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Instruções de Operação Atlantic Technology, Modelo 172 PBM

Fabricante : Atlantic Technology
Arquivo Tamanho: 415.35 kb
Arquivo Nome : 172PBM_manual.pdf
Língua de Ensino: en
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The 172 PBM is capable of delivering very high output levels and wide dynamic range. When properly placed it will provide smooth in-room bass response down to approximately 20 Hz, with a peak SPL of 108dB (1800 cubic foot space). The built-in proprietary high-current Class G amplifier is conservatively rated at 150 watts RMS. This amplifier, coupled with a massive 12" long-throw woofer in a sealed enclosure, generates musically accurate deep bass with a minimum of distortion. Your Atlantic Technology powered subwoofer will smoothly integrate with virtually all other brands of loudspeakers on the market as all its internal electronics have been designed to maintain optimum signal integrity. From the premium quality gold plated connectors to the clearly marked controls, this is one of the most versatile high performance subwoofers you can buy. An added benefit is its relatively compact size and straight forward design. Features Your Atlantic Technology powered subwoofer has been engineered using the latest technology and finest components available. It features: A long-throw 12" driver with vented motor structure and 2", high-temperature, 4-layer voice coil This powerful driver has a very stiff cone that acts as an almost perfect piston throughout its operating range. Its massive magnetic motor assembly and high temperature component parts deliver high performance and exceptional reliability. In fact, the 9.5 pound motor assembly is identical to the one in our top of the line 15 inch subwoofers! Atlantic Technology’s advanced Class G amplifiers utilize dual low voltage/high voltage power supplies for exceptional power delivery from a compact and efficient package. One power supply operates during all “normal” demand periods. But, when a high demand peak signal appears at the subwoofer input, the second, high voltage supply switches in to dramatically boost the amplifier’s low distortion output capability. The amplifier delivers very high power levels yet consumes less steady-state power and produces much less heat than standard comparable amplifier designs. The 172 PBM’s custom designed amplifier has been precision matched and equalized to its 12” driver. It exerts accurate and powerful control over the driver for the best performance possible. A sealed enclosure for low distortion and deep bass output Sealed enclosure designs are inherently low in distortion and naturally deliver deep, smooth bass response with a gradual and predictable roll-off below resonance. As with all Atlantic Technology subwoofers, we have paid inordinate attention to giving you accurate musical bass reproduction along with terrific special effects. A linear power high current Class G amplifier conservatively rated at 150 watts RMS aaaaaaaaaaaaaaaaaaaaaaaaa0 2 aaaaaaaaaaaaaaaaaaaaaaaaa0 a a a a a a a a a a a a a a a a a a a a a a a a a a 3 a a a a a a a a a a a a a a a a a a a a a a a a a a Atlantic Technology® A useful in room working frequency range of 20Hz to 150Hz A unique Dual Diversity CrossoverTM (DDC) system with an adjustable (50Hz to 150Hz) 12dB per octave low-pass crossover, and a fixed 24dB per octave “voice filter” at 180Hz. This sophisticated crossover’s upper end roll-off slope is an extremely steep 12dB + 24dB per octave, totaling 36dB per octave above 180Hz. It allows for exceptional integration with most any brand or type of speaker on the market. We have developed this unusual design to eliminate any possibility of out-of-band information being audible from the subwoofer and thereby making it localizable. The DDC filter is incorporated to allow this subwoofer to match well with compact home theater speaker systems. If you are using a subwoofer with extremely small satellites which have limited mid-bass output you’ll need to cross over the subwoofer at a fairly high frequency. Since very compact Left / Right / Center speakers typically aren’t capable of delivering significant output below 100 to 125Hz, their mating subwoofer must reproduce these sounds. However, it’s critically important that all sounds above this frequency be eliminated from the subwoofer, in order to get correct system integration. This is because higher frequencies are your ears’ clues to where sound comes from. The innovative DDC 36dB crossover in the 172 PBM ensures precise and seamless system integration with compact satellite speakers. A subsonic filter is also incorporated to eliminate inaudible ultra-low frequencies that can rob amplifier power. Figure 1: Amplifier panel and controls for Model 172 PBM Model 172 PBM IMPORTANT NOTE - Only if you are NOT using the complete System 170: If you are using a surround receiver/processor that includes its own filtered subwoofer output and ultra-compact satellites, we strongly recommend that you connect the 172 PBM to your system using the high level (speaker) inputs. This is because most receiver/processor internal crossovers are 12dB per octave, which isn’t steep enough for use with the higher c...


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