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Woofer Esotar² 650

530.00

SKU: 81810 Categories: , Product ID: 2870

Description

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 remains
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 field to be utilized. In conjunction
with the incredibly powerful, high-efficiency 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 reflects the innovation and performance that
have established the Dynaudio Esotar drivers as the most advanced
high-performance transducers available.

Specifications:

Thiele Small Parameters
Nominal impedance Znom 4 Ω
DC resistance Re 3.4 Ω
Voice coil inductance Le 0.33 mH
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 d 123 mm
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 hc 14 mm
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

Facts:

  • Diaphragm and dust cap moulded as one piece
  • Large 75 mm voice coil ensures high power handling
  • Internal double nedymium magnet system with vented pole piece
  • Aluminium voice coil wire provides for a low moving mass, wound on kapton former in a car
  • Rigid die-cast chassis with aerodynamically shaped ribs
  • Materials and parameters are optimized for the harsh environmental conditions in a car
  • Smooth high-frequency roll-off
  • Natural midrange reproduction