User manual VELODYNE DPS-12 REV B

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Manual abstract: user guide VELODYNE DPS-12REV B

Detailed instructions for use are in the User's Guide.

[. . . ] DPS Series DPS-10 DPS-12 USER'S MANUAL Audio/Video Subwoofer System Caution . www. velodyne. com DPS User's Manual i Ta b l e o f C o n t e n t s Congratulations . . 6 Rear Panel Connections - Detailed Explanation . . 12 . www. velodyne. com DPS User's Manual ii Congratulations Congratulations on your purchase of a Velodyne Digital Power SlotTM (DPS) subwoofer system. This system represents the state-of-the-art in low frequency reproduction. [. . . ] When the knob is turned all the way to the left, the Subwoofer Direct feature is invoked and the subwoofer plays all frequencies up to 200 Hz. (2) PHASE Switch Allows you to optimize the subwoofer performance for the location and your listening position. Select the switch position at which you hear more bass. (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. Red (positive) to red, and black (negative) to black. 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 rocker style switch is the main on/off for 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. [. . . ] If the 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. Under more serious conditions, the unit may shut off completely. Normal operation should return upon cooling, but you may be required to turn the power off and then on again to reset the unit. [. . . ]

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