The most basic technological advancement of home theater audio lies in the advent of controllers. The controller integrates the brand-new multi-channel decoding and conversion functions in a single chassis. Understand the function of the controller, and you can know the new field of household multi-channel audio.

     A new controller is equivalent to the previous four separate combination units of two-sound and multi-channel audio: including a preamplifier that can be used as a source to select and switch, surround sound decoding, six or eight channels“Digital/analog conversion”Processing, and electronic crossover (to allocate spectrum). In the foreseeable future, due to the increasingly sophisticated microchips, the controller must be able to add more functions and more precise processing, for example, the use of digital signal processing methods to correct the problem of the interaction between the speaker and the room. Over the years, the technology of loudspeakers and power amplifiers has not changed much, but the technology of controllers has been greatly advanced many times. The prospects are promising. Many more complex and practical processing and control functions will gradually be realized, prompting The combination of audio and video has entered a realm of perfection, and today''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s advanced controllers are even more powerful than the mainframes of the late 1980s.

     With the increasing advancement of science and technology, of course, you don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t have to worry about having no money to consume these high-tech products. We can see that the NAD T753 surround radio amplifier can also be said to be the crystallization of the high-tech era. Under the simple and generous appearance, the connotation is quite rich. Inside Paul can be described as everything, but the price is not high, and the price is close to the people. Make it very popular among the people. Did you update today?

     To say that surround amplifiers range from about 2,000 yuan to hundreds of thousands of yuan, the price varies greatly. Within this price range, what is distinguished are functional features, compatible performance, future expansion and upgrade, audio performance, etc. When selecting a controller, first make sure that there are enough source inputs to accommodate various surround sound decoding formats (preferably including Dolby Digital EX and DTS ES). The NAD T753 surround sound amplifier includes Dolby Digit, Dolby Digital EX, ProLogic II, DTS, DTS ES, DTS NEO: 6, Matrix7.1, EARS and Enhanced Stereo multiple surround sound decoding formats, which should meet your daily needs Need it.

      Speaking of Dolby Digital EX and DTS ES, this is a derivative format released by Dolby Digital and DTS respectively in recent years. The Dolby Digital multi-channel format, which came out in 1997, is used to replace the previous Dolby Surround (including the derivative Dolby Pro Logic). In a single digital stream information, Dolby Digital contains six discrete channels, including five full-range front left , Center, right front, left surround, right surround channels, plus one“Subwoofer LFE channel”composition. The subwoofer channel only provides low-frequency sound effects (below 100Hz), which can be combined into five full-range channels for broadcasting, or it can be played by a subwoofer alone. Therefore, Dolby Digital belongs to 5.1 channel format, of which. 1 refers to the subwoofer channel of non-full range, another competing format DTS multi-channel audio coding, also uses 5.1 channel format.

      Dolby Digital EX is in addition to the existing Dolby Digital left-rear and right-rear surround channels.“Rear center surround channel”. Similarly, DTS derives the DTS ES format, sometimes called DTS ES Matrix, because the additional addition is that the matrix is ??encoded in the left and right surround channels, and the simulation“Front surround channel”. In addition, DTS also derives the DTS ES Discrete format, which separates an ES Discrete bit stream independently. Therefore, DTS ES Discrete is an authentic 6.1 channel system with the advantage of having six full-range channels. With a subwoofer channel, the separation is better than DTS ESMatrix.

     Perhaps you will be confused. How can decoding technology keep up with the times? If this is the case, the upgradeability or expansion of the surround amplifier will be an important factor to consider. NAD T753 surround radio amplifier can be gradually added or replaced with new modules according to future needs and budgets, so that you can keep up with the pace of the times without worrying that NAD T753 will become obsolete“Old-fashioned monster”, So as to enjoy more and better audio-visual experience.

Correspondence of high-quality source

     Nowadays, when DVD-A/V compatible machines play DVD-A software, the digital output is regulated. Therefore, digital output is not allowed for 192k/24bit two-channel or 96kHz/24bit multi-channel signals. If the player wants to fully enjoy the sound of DVD-A, it must be decoded by a DVD-A/V compatible machine and converted into a multi-channel analog signal, which is then handed over to a surround amplifier for analog amplification . The NAD T753 surround radio amplifier is also equipped with a 7.1-channel analog input terminal to correspond to DVD-A or later SACD multi-channel sources. When the input of this unit is switched at“7.1CH INPUT”In the state, the input analog signal is in a straight-through state, and any digital surround decoding circuit and equalization processing, parameter adjustment, etc. inside the NAD753 surround radio amplifier are not used, and only the analog amplification is used. part. Audio fans should agree with this approach, which can maintain the most original form of the DVD-A source, without adding materials and seasoning, and without reducing the resolution. In addition to the DVD-V 96kHz/24bit two-channel software, NADT753 can accept digital direct input. When the NAD T753 surround radio amplifier locks the 96k/24bit two-channel digital signal, it will automatically jump to the two-channel output. In order to maintain the original state, all music DSP and movie surround modes are inactive at this time.

Tenderness

     NAD’s first combined power amplifier, NAD 3020, has a soft clipping (Soft Clipping) design, which makes the high frequency sound gentle and not irritating. The sound created by this unique design has become one of the characteristics of NAD products. One, and on the NAD T753 surround radio amplifier body, you can also see the unique secret of NAD. Connect NAD T753 to Onix Reference 3 for two-channel music listening. The sound source is Marantz DV8300. If you like some lyrical tunes with ease, the timbre of the sound expressed by NAD T753 will be very pleasing: mid- and low-frequency. It is wide and soft, medium frequency is smooth, high frequency is smooth, extremely high frequency has a slight roll-off, and the transparency is not the strong one. Listen to Sam Levine“Hi-Fi SAX”, If the saxophone you hear is too thin and too sharp, it would be beautiful without a saxophone. You can’t blame me for choosing a badly recorded CD, but blame your sound system on the mid-range The missing. The NADT753 shows the lazy saxophone without losing the charming taste of the metal wind texture. What you can hear is the warm, loose, and resonant saxophone solo.

     Let''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s listen to another James Taylor album. His singing is broad and hearty, it sounds very medium, and the characteristic of the voice, NAD T753, can be clearly expressed. The guitar played by James Taylor is rich and soft, without losing the texture of finger playing. The full and rich vocals and instrument sounds are very balanced, making it comfortable to listen to. This kind of sound performance is really hard to imagine that this is emitted by a surround amplifier, throwing away the cold taste of previous digital machines, and making it look full of music.

     What we require at home is the best possible sound effects, it is best to be able to hear the effect of the concert hall. If the two speakers cannot meet this requirement, why not let the multi-channel speakers try? Forty years ago Audio fans use one speaker to listen to music, and later all audio fans are used to using two speakers to create a virtual sound field. Maybe it''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s time to try more of the multi-channel listening area. Use aad''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s S series to connect to the NAD T753, and play the live concert DVD of Keiko Matsui. It turns out that NADT753 is also good at performing soft jazz. The aad S series horn combination that was originally very fast and impactful, under the tuning of NAD T753, the speed has been slowed down, the high frequency has been tempered, and the charming jazz tune is humming warmly.“Ding Ding Dong Dong”The piano notes are mellow and water-like smooth, with a fresh and natural breath, smoothly nourishing the heart. Upon hearing it, all worries and troubles have been thrown away.

NAD T753 technical specifications:
Output 6x70W, 2x150W（21.7dBw, 8Ω）
Frequency response: 5Hz-20kHz±0.8dB
Signal-to-noise ratio>90dB
Size: 435x170x423（mm）
Net weight: 20.5kg