In order to obtain high level performance in the extremely low (28 – 35 Hz) frequency range with minimum distortion, we designed an SVA diaphragm (honeycomb structure, green sandwiched foam). This cone-shaped diaphragm is characterized by a ‘sandwich’ structure, with two glass layers containing a cellular material that provides the ideal combination of mass damping and rigidity to the moving coil.
The MAGELLAN GRAND CONCERT subwoofer can easily handle very low frequencies (down to 28 Hz) within -3dB of the reference level. We have employed special high-purity metals to machine the magnetic motor’s pole pieces. A four-layer voice coil provides a linear displacement of ± 7mm. The LHSTM 2 system (the heat conduction ring) is also used on the T21GM order to increase heat handling capacity.
The basket’s unique design allows for maximum clearance of the radiating rear surface of the diaphragm. Its side vents improve the damping of the voice coil. The T16GM F100 and T21GM models are also equipped with specific connector blocks that were designed in order to ensure that the cables from the filter are uniformly clamped