TX-DS939 AV power amplifier comes out at the beginning when Do1ly AC- 3 technology announces, its golden appearance, succinct and in good taste design, give somebody a kind of noble feeling. Its AC- 3 demoder has adopted 56009 type and 56004 type what Motorola Company produced, 24bit digital handling chip, used for dealing with Dolby AC- 3 and THX control procedure separately. 56009 is that the first yuan in the world adopt AC- 3 that 24bit designs and decode the chip, his operating frequency is 80MHz, the transmission rate of maximum is 40MIPS, and traditional 20bit chip, operating frequency is 66MHz, the transmission rate of maximum is only 33MIPS. In addition, 56009 is lower than the traditional chip dissipation, thereupon greatly reduction of generating heat, this is very significant to AV power amplifier that the calorific power of complete machine is very big, can reduce the heat-dissipating design work of the chip greatly. It, with
Two-Way Radios dealing with the chip 56004 while matching and using for THX of 24bit too, can accomplish flawlessly.
Fit microphone that particularity is enclosed and determined the most in the bridge TX-DS939 power amplifier, can presume the level of the loudspeaker and put the distance automatically while utilizing this function. The loudspeaker is put on different distances which listen to the range, general technology can only adjust the appropriate sound pressure level out to the first sound channel, and Ann bridge has ARA acoustic field real-time analysis systems alone, except can adjust each sound channel sound pressure level automatically, it can set for the delay time of every sound channel even more, make users obtain optimum efficiency and accurate frequency response easily.
Except adopt the high-quality fevered component partly in power amplification, TX-DS939 has adopted the heavy large-scale voltage transformer up to 5.5kg, combine with the thick thick sealing layer, not only have thermolysis but also can prevent syntony. 5 power amplifiers of TX-DS939, it is the whole discrete component low-impedance driving means, its power is up to 200W * 2 leading left / R channel 6 , 185W * 3 midship mounting / surround channel 6 . From the viewpoint of pure music, when its total harmonic distortion is 0.003%, the power of its fore court of sound channels is up to 120W * 2 too. It is enough to push any AV acoustic enclosure easily. 5 sound channels of TX-DS939 all adopt the large-scale antimagnetic binding post, make the voice frequency current unblocked. The ultra quite cooling-down fan on the chassis inner backplate, has improved distributing thermal behavior of the complete machine greatly. This fan adopts intellectual control to be designed, open only when in complete machine full load work, reduced the interference on other parts of electric current of the fan in this way, lightened the burden of the power at the same time. TX-DS939 has offered the extremely complete leading-in terminal, including 4 groups of analog input, a series of AC- 3 RF inputs, a series of is input coaxially, two groups of optic fibres and three groups of videos and S-Video are input, in this way, TX-DS939 can guarantee you connect all kinds of AV apparatuses conveniently.
At the time of TX-DS939 replay CD stereosound, although tone quality slightly shows stiffly, clear and melodious and dynamic. It has mixed appropriate adhesiveness and sharpness ingeniously, especially on China’s low frequency band, extremely pleasant when behaving. Though the bass does not belong to the rich type, the lay of graphics is quite clearly demarcated, have proved this machine has very fine analytic strength. At the time of the surounding voice of replay, the most pleasant one is that that kind of THX5.1 sound channel is thick and having viscous acoustic field. The feel of the lines is slightly too soft, but it is
cell phone jammer the plump and broadness very much to surround the acoustic result. No matter 2 stereosound or surround acoustic replay of sound channel, steady sense of sound remarkable and superior, certainly this has close relations with its substantial power. TX-DS939 has such remarkable space reproducibility, we can say it has opened up the new
Mobile Phone Watches realm for the system of home theater.
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