User manual VELODYNE MINIVEE 10 DATASHEET

[. . . ] Retain Instructions -- The safety and operating instructions should be retained for future reference. Heed Warnings -- All warnings on the subwoofer and in the operating instructions should be adhered to. Follow Instructions -- All operating and use instructions should be followed. Water and Moisture -- The subwoofer should not be used near water -- for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool or the like. [. . . ] You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the main speakers in your system. If your main speakers are smaller units with limited low frequency output, you may wish to choose a higher frequency (such as 100 -120 Hz) than you would with larger speakers which have greater low frequency output. With larger speakers, you might start with this control set lower, such as 80 Hz. A bypass switch is also provided if you wish to use an external crossover. If you are not using an external crossover, we recommend that you use the one provided within the unit for optimum performance!Phase Adjustment - 0°/180° This control allows you to "reverse" the phase of the subwoofer's output signal 180° to correct for any possible mismatch and resulting cancellation between the subwoofer and your main speakers/amplifier. To adjust, simply listen to the system with music playing. Then move the switch from one position to the other and listen for a change in low frequency output. The correct position will have a greater amount of apparent low frequency output. Crossover Switch - INTERNAL X-OVER/SUBWOOFER DIRECT This switch allows the internal crossover circuitry to be removed from the signal path. This is required in certain installations which route the signal through external processors with a crossover circuit of their own, such as the new digital units. In some rare cases, combining both an external crossover and the one internal to the subwoofer may result in low output and increased noise. In these installations you may need to bypass the internal crossover in either the processor or Velodyne subwoofer. In some installations, simply setting one crossover to a higher frequency (such as 120 Hz) will restore maximum performance. To bypass the subwoofer's internal crossover when the unit is being fed a low pass signal from another crossover, simply locate the switch marked INTERNAL X-OVER/SUBWOOFER DIRECT on the rear panel of the subwoofer and set to the SUBWOOFER DIRECT position. This will eliminate the internal crossover from the signal path. NOTE: If not using an external crossover, you should use the builtin crossover for optimal performance. AVIS: SUBWOOFER VOLUME MIN MAX AUTO TM POWER ON 80 Hz LOW-PASS CROSSOVER 120 Hz 40 Hz POWER ON INTERNAL X-OVER SUBWOOFER DIRECT 0 PHASE R OUTPUT 0 180 0 I L O INPUT OFF SPEAKER LEVEL INPUT + R L + LFE 117V~ 60Hz 8A WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK. DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR SERIAL # LABEL VELODYNE ACOUSTICS, INC. P LINE-LEVEL CONNECTION - OPTION A Figure 1 shows connection from your home theater receiver to the LFE input on the back of your subwoofer. When the subwoofer is installed in this fashion, all of the low frequency information from your "LFE Out" or "Subwoofer Out" on the back of your receiver will pass into your Velodyne subwoofer. This connection is the most common connection method when using your subwoofer with a 5. 1 receiver. (Cable needed: 1 mono RCA cable. ) HOME THEATER RECEIVER LFE OUT Figure 1. Installation Using LFE Line-Level Inputs 6 7 Note: If not using an external crossover, you should use the builtin crossover for optimal performance. [. . . ] Verify that the unit is plugged in, power outlet used is active and supplying proper voltage. Is the unit receiving an input signal from your source?Have all controls on the subwoofer (volume, crossover, phase, etc. ) been properly set?If unit has been running at high levels for an extended period of time, one of the protection circuits may be engaged. [. . . ]