter 7.5 liter
14 kg (30.9 lbs)7.5 kg (16.5 lbs)
90 watt RMS75 watt RMS
360 watt peak300 watt peak
3.7 ohm3.8 ohm
38 Hz – 44 kHz41 Hz – 44 kHz
CROSSOVER TYPE
DRIVER TYPE
High density birch ply. Internally cross braced and heavily damped. American Cherry wood veneersCABINET CONSTRUCTION
Designs and specifications subject to change without notice. ©TEAC Esoteric Company. All rights reserved.
2nd order LF, 3rd order HF. Bi-Wired, Hard-Wired passive, low loss.
25mm (½ “) magnesium dome HF
2 x 165mm (6 ½ “) magnesium cone LF165mm (6 ½ “) magnesium cone LF
Esoteric MG-10 and MG-20 Loudspeakers
Optimum Listening Positions
Cross axis point
Optimum listening
positions (1-3 feet
behind the cross axis).
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