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

The Bryston SP1.7PRECISION is an exceptional audio processor that represents a significant advancement in home theater and high-fidelity music playback technology. Designed for audiophiles and professional users alike, this multi-channel surround sound processor integrates cutting-edge features and technologies to deliver an unparalleled listening experience.

One of the key features of the SP1.7PRECISION is its support for advanced audio formats. It is compatible with various surround sound formats such as Dolby Atmos and DTS:X, allowing users to enjoy immersive soundscapes that enhance the cinematic experience. The processor also supports high-resolution audio playback, ensuring that even the most intricate nuances of music and sound design are faithfully reproduced.

The SP1.7PRECISION utilizes Bryston's proprietary optimization algorithms to ensure that each audio channel is balanced and clear, enhancing overall sound quality. The processor incorporates state-of-the-art digital signal processing (DSP) capabilities, allowing for precise adjustments to be made in real time. This technology enables users to customize the acoustic environment of their listening space, applying tailored EQ settings and crossover points to achieve the ideal soundstage.

In terms of connectivity, the SP1.7PRECISION is equipped with an array of inputs and outputs, making it highly versatile. It features multiple HDMI inputs with support for 4K video and HDCP 2.2, allowing seamless integration with modern video sources. Additionally, the processor includes balanced and unbalanced outputs, ensuring compatibility with a wide variety of audio systems.

The user interface of the SP1.7PRECISION is intuitive and user-friendly, featuring a high-resolution LCD display that makes navigation a breeze. The device can be controlled via a dedicated remote, as well as through mobile devices using Bryston's app for iOS and Android, providing flexibility and convenience.

Moreover, the SP1.7PRECISION showcases Bryston's commitment to build quality and durability. Constructed with high-quality materials and components, this audio processor is designed to last while delivering consistently outstanding performance. Overall, the Bryston SP1.7PRECISION sets a new standard in audio processing, making it a remarkable choice for anyone seeking a high-quality, feature-rich home theater experience.
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