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Technical Specifications MD 142 Soft Dome Midrange


Dynaudio Esotec - Technical Specifications MD 142 Soft Dome Midrange

          

Thiele Small Parameters
Nominal impedanceZnom8 Ω
DC resistanceRe5.3 Ω
Voice coil inductanceLemH
Resonance frequencyfs475 Hz
Mechanical Q factorQms-
Electrical Q factorQes-
Total Q factorQts-
Mechanical resistanceRms-kg/s
Moving mass (incl. air load)Mms-g
Suspension complianceCms-mm/N
Effective dome diameterd-mm
Effective piston areaSd52cm ²
Equivalent volumeVas- l
Force factorBl-Tm
Recommended frequency range700 - 6000 Hz
Magnet and Voice Coil Properties
Voice coil diameterdc75 mm
Voice coil heighthc5.5 mm
Voice coil layersnc2
Magnetic gap heighthg3 mm
Linear excursion, peak to peak 2.5 mm
Max. excursion, peak to peak 5 mm
Magnet weightwm0.24 kg
Power Handling
Nominal long term IEC (Depending on crossover)100 W
Transient (10 ms)1000 W
Mechanical Properties
Net weight 0.75 kg
Overall dimension ø 121 x 66 mm

Typical impedance correction for MD 142
DSP

(Frequency response: on-axis, 30º and 60º off-axis)

Red line: on-axis response
Green line: 30º horizontal
Blue line: 60º horizontal

Measurement conditions:
Level: 2.83 V
Distance: 1 m

Measured in a large baffle
Impedance

(with and without impedance correction circuit)

Thick line: impedance, free air
Thin line: impedance, free air with compensation.

Measurement conditions:
Level: 3.16 V, 50 ohm

Driver in free air

Facts

Coated textile dome
Large 75 mm voice coil ensures high power handling and low compression
Internal magnet structure with vented pole piece
Aluminium voice coil wire results in a low moving mass
Shallow mounting depth
Integrated protective grille
Ferrofluid adds damping and increases power handling
All specifications subject to change without notice
Dynaudio International GmbH, Ohepark 2, 21224 Rosengarten, Germany, Phone: +49 (0) 4108 - 4180 - 0, Email: info@dynaudio.com


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