The construction of the vast majority of box loudspeakers is extremely simple. A long, thin sheet of MDF has grooves cut into it and is then folded into a box shape with a hole through the middle. A front and rear baffle are then bonded into this ring shape and the drivers mounted in the front.
Research has shown this to be a poor way of controlling driver induced vibrations within the box. For our loudspeakers we use two u-shaped sections bonded into each other to form a box, creating a structure that is much stronger and more rigid than alternative methods.
The U-coupled front and rear baffle greatly reduces cabinet vibration and hence colouration.
Viotex is an extremely fine weave material which is both incredibly light and, when woven into a matrix and impregnated, is also very strong. Capable of moving at incredibly high speeds with minimal inertia, Viotex not only improves the upper frequency response band limit and improves the detail resolution, it is incredibly natural and relaxed in performance.
All moving coil loudspeakers use some kind of magnet system to produce the movement within the voice-coil. The magnetic field, if unshielded can affect CRT televisions if placed in proximity to the field.
Mission use an inverted field shielding system and neodymium rare-earth magnets which have a very concentrated flux density over the plane of the axis, but very little leakage towards the side of the magnet (and speaker).
All our magnetically shielded loudspeakers are ideal for use in close proximity to all television sets or wherever magnetic interference is an issue.
Kapton is a polyimide film with both excellent electrical insulation and thermal dissipation properties. Both qualities are essential for a good quality and reliable voice-coil former.
Copper is an excellent electrical conductor, however, oxygen impurities within the crystalline structure can adversely affect that conductivity. By refining the copper to a much higher grade of purity, resistance can be further reduced for the best possible electrical conductivity and hence signal quality.
A bi-polar dispersion is ideal for surround channels in a multi-channel system. With all drivers firing in-phase, they produce a 180 degree hemisphere of sound with none of the destructive interference obtained using di-pole speakers.
Positioned either on a rear or side wall, with one set of drivers pointing towards the listener and the other toward the wall, bi-polar loudspeakers produce a direct sensation of the surround effect, but also a superb sense of atmosphere and involvement.
Treble voice-coils are fine wires and tend to get very hot when used for a long time, or at high volumes. This can cause distortion and compression if the excess heat cannot be removed.
Ferrofluids are used in treble drive units to sink heat between the voice-coil and the magnet assembly. They also passively damp the movement of the cone. They reside in what would normally be the air gap around the voice-coil, held in place by the speaker's magnet.
Neodymium magnets (NdFeB) are one of a class known as rare-earth magnets. They are also sometimes known as super-magnets because of their unbelievable strength and small size.
They are ideally suited to audiophile loudspeaker applications because of their strength, low weight, small size and their thermal stability.
Die-cast chassis are a huge improvement over plastic or even pressed steel units. Because of the manufacturing technique used, they can have a more complex three dimensional shape, hence are much stronger.
Because of their higher strength, they can be manufactured with an open frame design. This allows air moving backward from the cone to flow and be absorbed within the cabinet rather than being reflected back through the cone. There is an obvious improvement to mid-range clarity and timing.