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M/E is made up of several groups in order to provide the finest possible products at any price. We are proud to be associated with CAMM Inc., for all our drivers, crossovers and technology consultation. CAMM Inc. (Custom Audio Manufacturing of Maine) Partners, James Banfield and Chris Perron, who had worked together for another company, NEAR, created CAMM a few years ago. At NEAR they learned how different technologies worked and interacted with each other. They worked directly with the drivers and production of the product. Over the years they fine tuned their skills and discovered just what the drivers were capable of. When NEAR closed the production plant in the US, James and Chris decided to take the knowledge and skills they had acquired and continue to produce quality drivers and cabinets right here in the US. They use two proprietary technologies, MFCS (Magnetic Fluid Centering System) and ACAD (Anodized Ceramic Aluminum Diaphragms). MFCS (Magnetic Fluid Centering System) A "spider" in a typical speaker driver is used to center the voice coil in the magnetic gap and also to limit the excursions of the voice coil and cone. There are many drawbacks to the spider. The spider adds distortion and spectral contamination. This distortion occurs because the spider can act like a small cone within itself. It passes the sound it creates back through the cone, thus adding an unwanted distortion that the original signal did not possess. CAMM uses a patented method to avoid using a spider, MFCS. This system adds a magnetic fluid to the magnetic gap. Adding the fluid has many benefits. It acts as a heat sink and dissipates the heat from the voice coil to the magnet structure. Longer excursions are possible because the spider is eliminated. Nearly perfect centering is achieved by the nature of the constant magnetic fluid forces at work. ACAD (Anodized Ceramic Aluminum Diaphragms) CAMM uses a special proprietary method to anodize the aluminum cone. This process strengthens the metal and also dampens it to create a sound that is pure. The result is a light and stiff cone - as light and rigid as can be produced. Another advantage of using a metal cone is that it works as a heat sink for the voice coil. Using an ACAD design is ideal for outdoor and harsh environment. The aluminum can withstand almost any weather condition you can throw at it, heat, salt and ice - no rocks though please. Basket The less the basket and other parts of the driver and cabinet vibrate the better. CAMM uses a cast aluminum frame. This type of frame is stronger and more rigid than the typical stamped frame. The more rigid the frame the less vibration will travel back through the cone and distort the sound. Using a cast frame holds the magnet structure solid and centered with the voice coil. Magnet Structure CAMM uses a much larger magnet structure than most companies. The larger magnet produces a higher level of magnetic flux. This higher flux holds the MFCS in place adding more linearity and control to the cone and voice coil. Surround CAMM uses a rubber surround. Salt spray, sun, and chlorine can have an adverse effect on the product. CAMM has discovered which compounds to use to withstand these harsh conditions. Voice Coil Heat is one thing that destroys loudspeakers. CAMM has gone to great lengths to dissipate the heat that the voice coil produces. They use anodized aluminum formers. The aluminum transfers the heat that is created, dissipates it through the fluid, and then throughout the cone and magnet structure. CAMM's drivers have been tested under the harshest conditions. They can go through year after year of torture and still sound fantastic. For marine use, cabinets made of traditional weather resistant woods used on yachts is recommended.
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