Dynaudio Esotar2 110, Manual

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22μF
4.7Ω
Esotec MW 162 GT 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 fit into a wider range of drop-in factory
automobile loudspeaker locations.
This is especially helpful in minimizing labor by eliminating otherwise
necessary vehicle modifications 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 fidelity 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 Znom 4 Ω
DC resistance Re 3.0 Ω
Voice coil inductance Le 0.22 mH
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 d 124 mm
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 hc 10.9 mm
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
SPL
Red line: on-axis response
Green line: 30° horizontal
Blue line: 60° horizontal
Measurement conditions:
Level: 2.83 V
Distance: 1 m
Box volume: 15.6 l
Facts
Diaphragm and dust cap moulded
as one piece
Large 75 mm voice coil ensures
high power handling
Internal double magnet system
with vented pole piece
Aluminium voice coil wire provides
for a low moving mass
Materials and parameters are
optimized for the harsh
environmental conditions
in a car
Smooth high-frequency roll-off
Natural midrange reproduction
Impedance
(with and without impedance
correction circuit)
Red line: impedance, free air
Green line: impedance, free air
with compensation.
Measurement conditions:
Level: 2 V, 10 ohms
Driver in free air
Impedance compensation circuit