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MartinLogan Grotto i SubwooferThe closed-type body with unusual layout contains a 10-inch driver, the diffuser of which is made of lightweight aluminum alloy. Having small weight it differs by the highest rigidity that guarantees a minimum of distortions at any volume level. Amplification section of MartinLogan Grotto subwoofer literally stuns by powerful potential - 900W of output power at the peak. For more accurate control of the head there is the branded servo lock tuning system, which watches out for the diffuser's displacement linearity. Possibilities of sound corrections in this model are truly endless. In addition to traditional controls of cutoff frequency, phase and level there is a smooth correction of return on the frequency of 25 Hz that allows to minimize the influence of room resonances. The sub can be referred to the category of very fine instruments for playing bass. Overall naturalness of sound especially impresses - bass-machine perfectly fits a general coordinated picture. Bass attack is amazingly natural and accurate, the sound is not overloaded with excessive heaviness of overhang; speed characteristics are also excellent. Moreover, even the slightest side-tones are absent; the playing is maximally correct at any volume level. MartinLogan Grotto subwoofer is clearly not intended to create an incredible sound pressure; it can be rather referred to diligent artists, fully exhibiting their talents at low volume levels. And the energy at the same time is the highest. ![]() |