User manual VELODYNE CHT-8R

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Manual abstract: user guide VELODYNE CHT-8R

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

[. . . ] CHT-8R CHT-10R CHT-12R and CHT-15R TM TM TM TM User's Manual DSP-Controlled Home Theater Subwoofer CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Caution Toreducetheriskofelectricshock, donotremovecover(orback). Nouser-serviceablepartsinside. Refer servicingtoqualifiedservicepersonnel. The lighting flash with arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerousvoltage"withintheproduct'senclosurethatmaybeofsufficientmagnitudetoconstitutearisk ofelectricshocktopersons. The exclamation point symbol is intended to alert the user to the presence of important operating and maintenance(servicing)instructionsintheliteratureaccompanyingthesubwoofer. 1. Read Instructions -- All safety and operating instructions should be read before the subwoofer is operated. [. . . ] See below for a more detailed explanation of this crossover. Rear Panel Connections ­ Detailed Explanation Your new subwoofer is equipped with both speaker-level and linelevel 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. Note: Do not use both the RCA/Phono "INPUT" connections and "SPEAKER LEVEL INPUT" connections simultaneously. 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. 5 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. See below for a more detailed explanation of this feature. Speaker Level Output/Line Level Output When connected in this fashion, your satellite speakers will be crossed over at 80 Hz. This removes the lower bass from your satellites, enabling them to do a better job reproducing high frequencies and giving your receiver's amp more headroom (up to 50% more power). You may also connect your satellites directly to your receiver or amplifier along with the subwoofer if you wish to bypass this crossover. Caution!!! 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). A Word About Your Receiver's Crossover and the CHT-R Crossover Your Velodyne CHT-R subwoofer is designed to operate using the full range audio signal for input when using the built-in crossover (controlled by the dial on the back panel). Many home theater processors/receivers (Dolby Digital®, DTS®, THX®) have a "subwoofer out" jack that performs continued. . 6 this same function and are designed to be used with a powered subwoofer. In these installations, you may want to bypass the crossover in either the processor or the Velodyne subwoofer. To do this, you can use both your processor's crossover and the one internal to the Velodyne sub. 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. Note: If not using an external crossover, you should use the built-in crossover for optimal performance. [. . . ] 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. Normal operation will return upon cooling, but you may be required to turn the power off and then on again to reset the unit. The following conditions require service by a qualified technician: 1. [. . . ]

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