User manual VELODYNE DD 1812 SE DATASHEET

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VELODYNE DD 1812 SE DATASHEET: Download the complete user guide (859 Ko)

Manual abstract: user guide VELODYNE DD 1812 SEDATASHEET

Detailed instructions for use are in the User's Guide.

[. . . ] THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. THE EXCLAMATION POINT SYMBOL is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the subwoofer. 1. READ INSTRUCTIONS -- All safety and operating instructions should be read before the product is operated. RETAIN INSTRUCTIONS -- The safety and operating instructions should be retained for future reference. [. . . ] EQ is a shorthand way to refer to all the subwoofer's parameters that can be changed to equalize how the subwoofer sounds throughout its frequency range. You choose what is right for you although Velodyne recommends Auto-EQPLUS as it automatically gives you great sounding bass in about 5 minutes (not including setup time) and doesn't require you to install and use the Velodyne-authored Windows Setup Program on your Windows computer or the TV-screen interface to manually modify the bass frequency response. Place & Play Place & Play setup doesn't require the use of the supplied microphone. You can get great sounding bass from the factory-default EQ settings with the ability to use the default preset EQ settings for different audio genres. Self-EQ Self-EQ is the simplest and fastest way to optimize the bass response from your subwoofer for your room. Unlike Auto-EQ and Manual EQ, which use the sweep tone on the enclosed CD and can adjust all settings on the subwoofer, Self-EQ uses a sweep tone generated from the subwoofer itself which is picked up using the calibrated microphone. Self-EQ smoothes the frequency response of the subwoofer from 15 to 120 Hz and leaves the settings for volume, crossover, slope and phase unchanged. Auto-EQ PLUS (Recommended) Auto-EQPLUS is recommended by Velodyne. Auto-EQPLUS is the most advanced way to automatically optimize the bass response from your subwoofer and audio system. During the Auto-EQPLUS process, the Auto-EQPLUS digital signal processing algorithm uses a calibrated microphone and the Auto-EQPLUS sweep tone (found on the enclosed CD) played through your system to optimize the low frequency output response. The Auto-EQPLUS system first automatically mutes the subwoofer to determine the low frequency response (<200 Hz) of the speakers in your audio system. Thus, as a general rule it is better to "cut down" a peak of the frequency response rather than to "boost up" a valley. Self-EQ and Auto-EQPLUS perform this adjustment automatically for you. In general, you should try to achieve a frequency response that is +/­ 3 dB at all lower frequencies. This is because most people perceive a response curve of this accuracy level as very smooth. However, people with excellent hearing or who have been trained to listen for sonic purity can hear frequency response deviations to as small as +/- 1 dB or less. The Digital DrivePLUS Self-EQ and Auto-EQPLUS both will automatically smooth your Digital DrivePLUS subwoofer to within a +/- 3dB window. Optimize for Your Audio System How good your bass sounds also depends on how smoothly it blends with the output of the satellite speakers. If a smooth transition doesn't exist at the crossover frequency, you hear either too much mid-bass or the bass frequencies as separate from the mid and high frequencies. To smoothly blend the subwoofer with the main speakers, you first need to know the low frequency response of the main speakers. Auto-EQPLUS determines the low frequency response of the main speakers automatically and blends with it. The response always rolls off at the lowest end, but no dip or peak should exist at the crossover frequency with the satellites. [. . . ] POOR VIDEO QUALITY on SETUP SCREENS on TV Many new receivers and AV processors support HDMI connectivity and can up-convert legacy source material to true high definition 1080i/p output. If you're having difficulty currently seeing the video from your Digital DrivePLUS subwoofer, go into the receiver's setup menu and select a lower output resolution. You may also find that it's helpful to use a composite to S-video adaptor to help in this process and go into your receiver using the S-video input. Or use the Windows Setup Program and PC to avoid having to use TV screen for setup. [. . . ]

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