User manual VELODYNE CHT-15Q 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. [. . . ] (4) LINE OUTPUT Connect these jacks to the LINE IN preamp input to use the CHT-R's internal high pass crossover. See below for a more detailed explanation of this crossover. (5) LINE INPUT/LFE Input Connect these jacks to the LINE OUT preamp output, LFE output, or subwoofer output jacks of your receiver/processor. If using the LFE output from your receiver or processor, plug the single cable into the "L" ­ LFE input or, for more signal, use a "Y" connector and feed the signal into both "R" and "L" inputs. continued. . 4 (6) HIGH PASS CROSSOVER Switch This switch selects the frequency for the high pass crossover. This crossover is functional on both line and speaker-level outputs. Smaller speakers with limited low frequency output may perform better using the higher 100 Hz setting that will reduce the low frequencies sent to them. Larger speakers with greater low frequency output may be able to handle the 80 Hz setting without strain. (7) SPEAKER LEVEL INPUT Terminals Connect these input terminals to the speaker output terminals of your amplifier or receiver. If you use this method of connection, when you go to the receiver speaker set up menu, make sure you select the large speaker option. (8) SPEAKER LEVEL OUTPUT Terminals Sends a crossed-over speaker-level signal to the front speakers. You should stagger the frequencies (i. e. , 120 Hz subwoofer, 80 Hz processor) for best results. To bypass the subwoofer's internal crossover when the unit is being fed a low pass signal from another crossover, simply locate the knob marked "LOW-PASS CROSSOVER" on the rear panel of the subwoofer and turn it counterclockwise to the "DIRECT" position. This will eliminate the internal crossover from the signal path. Note: If not using an external crossover, you should use the built-in crossover for optimal performance. When using a single RCA sub out from the processor, it does not matter which line level input (L/R) is used. Interconnect Cables When installing your new Velodyne subwoofer using the line-level connections, you should always use shielded phono cables. There are many decent cables available today, most any of which will work perfectly well. We do recommend that you keep the length of cable as short as possible to avoid any potential noise problems. When using speaker level connections, use a quality speaker cable that mates well with the connectors (at least 14-gauge). Be very careful to avoid any loose or frayed strands that could result in a short, causing a dangerous condition and possible damage to your unit. Cables of extremely large size are typically not required. Extremely large gauge wire may not properly fit in the binding posts, resulting in a poor connection and possible short circuits. Placement True subwoofers operate at extremely low frequencies, which are primarily omni-directional. [. . . ] Is unit receiving an input signal from your source?Have all controls on subwoofer (volume, crossover, phase, etc. ) been properly set?If unit has been running at high levels, one of the protection circuits may be engaged. If the protection circuitry is active, the unit may cycle on and off until operating parameters return to normal. [. . . ]