1.`First enter the main menu by pressing on any one of the menu buttons on the SP1.7 front panel (< - > or SELECT).

2.Next move the cursor to “LVL”. Hit ‘SELECT’ - You are now in the Level Trim Menu.

3.Move the cursor to the speaker(s) you want to change the level for using the arrow keys (L, C, R, RS, LS, RB, LB, SUB). Hit ‘SELECT’. Now you can adjust the Level for the selected speaker using the arrow buttons.

4.Hit ‘SELECT’ when finished, and repeat Step 3 to change the Level Trim for any of the other speakers.

Setting the THX Subwoofer Limiter or “Bass Peak Level Manager”

To diminish the chance that your subwoofer will overload from the large amount of bass, often present in the LFE channel the system uses a Peak Management circuit which works with the data you supplied during speaker setup to help match the subwoofer output to your specific subwoofer’s capabilities. Please note that the factory default for the BLPM is -14 dB since the capabilities of your specific subwoofer are unknown. In the SP1.7 setup and calibration section above, the final step you should have performed was to set the BLPM for your sub- woofer’s specific capabilities.

Setting the BPLM with Pink Noise

1.Enter the main menu by pressing on one of the menu buttons. Move the cursor to “OS”. Hit ‘Select’ - You are now in the Other Settings (Optical/THX) Menu.

Figure 19: Highlight “BPLM”

in the Other Setting Menu

2.Move the cursor to ‘BPLM’. Hit Select. [BPLM=Bass Peak level Manager] You will see the following screen.

Figure 20: BPLM Routine Choice

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Bryston SP1.7 Series manual Setting the Bplm with Pink Noise, Setting the THX Subwoofer Limiter or Bass Peak Level Manager
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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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