Design Ideologies
In the world of high-end car audio, few brands capture the marriage of technical precision and emotive musicality like Italy’s Audio Development. The ADMM3 component set comprising the MM1/MM1T tweeter, the MM4 midrange and the MM6 woofer represents an uncompromising pursuit of sonic perfection; hand-crafted for those who view their vehicle as a private concert hall.
High Frequency Excellence – The MM1-MMT1 Tweeters
At the summit of the frequency spectrum sits the MM1-MMT1; a meticulously engineered tweeter featuring a 1.1″ / 28 mm treated silk dome, driven by a high-sensitivity neodymium motor system. Its structural integrity is equally impressive, with the chassis precision-machined from a solid billet of aluminium.
A defining feature is its dual loading chamber, engineered to lower the resonant frequency and extend its usable response further into the midrange than conventional tweeter designs. Audio Development has also developed an asymmetric off-axis dispersion characteristic, identified by a red reference dot on the chassis. This provides installers with a clear orientation reference, helping optimise dispersion characteristics and establish a more convincing acoustic stage.
Middle Masterpiece – The MM4 Midranges
A relatively uncommon proposition in high-end loudspeaker design, the MM4 employs a 4″ / 104 mm reverse-dome diaphragm constructed from double-layer fibreglass. This distinctive architecture is designed to combine the expansive presentation associated with dome-type drivers with the composure and directivity control required for accurate in-vehicle reproduction.
A reverse rubber suspension works in conjunction with a ferrofluid-cooled neodymium motor system to maintain controlled diaphragm movement and effective thermal management. Completing the package is a proprietary basket machined from solid aluminium, providing a rigid structural platform designed to minimise unwanted resonances and preserve the integrity of the driver’s output.
Packing Serious Punch – The MM6 Midwoofers
Unconventional by design, the MM6 midwoofer has earned the nickname The bumblebee among Audio Development’s engineers, with its seemingly improbable performance characteristics challenging conventional expectations. While its specifications and measured parameters may appear unorthodox on paper; the MM6 has established a reputation for its performance in properly executed automotive installations, particularly when integrated into vehicle doors.
Its thermal management system incorporates a distinctive aluminium dust-cap assembly, with an aluminium ring bonded directly to the 1.6″ / 40 mm voice-coil former. Beyond its contribution to the driver’s overall moving mass, this arrangement serves as a heat-dissipation mechanism. This helps manage thermal energy while influencing the driver’s electromechanical behaviour.
Designed with professional installations in mind, the MM6 prioritises a tactile, physically engaging low-frequency presentation without losing sight of musicality. Rather than relying solely on conventional laboratory measurements to define its character, this is a midwoofer engineered to deliver bass that can be heard, felt and experienced.
Design Features
The astute engineering team at Audio Development are without peer. The sheer amount of technologies this astute team incorporates into each and every single design is beyond comprehension. Some of these design elements include:
– The MM1-MMT1 tweeter features a specially profiled dome for an extraordinary wide sound dispersion azimuth.
– Coated silk tweeter dome is extremely light yet strong.
– FEM calculated tweeter dome geometry for best possible force transmission from the voice coil to the tweeter dome.
– The MM4 features a specially profiled flat dome for an extraordinary wide sound dispersion azimuth.
– Strong yet lightweight fiberglass cones on the MM6 helps minimize distortions and provide accuracy that’s nothing short of astounding.
– Large connection cables for a lossless connection.
– FEM calculated membranes for a high-end linear frequency response.
– High power neodymium magnet systems for best efficiency.
– Large flat wire voice coils for a high power handling.
– Progressively rolled polycotton spider ensures all reciprocating parts remain perfectly aligned.
– Plated push terminals for an optimum connection to the speaker cable without corrosion.
– Magnetically inert aluminum basket designed for aerodynamic transparency and optimum heat removal.
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