June 17, 2016 2 min read
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Morel has been at the forefront of drive unit development for more than three decades. This page is a descriptive list of the various technologies and their application as found across the Morel range of loudspeaker drive units.
Hexatech™ Aluminium Voice Coil:
This technology made it's debut in the 1980s are was put to excellent use in the legendary MDT33 tweeter - the modern updated version is the ET 338 .
Made from 100% aluminium wire shaped like a honeycomb, the Hexatech™ voice coil reduces air gaps in the coil windings, thereby increasing efficiency by up to 20%. Being lightweight, Hexatech™ voice coils are largely responsible for the extraordinary, fast-transient response Morel drive units are known for. The majority of Morel drive units feature Hexatech wire. A notable exception is the excellent entry level CAT 298 tweeter.
The Uniflow™ chassis is featured on many Morel Bass / Midrange drive units such EW 536 Woofer and the SCM 634 Midrange; it is a maximally 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 - this alloy chassis is found in the majority of woofers / midranges with a couple of exceptions that use a steel uniflow chassis (the smaller CAW 428 Woofer and EM 428 Midrange).
PFS™ – (Progressive Field Symmetry) engineering:
A Morel Ultimate Subwoofertechnology that produces longer linear excursion and optimized performance at high power output, enabling the spider and surround to reach optimal performance especially at high output levels. When powerful subwoofers such as the UW 1258 are driven under extreme conditions, the spider and surround progressively act as “shock absorbers” to prevent voice coil displacement and bottoming, and improve voice coil linearity.
IDR (improved Dispersion Recess):
The IDR™ tweeter faceplate is found on many Morel Tweeters such as the ST 1048 and the ET 448; this design enables a wider off-axis dispersion of high frequencies, resulting in an overall smoother performance.
The Hybrid motor drive system uses a ferrite magnet together with a very powerful neodymium magnet. Combined they create a compact, lightweight motor system that is up to four times more powerful than conventional designs of the same size. With Hybrid, more amplified power is converted into sonic energy for flawless performance, even in a small driver. Found in various drive units, a couple of noteable examples being the classic MDM 55 Midrange and the cutting edge SCW 636 Woofer.
We hope you found this information helpful.
Will & Caroline