(5)VOLUME LEVEL knob - Use this knob to adjust the output level of the subwoofer.
(6)LOW-PASS CROSSOVER - Use this knob to select the high-frequency range at which you wish to cut-off the signal to the subwoofer.
(7)Power indicator - Red: Unit is in standby mode. Green: Unit is in operation mode. (automatically turns to STANDBY mode if no signal for eight minutes)
C r o s s ov e r s
Receiver/Pr ocessor Subwoofer Outputs
The Velodyne subwoofer is designed to operate using the full range audio signal for input when using the built-in crossover. Many home theater processors/receivers (Dolby Digital™, DTS™, THX™) have a “subwoofer out” jack (sometimes labeled “LFE”) that is internally filtered, settable at the receiver/processor, and designed to be used with a powered subwoofer. In some installations, it may be beneficial to use BOTH the Velodyne crossover and the receiver/processor crossover, resulting in a steeper ultimate crossover slope. In some rare cases, combining both an external crossover and the one internal to the subwoofer may result in low output and increased noise. In these installations you may need to bypass the crossover in either the processor or your Impact subwoofer, or simply setting one crossover to a higher frequency (such as 120 Hz) will restore maximum performance.
(Refer to Figure 2a Line-Level Subwoofer Connection Diagram and Figure 2b Speaker-Level Subwoofer Connection Diagram, pages 7 and 8 for connection diagrams.)
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