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INSTALLATION
Inputs
Your new subwoofer is equipped with speaker-level and line-level inputs. Use the LINE LEVEL jacks when connecting your
subwoofer to a pre-amp, signal processor (such as LFE out), line level crossover, or receiver with pre-amp level outputs. When
using the line level jacks, some receivers may not provide enough signal to have the unit's auto-on feature operate properly.
Additionally, this lack of signal may also cause the subwoofer to produce less output than it is capable of producing.
To alleviate this condition, we recommend the following steps:
1) If using line level jacks, BOTH THE LEFT AND RIGHT INPUT CAN BE USED. If the subwoofer's signal comes from the LFE
channel of your receiver, use the R/ LFE marked input. If using line level connections from a preamp or signal
processor, use both Left and Right inputs from your preprocessor or preamp and connect them to the Left and Right
inputs on your subwoofer.
2) If using a receiver with LFE out, be sure the LFE channel is sending adequate signal to the subwoofer. We recommend
setting the receiver's LFE output to the neutral 0dB output then adjust sub volume to taste.
The SPEAKER LEVEL jacks connect directly to the speaker outputs of any amplifier, integrated amplifier, or receiver. Your
amplifier section will notice no additional loading effects when you use these inputs due to their very high impedance. If
using the SPEAKER LEVEL inputs, you DO want to connect both channels, since different bass information might be present
in each channel going to your main speakers. If using with audio equipment with LFE OUT, set speaker to large and indicate
no subwoofer is present.
Important
Do not use both LINE LEVEL and SPEAKER LEVEL connections simultaneously!
Caution
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 all connections are tight, and there are no loose strands or frayed wires.
Volume Control
This control allows you to balance the output from the subwoofer to the main speakers in your system. This control should
be set to achieve similar output levels from both the main speakers and subwoofer when listening to music. A good starting
point for the volume control is one blue LED lightning, by pressing the Volume+ button level will go up and more LED will
show blue light, by using the Volume- button you will reduce level and less blue LED will light up.
Warning:
Some manufacturers preset their receivers with the Sub-Out chancel signal at a minimum level. It is very important to verify
that your receiver Sub-Out channel is set to the same output level as your front right and left channels. Refer to your recei-
ver manual for the individual channel level adjustment procedure. If your receiver Sub-Out channel is set too low, the sub-
woofer may appear to have a weak output. It may sound noisy or distorted and the Auto On/Off feature may not operate
properly.
8
MicroVee X Series
www.velodyneacoustics.com
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