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Technology

Titanium Voice coil former

The bobbin material has an influence on the acoustical parameters of the driver, its power handling and the reproduced sound quality. By using titanium bobbin, Morel intended to raise the Mechanical Factor (QMS) in order to enable a wider selection of enclosure types and sizes. As for the sound quality, one is able to discern a distinctively “crisper” sound when compared to an equivalent driver with an aluminum bobbin. The rigid characteristic of titanium, along with its other advantages produces a driver that is tonally balanced and accurate, with an exceptionally fast transient response.

EVC motor

Morel speakers with EVC™ technology utilize voice coils that are up to three times larger than those used in conventional loudspeakers. The EVC™ design moves the magnetic drive system within the voice coil, eliminating stray magnetic flux by effectively directing all the magnetic energy to the voice coil. The result is an ultra-efficient and powerful design, that is highly compact with efficient heat dissipation and reduced cone breakup for lower distortion.

Lotus Grille

The new Morel grille has a specific pattern of holes in different shapes and diameters engineered to minimize the “horn” effect (high-frequency peak caused by the resonant frequency of multiple same-size holes). Innovative metal processing enabled the construction of a very thin nearly transparent grille that hardly affects the sound at all frequencies whilst maintaining structural integrity to protect the drivers.

The Lotus grille is a registered design protecting Morel’s intellectual property.

C.A.R filter

Controlled Acoustic Resistance – In most automotive applications, speakers are installed in a virtual free-air environment, such as a door, which provides minimal acoustic loading. The C.A.R. Filter™ improves the acoustic loading by controlling airflow within the driver, mimicking the effects of a cabinet while improving power handling by 30%. This provides greater control over the cone movement for improved bass dynamics.

Neodymium magnet

The most powerful magnet available, neodymium enables Morel to create physically compact speakers, such as tweeters and midrange, that fit in very limited spaces without limiting the quality of sound.

Uniflow™ Chassis

Uses an open design that is aerodynamically efficient, allowing air and sound waves to flow uniformly and smoothly. Its geometric shape also eliminates interference with the woofer’s moving components, enabling the use of a low-profile spider for greater support and stability.

Specifications

38 LE WOOFER
Nominal Impendance (ohm) 4Ω
Power Handling Wrms 140W
Max. Trans. Pwr Handling Wrms 600W
Sensitivity (2.83 V/1M) dB 88dB
Frequency response Hz 49-2000
Resonant Freq. Fs Hz 47
Voice Coil Diameter mm (inch) 75 (3)
Voice Coil Height mm (inch) 14.5 (0.57)
Voice Coil Type/Former Titanium
Voice Coil Wire Hexatech™ Aluminium
DC Resistance (ohm) 3.6Ω
Voice Coil Induct. @1 kHz (mH) 0.38
Magnet System Neodymium
HE-Magnetic Gap Height mm (inch) 6 (o.23)
B-Flux Density (T) 0.65
BL Product/BXL 6.3
Max. Linear Ex./Xmax mm (inch) ± 4.25mm ( ± 0.16)
Suspension Compliance CMS - mm/N 0.36
Electrical Q Factor QES 0.67
QTS 0.58
QMS 8
Mech. Resistance RMS- N . S / M 1.0
Moving Mass MMS - gr/ounce 20.27
Equiv. Can Air Load VAS - L (cu.ft3) 7.06 (0.24)
Effective Piston Area SD sq.cm (sq.inch) 123 (4.43)
Cone Type Triple layer sandwich cone
Cone Material Carbon Fiber/ Rohacell sandwich
Unit Diameter mm(inch) 165 (6.5)
Mounting Depth mm (inch) 61 (2.4)
Mounting Cutout 141 (5.55)
Net Wight Kg (lb) 0.90 (1.98)
38 LE hero

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