Martin Logan Grotto i Servo Controlled 10 inch Subwoofer 1 Working

Martin Logan Grotto i Servo Controlled 10 inch Subwoofer 1 Working Compact and powerful servo sub featuring 10 inch aluminum woofer, which is fast and reaches low. Sealed enclosure provides for lower distortion and cleaner sound at lower notes. Plenty of configuration options and 25hz control. Excellent choice to complement stereo setup Grotto i Subwoofer: Compact and Accurate Subwoofer Grotto i deploys the full array of MartinLogan's advanced subwoofer technologies to achieve deep, rich, satisfying bass while preserving accuracy and detail. Its advanced low-distortion switching amplifier and sophisticated servo control system extract the very best possible performance from Grotto i's high-resolution 10-inch aluminum-cone driver. A powerful 300 watt (900 watt peak) low-distortion, high-reliability amplifier gives Grotto i extremely articulate bass without the need of exaggerated amplifier power ratings or transient-blurring ported or passive radiator enclosures common to many modern subwoofers. A proprietary servo system further ensures that output from Grotto i's 10-inch high-resolution aluminum cone woofer is dramatically free of distortion and provides a faithful replica of the audio input signal. Under the Hood: Making Sense of Subwoofer Technology Rigid, Low-Mass Aluminum-Cone Diaphragms By eliminating cone flexure, extremely rigid low-mass aluminum cones help our advanced-technology bass drivers achieve the very low distortion necessary for a superbly realistic bass performance. Servo Correction System A highly sophisticated servo control system compares the original audio signal input to the amplified woofer output and corrects for any deviation. This advanced servo combines with the drivers' inherent low distortion to yield the cleanest, most accurate bass possible. Advanced Proprietary Vojtko™ Switching Amplifier Grotto i's amplifier belongs to a recently developed class of switch-mode designs that incorporate a variety of innovative techniques to reduce noise, distortion, and heat to the lowest possible levels. In particular, the switching frequency is much higher than in typical subwoofer amplifiers of this type. It can produce a true 300 watts continuously and 900 watts peak. Taking Control: Flexible Inputs and Controls Make All the Difference Comprehensive Inputs with Simultaneous-Connection Option Grotto i provides a LFE input (that bypasses the subwoofers internal crossover) for connection to surround preamp/processors and receivers that already integrate a subwoofer crossover. As well, Grotto i allows line- and speaker-level stereo inputs that connect to the subwoofers internal crossover. Both type of inputs can be connected simultaneously with separate level and crossover settings for each, enabling precise optimization for home-theater and stereo music playback in the same system - the best of both worlds. 25Hz Level Control At very low frequencies, all rooms exhibit a phenomenon known as room gain, which produces a mild bass boost. The smaller the room, the higher the frequency at which this starts. Grotto i's 25-Hz level control enables you to compensate for excessive room gain by cutting output in the 20- to 30-Hz range or, if you prefer, to accentuate the feeling of deep-bass energy by augmenting those frequencies. Extended-Range Master Level Control Crave a little heavy-metal thunder from time to time? Ordinary level controls top out at '10'; Grotto i's goes to '11'! Full-Rotation Phase Switch Grotto i's phase control can be switched from 0 to 270 degrees in 90-degree increments, allowing precise adjustment for optimum blending with the main speakers. Please feel free to call text or email ask for rick 94one-4four7-3five2zero

Condition

Used (normal wear)

Type

Subwoofer