Series
impact - 10 impact - 12 impact - mini
U S E R ’ S
M A N U A L
Home Theater Subwoofers
.w w w . v e l o d y n e . c o m |
Impact Series User’s Manual |
i |
Table of Contents
Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
.w w w . v e l o d y n e . c o m |
Impact Series User’s Manual |
ii |
Congr atulations
Congratulations 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 structure and 8” (6.5” piston diameter) passive radiator or,
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 control (0° or 180°)
•Green (power on) / Red (power standby) mode indicator LED
Pr epar e 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.
.w w w . v e l o d y n e . c o m |
Impact Series User’s Manual |
1 |
Placement
The first step in installing your new Impact sub is to determine where it will be placed in the room. 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 electronics built into the cabinet. Do not place the cabinet next to sources 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 compressed in any way that could 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 CRT monitor or TV, keep it at least two feet from the monitor. Experiment for correct distance by minimizing distortion of the picture and colors.
Ins tallation
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), linelevel 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.
.w w w . v e l o d y n e . c o m |
Impact Series User’s Manual |
2 |
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 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.
I m p o r t a n t ! ! !
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 Contr ol
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 channel 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.
.w w w . v e l o d y n e . c o m |
Impact Series User’s Manual |
3 |
Loading...