Velodyne Acoustics DEQ-15R Speaker User Manual


 
Rear Panel Connections — Detailed Explanation
Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the
R
CA/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.
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 70 Hz.
Subwoofer Direct
Subwoofer Direct is a setting on the low-pass crossover knob and will allow frequencies up to
120 Hz into the subwoofer
. See below for a more detailed explanation of this feature.
8
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DEQ-R Series User’s Manual