User manual VELODYNE SMS-1 DATASHEET 1

[. . . ] Outlaw Audio and the Outlaw Audio logo are registered trademarks of Outlaw Audio, LLC. Specifications are those in effect at the time of printing. Outlaw Audio reserves the right to change specifications or designs at any time without notice without obligation to modify existing units. fOr fUTUrE rEfErEncE Serial Number: Date of Purchase: Read instructions: All safety and operating instructions should be read before the unit is operated. Retain instructions: The safety and operating instructions should be retained for future reference. [. . . ] We'll need it there for some of the steps coming shortly. now that the microphone is set up, we'll take care of another piece of general housekeeping. first, turn the volume down on your receiver and then select the input that the SMS-1 is connected to. While you're at it, mute the SMS-1 ­ we'll explain why later. you should see the introductory screen, which means that you have the right input selected. Enter "1--4-5" on the SMS-1 remote to get into the menu. " SySTEM rESpOnSE MEnU The System response screen is probably starting to look familiar if you've read the previous sections of this manual. It is also the first thing you see when you enter the menus. It contains the frequency response graph (generated using the SMS-1's test tones and the microphone) and the eight parametric equalizers. We're going to leave the in-depth discussion of the System response screen for a little later, but since we've got you here we may as well get the various volume levels set up. If you have previously used a sound power level (SpL) meter and test tones to calibrate your system, you can probably leave the subwoofer amp volume and channel trim settings alone. If you aren't sure, here are some pointers. Any changes made to a Setup entry are applied to all six presets. As you will soon see, there are a number of settings that will typically need to be applied to all six presets, so the Setup entry will save you a lot of time. nine rows of settings make up the rest of the table, but those nine can be grouped into five categories. These categories are low pass crossover (frequency and slope), subsonic filter (frequency and slope), subwoofer phase adjustment (phase and polarity), volume, and contour (frequency and level). The low pass crossover is a handy tool for systems in which the receiver or processor lacks bass management. The crossover is applied to the input signal and information above the crossover frequency is filtered out of the signal sent to the subwoofer. The frequency can be adjusted between 15 and 199 in increments of one. crossovers are not absolute; the signal tapers off along a sloping curve. That's why the SMS-1 offers the ability to adjust the slope of the low pass crossover. The slope can be set at 6, 1, 18, 4, 0, 6, 4, or 48 db/octave. A higher number will increase the slope and cause the crossover to act more aggressively ­ a 48 db/octave slope will cause the signal to drop rapidly above the crossover point. [. . . ] If you want to move back to large mains later, you can do so, but you may find that a properly equalized subwoofer and a good crossover point works as well as or better than large mains. Something else There's always something else, isn't there? cArE Of yOUr SMS-1 The experts at Velodyne prepared a list of recommendations for the proper care and feeding of your SMS-1. We are including a summary of those recommendations here for your convenience. first, do not use harsh detergents or chemicals to clean the chassis of the SMS-1 because they may damage the finish. If you need to clean the unit off, use a damp cloth. [. . . ]