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www.velodyneacoustics.com
User’s Manual
Deep Blue Series
3
To alleviate this condition, we recommend the following steps:
1)
If using line level jacks, BOTH THE LEFT AND RIGHT INPUT CAN BE USED – never use
just the Left or just the Right input. If the subwoofer’s signal comes from the LFE channel of
your receiver, use the LFE input. If using line level connections from a preamp or signal
processor, use both Left and Light inputs from your preprocessor or preamp and connect
them to the Left and Right inputs on your subwoofer. (See figure 2a on page 7.)
2)
If using a receiver with LFE out, be sure the LFE channel is sending adequate signal to the
sub- woofer. We recommend setting the receiver’s LFE output to the neutral 0dB output then
adjust sub volume to taste. (See figure 2b on page 8.)
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 two or three graduations from minimum.
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 receiver manual for the individual
channel level adjustment procedure. If your receiver Sub-Out channel is set too low, the
subwoofer may appear to have a weak output. It may sound noisy or distorted and the Auto
On/Off feature may not operate properly.
