Velodyne Acoustics IMPACT MINI, IMPACT 10, IMPACT 12 User Manual
impact - 10
impact - 12
impact - mini
S
eries
USER’S
MANUAL
Home Theater Subwoofers
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Impact Series User’s Manual
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Table of Contents
C
ongratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Crossovers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Interconnect Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Care of Your Subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Protection Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Troubleshooting and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Velodyne Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
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Impact Series User’s Manual
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Congratulations
C
ongratulations on your purchase of a Velodyne Impact subwoofer system. This system
represents the state-of-the-art in home audio reproduction and will provide you with years of
listening pleasure when properly used and cared for. Read and follow this instruction manual
to ensure safe and proper system connection and operation.
Caution!
Please observe the following instructions to insure safe and proper system operation.
Note: Do not leave unit in direct sunlight or use in high humidity environments!!!
Warning!
To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid
electrical shock, do not open speaker enclosure or amp chassis cover. Please observe all
warnings on the equipment itself. There are no user serviceable parts inside. Please refer all
service questions to your authorized Velodyne dealer.
Prior to Installation:
Please unpack the system carefully. This unit is heavy. Use caution when lifting or moving to
avoid injury. Please save the carton and all packaging materials for future use. Packing this
unit in any other carton may result in severe damage when shipping. Record the serial number
in the space provided on page 13 for future reference.
Product Features
• Driver configurations:
Impact-Mini — 6.5” (5” piston diameter) active subwoofer and 64 ounce (4.0 lb)
motor str
Impact-10 — 10” (8.2” piston diameter) subwoofer and 89.6 ounce (5.6 lb)
motor structure or,
Impact-12 — 12” (9.7” piston diameter) subwoofer and 89.6 ounce (5.6 lb)
motor structure
• Class D amplifier
• Adjustable (50 to 200 Hz) low-pass crossover with a 12 dB/octave slope
• Line-level (RCA) inputs
• Speaker-level inputs and outputs
• Signal sensing auto turn on/off
• Variable volume control
• Selectable phase contr
• Green (power on) / Red (power standby) mode indicator LED
ucture and 8” (6.5” piston diameter) passive radiator or,
)
ol (0
or 180
°
°
Prepare for Installation
Your new Velodyne subwoofer provides for a number of installation options. Read all the
installation information below in order to determine which installation option is best for your
system. Remember to perform all installation procedures with system power turned off to
prevent possible damage.
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Impact Series User’s Manual
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Placement
The first step in installing your new Impact sub is to determine where it will be placed in the
r
oom. Unpack the system carefully and use the following guidelines in order to find the best
room placement option.
True subwoofers operate at extremely low frequencies which are primarily omni-directional.
Keep in mind that frequency response and output level can be drastically influenced by
placement, depending on the acoustic properties of the listening room. To obtain optimum
output from your subwoofer, try placing it within a foot of a corner. This location will offer the
greatest output levels and optimum low frequency extension. If at all possible, your subwoofer
should be placed along a wall. The worst location for a subwoofer is typically far away from any
walls and close to the center of your room. Avoid these locations when possible. When using
a pair of Velodyne subwoofers in 2-channel stereo, it is preferable to feed each subwoofer with
one channel and place each subwoofer near the satellite of the same channel.
Depending on the size and type of furnishings in the room, perfect placement may not be
possible. Finding the best location within your environment will likely require some
experimentation. We suggest you experiment with the location during setup to find what sounds
best to you when seated in your typical listening position.
Regardless of where you install your Velodyne subwoofer, it must remain in an upright position.
Using, shipping or storing the subwoofer in any other position for an extended period of time
may result in damage to the unit not covered by warranty.
Caution!
This subwoofer has electr
of heat such as furnace registers, radiators, etc. Do not place the unit near sources of
excessive moisture, such as evaporative coolers, humidifiers, etc. The power cord should be
routed in such a way that it will not be walked on, pinched or compr
result in damaging the insulation or wire.
Your Velodyne Impact subwoofer is NOT magnetically shielded. Should you find it necessary to
use it with an older CR
for correct distance by minimizing distortion of the picture and colors.
onics built into the cabinet. Do not place the cabinet next to sources
essed in any way that could
T monitor or TV
, keep it at least two feet fr
om the monitor. Experiment
Installation
Inputs
our new subwoofer is equipped with speaker
Y
jacks when connecting your subwoofer to a pre-amp, signal processor (such as LFE out), linelevel cr
eceivers may not provide enough signal to have the unit’s auto-on feature operate properly.
r
Additionally, this lack of signal may also cause the subwoofer to produce less output than it is
capable of.
ossover
, or receiver with pre-amp level outputs. When using the line level jacks, some
-level and line-level inputs. Use the LINE LEVEL
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Impact Series User’s Manual
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T
o 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 a “Y” splitter to connect to both the left and right inputs.* 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. (See figure 2a on page 7.)
* This dual male-to-female “Y” splitter can be found at your local electronics store.
2) If using a receiver with LFE out, be sure the LFE channel is sending adequate signal to the
subwoofer. We recommend setting the subwoofer’s level to the 9 o’clock position (the
1/4 volume setting) and then adjust the LFE channel on your receiver or processor to
achieve the desired bass output. See your receiver or processor’s owner’s manual for
more information. (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.
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 that 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 manufactur
It is very important to verify that your receiver Sub-Out channel is set to the same output level
as your fr
level adjustment pr
appear to have a weak output, it may sound noisy or distorted, and the Auto On/Off feature
may not operate properly.
ont right and left channels. Refer to your r
ers pr
eset their r
ocedure. If your receiver Sub-Out channel is set too low, the subwoofer may
eceivers with the Sub-Out channel signal at a minimum level.
eceiver manual for the individual channel
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Impact Series User’s Manual
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