User manual VELODYNE SMS-1 DATASHEET 1

[. . . ] Outlaw Audio and the Outlaw Audio logo are registered trademarks of Outlaw Audio, LLC. 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. Heed warnings: All warnings on the unit and in the operating instructions should be adhered to. [. . . ] for the rest of us, use the table stand that is included in the accessory kit ­ even though they call it a table stand, it'll work just fine on a couch or chair. Whatever stand you use, take the dust cover out of the microphone case and slide it over the end of the microphone. Once all of that is done, put the microphone at your preferred listening position. 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 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. 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. 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. The default crossover of 80Hz and the default slope of 4 db/octave happen to be the THx standard for a low pass crossover. If you are using a receiver or processor that already provides bass management for your mains, you don't need another low pass crossover on the way to the subwoofer. If you move the cursor to select the low pass crossover setting for the "Setup" preset, press "SELEcT" to edit the crossover, and then press "rESET, " the SMS-1 will turn the low pass crossover off. you'll see all seven settings for crossover and slope change to "Off" when you do this. This will be the preferred approach for most users, but there will be cases (such as in two-channel systems with no bass management available at the pre-amp) where the low pass crossover will be a useful tool. The subsonic filter's settings may look very familiar after looking at the low pass crossover. [. . . ] Most users will be using the SMS-1 downstream of a surround receiver or processor and may find themselves looking at the bass management settings in that unit while setting up the SMS-1. Some receivers or processors include pretty robust bass management options, which while useful can also be confusing. One subwoofer option that is common applies in cases where the mains are set to "large. " That option is the "Sub+L/r" subwoofer mode. With the mains set to large, there should be no bass transferred to the subwoofer and the mains will attempt to reproduce data all the way down to 0Hz (or below). [. . . ]