Bryston SP1.7 Series manual Setting the Channel Delays, Change the Crossover Frequency

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3.Next move the cursor to ‘XO’. Hit ‘SELECT’ - You are now in the Crossover Menu. The options available in this menu are either NONE or 60 Hz to 220 Hz in 10 Hz increments. The SP1.7’s default factory setting as shipped is the THX standard 80 Hz crossover frequency.

Figure 17: Change the Crossover Frequency

4.Once you have selected the desired crossover frequency, press SELECT to exit this menu and return to the Speaker Config menu. The selected frequency is common to all speakers defined as ‘SMALL’. Only one global crossover value is available.

NOTE 1: The crossover action is only applied to speakers defined as ‘SMALL’ in the speaker configuration menu.

NOTE 2: If NONE is selected for the crossover frequency, the LFE signal (Low Frequency Effects channel) will be presented with no cut-off frequency. LFE signals can be up to 120 Hz in bandwidth, which replicates the studio mix.

Setting the Channel Delays

In this step you will need to measure within one foot the distances from your chosen listening/viewing position to the various loudspeaker locations in your system. You will need the tape measure or other means of making these measurements. You should record this data for future reference.

1.Now, make a measurement from the chosen seated position to each loudspeaker.

2.Next, enter the main menu by pressing on one of the menu buttons on the SP1.7 front panel. Move the cursor to “DLY”. Hit ‘Select’ - You are now in the Delay Menu. The SP1.7 automatically calculates the required delay time per speaker using the data entered as distance from the listening position. Delays are implemented using DSP RAM and have a maximum value.

Figure 18: Delays Menu

IMPORTANT: It is recommended that the closest speaker is entered first. The SP1.7 will calculate the maximum allowable distance from the listening position for the remaining speakers. Please note that delay is represented in feet. For reference, One foot (0.3048 meters) = approximately 1 millisecond of delay.

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Contents SP1.7 Important Safety Instructions Contents Accessories SP1.7 Functional LayoutPower Power Input ModeFront Panel Controls and Indicators Power Momentary SwitchStandby and IR Infrared Activity Indicator Using the Dynamic Range Control LCD Display windowSource Selection Buttons and Indicators Menu Control ButtonsMode Selection Buttons Digital Mode and IndicatorSurround Button Stereo and Stereo Downmix Mode Mono and Mono Downmix ModesTHX Button Mode Button Available with THX Listening Mode…Master Volume Bypass ButtonAnalog Balance Rear Panel Input and Output Connections Balanced and 2. Unbalanced OutputsAnalog Inputs Digital Audio Coaxial InputsSetting the Optical Audio Input Assignment Toslink Digital Audio Optical InputsTape/Recording Outputs RS-232 connector Remote 12V Trigger OutputsProgramming the AUX Trigger Output Aux IR ReceiverSP1.7 Remote Control IEC Power Connector FusesMaster Power Switch Source Select ButtonsMode Select Buttons Volume/Trim ButtonsPower Button Setup ButtonsStatus LED Photo SensorSET UP and Calibration of the SP1.7 To accomplish this process the following tools are neededExplanation of ‘Saved Settings per Source’ Feature Setting the Speaker ConfigurationExplanation of ‘Xtra Bass’ Mode Setting the Speaker Crossover Frequency Highlight SP Setup MenuSetting the Channel Delays Change the Crossover FrequencyCalibrating and Setting Levels/Channel to Channel Balance Setting Channel Levels without Pink NoiseSetting the Bplm with Pink Noise Setting the THX Subwoofer Limiter or Bass Peak Level ManagerSetting the Bplm without Pink Noise Enabling DTS-ES 6.1 DecodingHightlight ES Other Settings Menu Enabling THX Surround EX DecodingChanging Dolby Plii Music Settings Change EX Control SettingHighlight Plii Setup Menu Changing DTS NEO6 Settings Center Image is a variable in Neo6 music mode onlyTo change the Center Image AcknowledgementsAppendix a SP1.7 Surround Modes Surround ModesPage Signal Table of all available surround modesAppendix B THX Information DTS as per THX licensing agreementsExample HOOK-UP Diagrams XLR/PHONESP1.7 Specifications InputsSuggested Surround Speaker Placement SP1pt7MANUAL20060324

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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