3.Hit ‘SELECT’ and you will see the adjustment screen picture below appear, and you will hear a low level Pink Noise signal coming from your subwoofer and/or large speakers.

Figure 21: BPLM Routine for level setting

Now you can adjust the value of the subwoofer limiter (-24 to 0 dB). Slowly increase the level by pressing the “>” button (display counting up from -24) until you hear overload/ distortion/bottoming/popping from your sub- woofer(s). When you do, reduce the value shown by 1dB and Hit ‘SELECT’ to save the setting. You can always return to this menu to make further adjustments if needed.

Setting the BPLM without Pink Noise

To adjust the BPLM setting without running the Noise routine, Enter the BPLM as above, but when the SP1 prompts “Do BPLM Routine?”, use the arrow keys to select ‘NO’ and hit ‘SELECT’. This will bring up the numeric value of the BPLM setting without the noise signal. You can now adjust the value using the arrow keys, and hit ‘SELECT’ when finished.

Caution: If the BPLM is set to “OFF” or “0”, the Bass Limiting function is disabled. In this case, you may run the risk of speaker damage due to bass overload. Please be sure that your speaker system can handle high bass levels before disabling the BPLM.

Enabling DTS-ES 6.1 Decoding

DTS-ES Discrete 6.1 will only operate on DTS source bitstreams that have a discrete sixth channel encoded. If the Back Speakers are turned on via the speaker config menu (See Speaker config on page 19.), and the input bitstream permits, DTS-ES Discrete 6.1 will be detected and enabled automatically.

DTS-ES Matrix 6.1 processing creates back channel material from material contained in the surround channels of DTS 5.1 bitstreams. Some DTS material has been formatted so that when DTS-ES Matrix 6.1 processing is applied, specific material will be placed on the back channels, while other specific material remains on the surround channels. To control when DTS-ES Matrix 6.1 processing will be applied, change the ES Control setting as follows:

1. First enter the main menu by pressing on any one of the menu buttons (< - > or SELECT)

Figure 22: Highlight “OS” in Setup Menu

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Bryston SP1.7 Series manual Setting the Bplm without Pink Noise, Enabling DTS-ES 6.1 Decoding
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SP1.7 Series specifications

The Bryston SP1.7 Series is a sophisticated audio preamplifier designed to deliver exceptional sound quality and versatility for home theater and audio enthusiasts. Known for its high fidelity and robust construction, the SP1.7 reflects Bryston's commitment to excellence in audio engineering.

One of the standout features of the SP1.7 is its advanced digital signal processing (DSP) capabilities. The unit supports a wide range of audio formats, including Dolby Atmos and DTS:X, ensuring that users can experience immersive sound in their home theater setups. The built-in DSP allows for room correction, which optimizes audio performance based on the unique acoustics of the listening environment, providing a more balanced and accurate sound.

The SP1.7 Series also boasts multiple HDMI inputs. With support for high-resolution audio formats, these inputs facilitate seamless integration with modern AV sources. The unit can handle 4K video pass-through, maintaining the highest quality for both audio and visual performance. This level of connectivity is essential for today's discerning consumers who demand versatility and convenience in their audio systems.

In terms of audio quality, the SP1.7 features top-notch components, including high-performance DACs (Digital-to-Analog Converters) and a low-noise power supply. This ensures that the signal path remains clean and free of interference, delivering crystal-clear audio reproduction. Furthermore, the SP1.7 supports among the highest industry standards for signal-to-noise ratio, ensuring that subtle details in the music or movie are preserved.

User-friendly operation is another hallmark of the SP1.7. The intuitive interface, complete with an easy-to-read display, allows users to navigate through settings effortlessly. The preamplifier is also equipped with robust remote control functionality, allowing users to manage their audio environment from a distance.

With its sleek design and solid build quality, the Bryston SP1.7 fits seamlessly into any home theater or audio system setup. Built to last, Bryston is known for offering a 20-year warranty on their products, reassured by their reputation for durability and reliability.

In summary, the Bryston SP1.7 Series stands out as a premier choice for audiophiles and home theater enthusiasts. With its advanced DSP capabilities, multiple connectivity options, superior audio quality, and user-friendly features, the SP1.7 combines cutting-edge technology with exceptional craftsmanship, making it a top contender in the realm of audio preamplifiers.
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