User manual VELODYNE DPS-12 REV B

[. . . ] Front Panel Display Front Panel Display Figure 1 shows the front panel display, which is located on the top of your subwoofer. Presets There are four presets, consisting of Movies, R&B -- Rock, Jazz -- Classical, and Games. The presets provide the following characteristics for bass reproduction: Movies: Maximum output and impact for explosions and other action adventure movie content. Maximum loudness available for the impact of video games. R&B -- Rock: Jazz -- Classical: Games: Each preset has its own characteristic with respect to subsonic filter, volume differential, and a single equalizer (EQ) in order to optimize the listening mode for the preset. . www. velodyne. com DPS User's Manual 2 The following table indicates musical style and which preset is recommended for it. [. . . ] (2) PHASE Switch Allows you to optimize the subwoofer performance for the location and your listening position. (A) LINE INPUT/LFE Input Connect these jacks to the LINE OUT preamp output, LFE output or subwoofer output jack(s) of your receiver/processor. If using the LFE output from your receiver or processor, plug the single cable into the "L" -- LFE input. DPS User's Manual . www. velodyne. com 6 (B) 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. Note: Do not use both the LINE INPUT/LFE INPUT connections and SPEAKER LEVEL INPUT connections simultaneously. (C) SPEAKER LEVEL OUTPUT Terminals Sends a speaker-level signal to the front speakers. To avoid damage to your main amplifier, be sure to maintain correct polarity when making all connections. Be sure that all connections are tight, and that there are no loose strands or frayed wires. Power Switch The master power switch is located on the lower right half of the unit. This switch should be set to position 1 for on (up), 0 for off (down). R e a r Pa n e l C o n n e c t i o n s - D e ta i l e d E x p l a n a t i o n Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the RCA/Phono type "INPUT" jacks when connecting your subwoofer to a pre-amp, signal processor, or line-level crossover. The "SPEAKER LEVEL INPUT" jacks connect directly to the speaker outputs of an integrated amplifier or receiver. Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance. Low-Pass Crossover Both sets of inputs sum the left and right channels together and the resulting signal is passed through an adjustable low-pass crossover before being amplified. The crossover control allows you to adjust the upper limit of the subwoofer's frequency response from 40 to 120 Hz. The 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. Subwoofer Direct Subwoofer Direct is a setting on the low-pass crossover knob and will allow frequencies up to 200 Hz into the subwoofer. If you are not using an external crossover, we recommend that you use the one provided within the DPS 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. Then move the switch from one position to the other and listen for a change in low frequency output. 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. [. . . ] VELODYNE is not responsible for defects which result from the use of an amplifier or controller other than the one originally supplied with the unit (subwoofer) or defects which result from modifications or repairs made by any component of the system by anyone other than a VELODYNE factory authorized service representative. This warranty is void if any repairs or service covered by the terms of this warranty are made to any component of the system by anyone other than a VELODYNE factory authorized service representative. VELODYNE is not responsible for damage caused by accidents, abuse, misuse, natural or personal disaster or unauthorized modification. The VELODYNE products are not intended for professional or commercial use and VELODYNE is not responsible for damage resulting from such use. [. . . ]