User manual VELODYNE MINIVEE 10 DATASHEET

[. . . ] 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. Carts and Stands -- The subwoofer should be used only with a cart or stand recommended by the manufacturer. [. . . ] We suggest you experiment with the location during setup to find what sounds best to you when seated in your typical listening position. subwoofer's response will begin rolling off above the frequency you set this control to. 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. 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 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. 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. When using a single channel input (such as a surround sound processor's subwoofer out or LFE), the auto on/off circuit sensitivity will be affected. When one input channel is used instead of two, the unit will see lower signal levels present at the inputs. This may cause the unit to turn off when listening at low volume levels. [. . . ] The unit is protected against: 1) Overdriving the speaker or amplifier 2) Overheating the amplifier 3) Excessive drop in power line voltage The first type of protection circuitry which prevents overdriving of the speaker or amplifier operates constantly without being audible under most situations. In some extreme situations (sustained high output levels such as pro sound usage), the unit may shut down momentarily. This indicates the thermal or under-voltage protection circuitry has engaged. If this should happen, you should reduce the volume setting or shut the unit off until normal operating conditions return. [. . . ]