Dynaudio Esotec MW 172 Manual

Dynaudio Højttaler Esotec MW 172

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Esotar / Esotec
16mm
4,5mm
27mm
Mounting hole ø86mm
6holes ø4,3mm on ø101mm
ø111
1.2μF
8.2Ω
Soft Dome Tweeter Esotar² 110
Dynaudio has relied on soft dome tweeters for reproducing natural
high frequencies since the company’s origins, having perfected
the soft dome principle. The Esotar tweeter design requires an
extremely time-consuming labor intensive process where the ne
fabric diaphragm is shaped into a dome and then treated with a
special precision coating.
The best material for a tweeter is experience: Dynaudio has earned a
reputation as a manufacturer of the nest high frequency drivers available
with its venerable Esotar tweeters, and the company has incorporated its
most rened technologies into the new Esotar² 110 reference automotive
tweeter – which purely lives up to the Esotar designation by offering the
most accurate, nuanced and detailed high frequency performance in the
world. The Esotar² 110 represents the state-of-the-art in tweeter design
while never exhibiting a shrill or harsh sonic character typical of metal or
exotic material tweeter designs.
The Esotar² 110 tweeter features a specially coated 28 mm (1.1") diameter
fabric dome, an ultra-lightweight voice coil, an extremely powerful neo-
dymium magnet, and an exceptional CNC-machined metal housing with a
newly-developed damping back chamber. The performance is highlighted
by extremely high power handling, effortless reproduction of dynamics,
absolute clarity, natural tonal balance and incredible resolution.
Thiele Small Parameters
Nominal impedance 6 ΩZnom
DC resistance 5.2 ΩRe
Voice coil inductance - mHLe
Resonance frequency fs 1000 Hz
Mechanical Q factor Qms -
Electrical Q factor Qes -
Total Q factor Qts -
Mechanical resistance Rms - kg/s
Moving mass (incl. air load) Mms - g
Suspension compliance Cms - mm/N
Effective dome diameter 3.1 mmd
Effective piston area Sd 7.7 cm²
Equivalent volume Vas - l
Force factor BL - Tm
Recommended frequency range 2000–30000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 28 mm
Voice coil height 2.8 mmhc
Linear excursion, peak to peak - mm
Max. excursion, peak to peak - mm
Power Handling
Nominal long term IEC 150 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 0.5 kg
Overall dimension ø 111 x 41 mm
Impedance compensation circuit
4 mm
6 holes ø4mm 101 mm on ø101mm
ø110 mm
12 mm
42 mm
90 mm
5.6μF
6.8Ω
Midrange Esotar² 430
The new Esotar² 430 midrange features a geometrically optimized
3.5" diameter MSP (magnesium silicate polymer) cone, a material
providing the ideal combination of stiffness, low weight and excel-
lent inner damping.
The diaphragm and dust cap are molded as one piece. A new magnet/
motor system incorporates powerful neodymium magnets and a large
vented pole piece. The relatively large diameter aluminum voice coil wire
provides for a low moving mass, and is wound on an aluminum former to
maintain the extremely light weight.
Built into a rigid, die-cast solid aluminum frame with aerodynamically
shaped ribs, in conjunction with the powerful motor, the characteristic
Esotar² low-mass driver construction provides excellent transient re-
sponse, speed and precision, with smooth high frequency roll off and a
natural midrange reproduction. The Esotar² 430 driver exhibits very low
distortion even at extreme volumes, while the transparency and detail of
its midrange quality can best be described as holographic.
The Dynaudio Esotar² automotive loudspeaker series represent the high-
est level of automotive music reproduction – not just for Dynaudio but
for the entire arena of mobile audio. The compact Dynaudio Esotar² 430
expands the possibilities for system installations with a performance that
was previously not possible, and is a perfect complement to the perfor-
mance benchmarks set by the Esotar² loudspeaker separates.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 4 ΩRe
Voice coil inductance 0.19 mHLe
Resonance frequency fs 64 Hz
Mechanical Q factor Qms 1.5
Electrical Q factor Qes 0.21
Total Q factor Qts 0.18
Mechanical resistance Rms 1.3 kg/s
Moving mass (incl. air load) Mms 4.9 g
Suspension compliance Cms 1.2 mm/N
Effective dome diameter d 75 mm
Effective piston area Sd 45 cm²
Equivalent volume Vas 3.5 l
Force factor BL 6.2 Tm
Recommended frequency range 200–7000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 34 mm
Voice coil height 9.5 mmhc
Linear excursion, peak to peak 4.9 mm
Max. excursion, peak to peak 21 mm
Power Handling
Nominal long term IEC 150 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 0.47 kg
Overall dimension ø 110 x 49 mm
Impedance compensation circuit
ø169mm
6holes ø4,3mm on ø158
Mounting hole min ø136mm
67mm
5,2mm
15mm @max cone excursion
22μF
4.7Ω
Woofer Esotar² 650
The Esotar² 650 is a 17 cm (6.5") diameter mid/bass driver that is built
on a rigid, die-cast solid aluminum frame and features Dynaudio’s
characteristic MSP (Magnesium Silicate Polymer) diaphragm.
The MSP cone is a proprietary Dynaudio innovation, made in-house and
featuring precisely-shaped, geometrically-optimized form to enable the
smooth, optimized sound dispersion.
The voice coil diameter is exceptionally large at 75 mm, but by using
extremely light aluminum wire wound on a Kapton former, the coil re-
mains extremely lightweight to enable ultra-fast movement. The large
coil enables the magnet to be positioned inside the coil, allowing for a
larger and more homogenous magnetic eld to be utilized. In conjunc-
tion with the incredibly powerful, high-efciency neodymium magnet,
this low-mass driver construction provides excellent transient response,
incredible speed and unmatched precision.
When used as part of a two-way speaker system, the midrange resolution
of the Esotar² 650 is simply beyond reproach; mid-bass remains taught
and accurate while always exhibiting perfect control at all volume levels.
The Esotar² 650 perfectly reects the innovation and performance that
have established the Dynaudio Esotar drivers as the most advanced
high-performance transducers available.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.4 ΩRe
Voice coil inductance 0.33 mHLe
Resonance frequency fs 49.6 Hz
Mechanical Q factor Qms 6.2
Electrical Q factor Qes 0.47
Total Q factor Qts 0.44
Mechanical resistance Rms 1 kg/s
Moving mass (incl. air load) Mms 20 g
Suspension compliance Cms 0.52 mm/N
Effective dome diameter 123 mmd
Effective piston area Sd 120 cm²
Equivalent volume Vas 10.5 l
Force factor BL 6.73 Tm
Recommended frequency range 50–4000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 14 mmhc
Linear excursion, peak to peak 9 mm
Max. excursion, peak to peak 21 mm
Power Handling
Nominal long term IEC 200 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 1.25 kg
Overall dimension ø 169 x 78 mm
Impedance compensation circuit
Max ø297mm
8 holes ø5,3mm on ø285mm
7,5mm
35mm @max cone displacement
Min ø260
143mm
82μF
4.7Ω
Subwoofer Esotar² 1200
The Esotar² 1200 Subwoofer features a unique construction: a mas-
sive dual-stacked magnet system powers a large 75 mm diameter
aluminum voice coil and MSP cone diaphragm.
Dynaudio’s exclusive MSP material provides the ideal combination of
rigidity, light weight and excellent inner damping to naturally reproduce
the lowest frequencies without distortion. The Esotar² 1200 utilizes an
ultra-rigid die cast frame basket to ensure the most anti-resonant founda-
tion of a powerful, accurate and controlled bass response.
Thanks to the innovative Dynaudio construction with precise parameters
and extremely tight tolerances, this newly-designed 30 cm (12") diameter
woofer has been optimized to achieve the most advanced sub-bass
performance. And due to the very low distortion and an amazingly quick
rise response, the Esotar² 1200 is also extremely easy to seamlessly
integrate into any high performance autosound system.
Combining powerful yet deep bass performance with incredible exten-
sion down to 18 Hz, the Esotar² 1200 reproduces the highest sound pres-
sure levels down to the lowest notes by precisely following the amplier’s
signal, even at the highest output levels.
The Esotar² 1200 brings Dynaudio’s most sophisticated engineering and
development into the world of automotive subwoofer systems to establish
another car audio industry benchmark.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.3 ΩRe
Voice coil inductance 1.1 mHLe
Resonance frequency fs 18.7 Hz
Mechanical Q factor Qms 3
Electrical Q factor Qes 0.4
Total Q factor Qts 0.34
Mechanical resistance Rms 4.4 kg/s
Moving mass (incl. air load) Mms 114 g
Suspension compliance Cms 0.64 mm/N
Effective dome diameter 233 mmd
Effective piston area Sd 425 cm²
Equivalent volume Vas 163 l
Force factor BL 11.1 Tm
Recommended frequency range 18–300 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 30 mmhc
Linear excursion, peak to peak 20.5 mm
Max. excursion, peak to peak 58 mm
Power Handling
Nominal long term IEC 400 W
Transient (10 ms) 1500 W
Mechanical Properties
Net weight 8.8 kg
Overall dimension ø 297 x 162 mm
Impedance compensation circuit
Esotar2 EX2-430
The Dynaudio Esotar² EX2-430 is an audiophile quality two-way
passive crossover set designed for the integration of a reference
automotive stereo system comprising a pair each of the Dynaudio
Esotar² 110 tweeters and Esotar² 2 430 mid/range drivers.
A Dynaudio Esotar² 1200 subwoofer (as well as the Dynaudio Esotec MW
172 or Esotec MW 182 woofers if desired) can be added in an active
system conguration.
Esotar² Passive Crossovers
It is not just technology that distinguishes a Dynaudio Esotar² auto-
motive loudspeaker from conventional offerings; it is also the ne
tuning. And just as each Esotar² driver has been meticulously ne-
tuned, so have the Dynaudio Esotar² crossovers.
Only the nest quality components are utilized throughout the Dynaudio
Esotar² passive crossovers, including newly developed at ceramic re-
sistors to further minimize component interaction where needed. Each
features impedance correction while offering selectable level adjustments
for the tweeter. The Dynaudio Esotar² crossovers facilitate a wide range of
systems and applications, and are optimized for perfect phase response
and time coherency in any vehicle. Only the highest quality components
selected solely on the basis of their sonic properties are utilized. The ex-
treme ne-tuning and complete exibility of the Esotar² crossovers allow
the Esotar² automotive loudspeaker drivers to realize the full extent of
their highest performance capabilities.
Esotar2 EX2-650
The Dynaudio Esotar² EX2-650 is an audiophile quality two-way pas-
sive crossover set.
It is designed for the integration of a reference automotive stereo system
comprising a pair each of the Esotar² 110 tweeters and Esotar² 650 mid/
woofers.
EX2-430 Esotar2 430
Crossover frequency 3000 Hz
Nominal impedance 4 Ohms
Dimensions 43 x 102 x 173 mm
Net weight 0.5 kg
EX2-650 Esotar2 650
Crossover frequency 2.400 Hz
Nominal impedance 4 Ohms
Dimensions 43 x 102 x 173 mm
Net weight 0.5 kg
Esotar2 EX3-650 (HF/LF)
The Dynaudio Esotar² EX3-650 is an audiophile quality three-way
passive crossover designed for the integration of a reference
automotive three-way system comprised of an Esotar² 110 tweeter,
Esotar² 430 midrange, and Esotar² 650 mid/woofer.
The EX3-650 is a two-box per channel crossover solution that allows for
bi-amping. For a stereo system installation, a second EX3-650 crossover
(as well as a second unit of each Esotar² driver) would be needed. An
Esotar² 1200 subwoofer may also be added in a fully active system.
Esotar2 Trim Rings
The Dynaudio Esotar² drivers are reference-level loudspeaker com-
ponents capable of revealing even the most subtle sonic details.
To achieve a superb level of sound quality, however, one must pay
attention to the quality of installation and ancillary equipment. The
ultimate level of performance realized will depend heavily on the
above, and there are many points to consider.
To achieve the highest level of sound quality, it is very important that the
loudspeakers are mounted to solid and well-damped bafes and that the
air space behind the woofers is sealed from the vehicle interior. To avoid
rattles and resonance, it is important that surfaces such as inner door
skins, surrounding metal and even exterior panels are reinforced and
damped with quality sound/vibration deadening materials.
The Esotar² driver frame features a unique bolt pattern with the mount-
ing holes on the perimeter of the frame (high grade mounting bolts are
included). To conveniently facilitate ush-mount installations, Dynaudio
offers dedicated installation trim rings featuring CNC machined precision
cut-outs that perfectly t the outline of the Esotar² driver frames.
EX3-650
Crossover frequency 650 Hz/3.000 Hz
Nominal impedance 4 Ohms
Dimensions 43 x 102 x 173 mm
Net weight 0.5 kg (HF) / 0.6 kg (LF)
Available for: - Esotar2 110
- Esotar2 430
- Esotar2 650
- Esotar2 1200
1.2μF
8.2Ω
Soft Dome Tweeter Esotec MD 102
The Dynaudio Esotec mobile loudspeakers follow in the longstanding
tradition of the company’s renowned home audio driver designs.
The new Esotec MD 102 tweeter is a soft-dome design as characteristic
of Dynaudio. The ne soft dome features a special coating to facilitate an
extended high frequency response free of distortion. The compact, shallow
depth MD 102 tweeter features a 28 mm (1.1 inch) diameter surface area that
is approximately 60% greater than that of conventional car audio tweeters.
The optimized dome geometry provides greatly improved dispersion char-
acteristics, enabling the MD 102 tweeter to offer exceptional performance
even when mounted off of the listening axis. The dome coating serves to
eliminate any high frequency break-ups, while providing improved damping.
To eliminate high frequency distortions caused by reections from inside the
structure, the MD 102 tweeter rear chamber is also sealed and acoustically
damped to eliminate high frequency distortion, which could be caused by
back-wave reections, while ferrouid cooling adds damping and additional
power handling.
The extremely smooth and incredibly detailed high frequency reproduction
characteristic of the Dynaudio sound is ensured by the all-new Esotec soft-
dome tweeter, which features the latest Dynaudio technological innovations.
For the most authentic high-frequency reproduction – powerful Neodymium –
one of the most efcient but also most expensive magnetic materials for
loudspeaker construction is used in the tweeter magnet systems.
The soft-dome tweeter design topology allows unrestricted dynamics and a
linear frequency response with extremely low distortion. The MD 102 fea-
tures an aluminum voice coil, another Dynaudio hallmark, which has been
updated and improved via an increased coil height with additional windings
to allow an increased range of linear excursion within the magnetic eld.
Furthermore, as a result of the low moving mass of the new voice coil, a
higher maximum output level and increased dynamics are achieved, while
the frequency range has been expanded, thus allowing a better integration
with the upper midrange frequencies to deliver a more natural sound with
an open and detailed, and incredibly transparent reproduction of the high
frequencies.
Thiele Small Parameters
Nominal impedance 8 ΩZnom
DC resistance 5.6 ΩRe
Voice coil inductance - mHLe
Resonance frequency fs 1300 Hz
Mechanical Q factor Qms -
Electrical Q factor Qes -
Total Q factor Qts -
Mechanical resistance Rms - kg/s
Moving mass (incl. air load) Mms - g
Suspension compliance Cms - mm/N
Effective dome diameter - mmd
Effective piston area Sd 7.7 cm²
Equivalent volume Vas - l
Force factor BL - Tm
Recommended frequency range 2200–30000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 28 mm
Voice coil height 1.7 mmhc
Linear excursion, peak to peak - mm
Max. excursion, peak to peak - mm
Power Handling
Nominal long term IEC 100 W
Transient (10 ms) 500 W
Mechanical Properties
Net weight 0.126 kg
Overall dimension ø 62.2 x 43 mm
Impedance compensation circuit
5.6μF
6.8Ω
Soft Dome Midrange Esotec MD 142
Similar to the MD 102 tweeter in principle, the new Esotec MD 142 is a
75mm (3-inch) diameter soft dome midrange design intended for high
performance three- and four-way audio systems.
As typical of all Dynaudio tweeters and soft-dome midrange units, the MD 142
features a large diameter aluminum voice coil with a centered magnet housed
in a relatively compact and shallow enclosure. Suspended in ferrouid for
controlled damping, an extremely light aluminium voice coil drives the dome.
Aluminium has proven to be an ideal material for Dynaudio’s oversized
voice coils due to its extremely low mass, which in turn allows a larger coil
diameter and more windings as compared to conventional designs. The heat
produced by the voice coil is dissipated to the magnet system with the help
of ferrouid cooling liquid. The precisely optimized dome geometry and the
low mass of the internal moving parts ensure a very transparent and detailed
reproduction of all frequencies. In most dome driver designs, the surround of
the driver and the outer edge of the driver membrane are moving in opposite
phase and canceling each other’s output at various frequencies. Dynaudio
has undertaken extensive research into the shaping of these parts to ensure
that the long linear excursions essential to high output levels are maintained
without this type of interference.
The Esotec MD 142 is housed in a compact self-contained enclosure with
a vented pole piece and damped rear chamber. It includes an integrated pro-
tective grille, and requires no additional airspace for installation. It thus may
easily be integrated into a wide range of install applications and locations,
including kick-panel, in-dash, in-door or rear deck mount placement. In tan-
dem with the incredibly powerful Neodymium magnet, the sound reproduced
by the MD 142 is smooth, detailed, dynamic and simply amazing.
Thiele Small Parameters
Nominal impedance 8 ΩZnom
DC resistance 5.3 ΩRe
Voice coil inductance - mHLe
Resonance frequency fs 475 Hz
Mechanical Q factor Qms -
Electrical Q factor Qes -
Total Q factor Qts -
Mechanical resistance Rms - kg/s
Moving mass (incl. air load) Mms - g
Suspension compliance Cms - mm/N
Effective dome diameter - mmd
Effective piston area Sd 52 cm²
Equivalent volume Vas - l
Force factor BL - Tm
Recommended frequency range 700–6000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 5.5 mmhc
Linear excursion, peak to peak 2.5 mm
Max. excursion, peak to peak 5 mm
Power Handling
Nominal long term IEC 100 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 0.75 kg
Overall dimension ø 121 x 66 mm
Impedance compensation circuit
22μF
4.7Ω
Woofer Esotec MW 152
The Dynaudio Esotec mid/woofers also utilize the same core technology
as the company’s home audio and professional studio loudspeaker
products, with materials and parameters fully optimized for the par-
ticular conditions typical of in-car installations. All Esotec models are
available in various sizes, all characterized by an ultra linear frequency
response and Dynaudio’s exemplary sonic performance.
The most compact of the new Esotec car series mid/woofers, the new MW 152
is a compact 15 cm (5.75 inch) diameter driver with a 75 mm (3 inch) diameter
voice coil. As is the case with the full range of Dynaudio woofers, the cone
diaphragm is composed of a proprietary MSP (magnesium silicate polymer)
material developed by Dynaudio – a low-distortion material characterized
by a lack of coloration that proves essential to the unique Dynaudio sound.
The MW 152 exhibits a smooth frequency response both on- and off-axis,
with incredibly low distortion. The MW 152 delivers excellent midrange re-
production and is the perfect choice for any small, high-performance two- or
three-way system.
The woofer motor assemblies of the Esotec mid/woofers are built into torsion-
ally rigid die-cast aluminium baskets (a high-strength stamped steel basket
is utilized on the MW 162 GT and MW 182 model variants), which have
been optimized to eliminate air turbulence and resonance and the adverse
effects of such. The aerodynamically shaped ribs of the Dynaudio die cast
driver frames serve to eliminate virtually all reections and tonal aberrations
created by the traditional driver frame, and ensure the highest degree of
mechanical performance at an extremely low weight.
The low suspension compliance of the MW 152 makes it perfectly suited for
smaller enclosures typical of most in-car installations, while also allowing it to
be utilized without a dedicated enclosure in free-air mounting applications.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.0 ΩRe
Voice coil inductance 0.24 mHLe
Resonance frequency fs 70 Hz
Mechanical Q factor Qms 1.9
Electrical Q factor Qes 0.63
Total Q factor Qts 0.47
Mechanical resistance Rms 3.1 kg/s
Moving mass (incl. air load) Mms 14 g
Suspension compliance Cms 0.38 mm/N
Effective dome diameter 105 mmd
Effective piston area Sd 87 cm²
Equivalent volume Vas 4 l
Force factor BL 5.4 Tm
Recommended frequency range 55–3500 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 10.9 mmhc
Linear excursion, peak to peak 6 mm
Max. excursion, peak to peak 15 mm
Power Handling
Nominal long term IEC 100 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 1.1 kg
Overall dimension ø 145.5 x 70 mm
Impedance compensation circuit
22μF
4.7Ω
Woofer Esotec MW 162
The Esotec MW 162 mid/woofer is a medium sized 17 cm (6.5 inch)
diameter driver that combines a clear and detailed midrange with a
strong and powerful bass response.
Another characteristic typical of Dynaudio drivers and carried through in
the new Esotec mobile series woofers is the diffraction-optimized shape of
the MSP cone’s characteristic curvature, which further improves imaging so
that even at short listening distances as typical of most in-car installations a
realistic, true three-dimensional sound-stage can be enjoyed. Molding the
diaphragm and dust cap into a one-piece at-membrane results in a con-
trolled roll off and high dynamic range. In relation to the total cone surface
area, the 75 mm (3 inch) voice coil is exceptionally large in diameter, allowing
a most precise conversion of the amplier’s signal to music. The result is
un-compromised, direct music enjoyment.
All of the Esotec MW (mid/woofer) model variants employ Dynaudio’s cus-
tomary oversized aluminium voice coil, which feature an uncharacteristically
large diameter coil wound on a strong and temperature stable former to
drive the geometrically optimized rigid MSP cone diaphragm. The Esotec
mid/woofers have all been further upgraded with a brand-new suspension.
The new spider allows greater mechanical movement of the cone, increasing
excursion while allowing a higher maximum SPL and improved low bass
performance.
The use of Dynaudio’s large diameter aluminium voice coils increases ther-
mal handling capabilities tremendously, allowing the drivers to operate within
an ideal temperature range, even at high continuous power levels and during
powerful music transients. Dynamic impulses are reproduced precisely and
without distortion, even at high volume levels, while impressive sound quality
and high power handling capability are achieved.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.1 ΩRe
Voice coil inductance 0.22 mHLe
Resonance frequency fs 55 Hz
Mechanical Q factor Qms 2.2
Electrical Q factor Qes 0.57
Total Q factor Qts 0.45
Mechanical resistance Rms 2.7 kg/s
Moving mass (incl. air load) Mms 17.4 g
Suspension compliance Cms 0.48 mm/N
Effective dome diameter 124 mmd
Effective piston area Sd 120 cm²
Equivalent volume Vas 9.8 l
Force factor BL 5.7 Tm
Recommended frequency range 40–4000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 10.9 mmhc
Linear excursion, peak to peak 6 mm
Max. excursion, peak to peak 17 mm
Power Handling
Nominal long term IEC 120 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 1.2 kg
Overall dimension ø 175 x 77 mm
Impedance compensation circuit
22μF
4.7Ω
Woofer Esotec MW 162 GT
The new Esotec MW 162 GT is a smaller version of the MW 162 mid/
bass driver, also a 17 cm (6.5 inch) diameter design with a 75 mm
(3 inch) voice coil, housed in a slightly more compact yet rigid stamped
steel basket to better allow it to t into a wider range of drop-in factory
automobile loudspeaker locations.
This is especially helpful in minimizing labor by eliminating otherwise
necessary vehicle modications during installations where space is limited.
The Esotec mobile loudspeaker woofers all use glued and thermally bonded
styrene butadiene rubber surrounds, which ensure excellent control and
reliability, while providing added durability against the elements.
For more dynamic power delivery in the bass region, the 15, 17 and 20 cm
diameter Esotec mid/bass drivers employ Dynaudio’s traditional double-
magnet motor system while featuring new, upgraded high-density ultra-com-
pressed Ferrite magnets. The new magnet systems provide an extremely
controlled and incredibly precise movement of the voice coil. The result is
improved dynamics and greater delity to the original music signal. Dramatic
musical passages are thus reproduced accurately and without compromise.
And with increased cone excursion, even the most powerful transients are
delivered without compression.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.0 ΩRe
Voice coil inductance 0.22 mHLe
Resonance frequency fs 60 Hz
Mechanical Q factor Qms 2.1
Electrical Q factor Qes 0.63
Total Q factor Qts 0.48
Mechanical resistance Rms 3 kg/s
Moving mass (incl. air load) Mms 16.8 g
Suspension compliance Cms 0.42 mm/N
Effective dome diameter 124 mmd
Effective piston area Sd 120 cm²
Equivalent volume Vas 8.6 l
Force factor BL 5.5 Tm
Recommended frequency range 40–4000 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 10.9 mmhc
Linear excursion, peak to peak 6 mm
Max. excursion, peak to peak 17 mm
Power Handling
Nominal long term IEC 120 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 1.1 kg
Overall dimension ø 166 x 71 mm
Impedance compensation circuit
33μF
4.7Ω
Woofer Esotec MW 172
The new Esotec MW 172 is a 20 cm (8 inch) diameter mid/woofer
designed for high performance two-and three way systems.
The MW 172 will perform extremely well in a wide range of enclosures, either
sealed, vented, or free-air. The MW 172 exhibits a unique combination of
smooth frequency response, low distortion, and extremely powerful bass to
deliver an outstanding sonic performance in any high performance two- or
three-way system.
The MW 172 utilizes an oversized 75 mm (3 inch) diameter voice coil to drive
the MSP one-piece cone diaphragm. The new 15, 17 and 20 cm Esotec
car series woofers all utilize new ultra compressed dual ferrite magnets
positioned inside the coil to produce maximum utilization of the magnetic
energy. The powerful double magnet system utilizes a vented pole piece
for additional cooling. Positioning the magnet structure inside the voice coil
enables the use of a very large voice coil, which in turn produces increased
power and efciency and yields a linear movement of the cone without cone
breakup. Phase response is smooth and uniform. The large diameter of the
voice coils provides optimum drive of the diaphragm and guarantees enough
headroom with regard to power rating, while assuring perfect control of even
the most minute membrane displacement. The use of a large diameter voice
coil also allows for the at Dynaudio MSP cone membrane geometry, which
results in minimal phase lag at crossover to midrange driver.
The MW 172 is a perfectly balanced driver with excellent dispersion, a linear
frequency response and an extraordinary absence of resonance, rendering
it ideal for anchoring even a high quality two-way system even with its rela-
tively large cone diameter.
Thiele Small Parameters
Nominal impedance 4 ΩZnom
DC resistance 3.2 ΩRe
Voice coil inductance 0.27 mHLe
Resonance frequency fs 45 Hz
Mechanical Q factor Qms 2.3
Electrical Q factor Qes 0.65
Total Q factor Qts 0.51
Mechanical resistance Rms 2.6 kg/s
Moving mass (incl. air load) Mms 21.4 g
Suspension compliance Cms 0.58 mm/N
Effective dome diameter 151 mmd
Effective piston area Sd 180 cm²
Equivalent volume Vas 27 l
Force factor BL 5.4 Tm
Recommended frequency range 35–3500 Hz
Magnet and Voice Coil Properties
Voice coil diameter dc 75 mm
Voice coil height 14 mmhc
Linear excursion, peak to peak 9 mm
Max. excursion, peak to peak 15 mm
Power Handling
Nominal long term IEC 150 W
Transient (10 ms) 1000 W
Mechanical Properties
Net weight 1.6 kg
Overall dimension ø 200 x 88 mm
Impedance compensation circuit

Produkt Specifikationer

Mærke: Dynaudio
Kategori: Højttaler
Model: Esotec MW 172

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