Velodyne Acoustics Speaker 63 IMP User Manual

S
eries  
impact - 10  
impact - 12  
impact - mini  
U S E R ’ S  
M A N U A L  
Home Theater Subwoofers  
 
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  
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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 with 2.0” high-temp voice coil  
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 with 2.0” high-temp voice coil and  
89.6 ounce (5.6 lb) motor structure or,  
Impact-12 — 12” (9.7” piston diameter) subwoofer with 2.0” high-temp voice coil and  
89.6 ounce (5.6 lb) motor structure  
• 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  
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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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), 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.  
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To alleviate this condition, we recommend the following steps:  
1) If using line level jacks, BOTH THE LEFT AND RIGHT INPUT SHOULD ALWAYS BE USED –  
never use just the left or just the right input. If the subwoofer’s input comes from the LFE  
channel of your receiver, use the included “Y” splitter to supply the single input to both  
connectors for the Left and Right subwoofer 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.)  
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 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.  
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Low-pass Crossover - 50 to 200 Hz  
As noted above, all inputs sum the left and right channels together, with the resulting signal  
passing 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 50 to 200 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 80 Hz.  
Phase Adjustment - 0°/180°  
This control allows you to “reverse” the phase of the subwoofer’s output signal 180° to correct  
for any possible mismatch and resulting cancellation between the subwoofer and your main  
speakers/amplifier. To adjust, simply listen to the system with music playing, then depress the  
phase switch from one position to the other and listen for a change in mid-bass frequency  
output. The correct position will have a greater amount of apparent mid-bass frequency output.  
For all installations, experiment with the phase switch to determine the setting (0 or 180  
degrees) that produces the most mid-bass. If the settings sound similar, we recommend the  
“0” position.  
Auto Turn on Function  
The subwoofer will turn itself on automatically when an audio signal is present. If no signal is  
present for approximately eight minutes, the unit will switch to standby mode (Red LED). While  
in standby mode, your subwoofer will draw very minimal power.  
Warning:  
If the Sub-Out channel signal level from your receiver is too weak, this feature will not operate  
properly and shut the subwoofer off while you are listening to it. To correct this, see VOLUME  
CONTROL section on previous page.  
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Rear Panel Connections  
3
2
4
5
6
1
7
Figure 1.Impact Rear Panel Connections  
Figure 1 shows the connections on the rear panel of the Impact. Following are brief descriptions  
of the connections described in Figure 1. More detail of these connections can be found below:  
(1)  
(2)  
LINE INPUT jacks - Connect these jacks to the LINE OUT jacks of the amplifier.  
SPEAKER LEVEL OUTPUT terminals - The speaker-level signal to the front  
speakers is output from these terminals.  
(3)  
(4)  
SPEAKER LEVEL INPUT terminals - Connect these input terminals to the  
speaker output terminals of your amplifier or receiver.  
PHASE switch - Select the switch position at which you hear a louder  
mid-bass sound.  
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(5)  
(6)  
VOLUME LEVEL knob - Use this knob to adjust the output level of the subwoofer.  
LOW-PASS CROSSOVER - Use this knob to select the high-frequency range at  
which you wish to cut-off the signal to the subwoofer.  
(7)  
Power indicator - Red: Unit is in standby mode. Green: Unit is in operation  
mode. (automatically turns to STANDBY mode if no signal for eight minutes)  
Crossov ers  
Receiver/Processor Subwoofer Outputs  
The Velodyne subwoofer is designed to operate using the full range audio signal for input when  
using the built-in crossover. Many home theater processors/receivers (Dolby Digital™, DTS™,  
THX™) have a “subwoofer out” jack (sometimes labeled “LFE”) that is internally filtered, settable  
at the receiver/processor, and designed to be used with a powered subwoofer. In some  
installations, it may be beneficial to use BOTH the Velodyne crossover and the  
receiver/processor crossover, resulting in a steeper ultimate crossover slope. In some rare  
cases, combining both an external crossover and the one internal to the subwoofer may result  
in low output and increased noise. In these installations you may need to bypass the crossover  
in either the processor or your Impact subwoofer, or simply setting one crossover to a higher  
frequency (such as 120 Hz) will restore maximum performance.  
(Refer to Figure 2a Line-Level Subwoofer Connection Diagram and Figure 2b Speaker-Level  
Subwoofer Connection Diagram, pages 7 and 8 for connection diagrams.)  
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SUBWOOFER OUTPUT JACK  
FRONT  
REAR  
AMPLIFIER  
Figure 2a. Line-Level Subwoofer Connection Diagram  
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SUBWOOFER OUTPUT JACK  
REAR  
AMPLIFIER  
FRONT  
FRONT LEFT SPEAKER  
FRONT RIGHT SPEAKER  
Figure 2b. Speaker-Level Subwoofer Connection Diagram  
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Interconnect Cables  
When installing your new Velodyne subwoofer using the line level connections, you should  
always use shielded phono cables. There are many high quality cables available today. It is  
recommended that you keep the length of cable as short as possible to avoid any potential  
noise problems.  
When using speaker level connections, use a high quality speaker cable that mates well with  
the connectors. Be very careful to avoid any loose strands or frayed wires that may result in a  
short, which may damage your equipment. Cables of extremely large size are not required due  
to the low current draw of this type of connection. Extremely large gauge wire may not properly  
fit in the terminals, resulting in a poor connection and possible short circuits.  
Care of Your Subwoofer  
Your Velodyne subwoofer does not require any regular maintenance. Normal dusting or cleaning  
of the surface for appearance purposes is all that is required. We suggest you avoid any harsh  
detergents or chemicals when cleaning the cabinet. Abrasives, detergents, or cleaning  
solutions may damage the finish on the cabinet. We recommend using only a damp cloth to  
clean the cabinet.  
During normal conditions, your new subwoofer may be left on continuously without any  
problems. The unit is equipped with a signal-sensing turn on/off that will automatically turn on  
the unit when a signal is present at the inputs and turn off the unit after several minutes when  
there is no longer any signal at the inputs.  
Protection Circuitry  
Your new subwoofer is equipped with circuitry to provide maximum performance with  
greatest reliability.  
The unit is protected against:  
1) Overheating the amplifier.  
2) Excessive drop in power line voltage.  
If either of the above should happen, you should reduce the volume setting or shut the unit off  
until normal operating conditions return. You may also want to plug the unit into a different wall  
outlet, as dropping power line voltage will be most noticeable under strenuous conditions and  
may result in the unit shutting down intermittently.  
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T roubleshooting and Service  
Before seeking service for your amplifier or subwoofer, please re-check all systems. Following  
is a simple troubleshooting guide to assist you.  
1. Verify that the unit is plugged in and power outlet used is active.  
2. Is the power switch on?  
3. Is the unit receiving an input signal from your source?  
4. Have all controls (volume, crossover, phase, etc.) been properly set?  
5. If the unit has been running at high levels, one of the protection circuits may be  
engaged. Has the amplifier overheated?  
6. Make sure the speaker wires are fully inserted into the spring clip connectors and that  
no wires are touching from one terminal to another.  
If the protection circuitry is active, the unit may cycle on and off until operating parameters  
return to normal. Under more serious conditions, the unit may shut off completely. Normal  
operation should return upon cooling, but you may be required to turn the power off and then  
on again to reset the unit.  
The following conditions require service by a qualified technician:  
1. The power cord has become damaged  
2. The unit does not appear to operate normally or exhibits a marked  
change in performance  
3. The unit has been exposed to water  
4. Some part of the chassis or circuitry is physically damaged  
Thank You for Purchasing a Velodyne!  
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Specifications  
Specifications are subject to change without notice.  
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Velodyne Products  
120V  
230V  
DD® Series  
DD-10  
SMS™-1  
DD® Series  
DD-10  
SPLi Series  
SPL-800i  
DD-12  
SPL-R® Series  
SPL-800R  
DD-12  
SPL-1000i  
DD-15  
DD-15  
DD-18  
Digital Drive 1812  
Signature Edition  
SPL-1000R  
SPL-1200R  
SPL-1500R  
DD-18  
Digital Drive 1812  
Signature Edition  
SPL-R Series  
SPL-800R  
®
SPL-1000R  
SPL-1200R  
SubContractor™  
Series  
DLS™-R Series  
DLS-3500R  
DLS-3750R  
DLS-4000R  
DLS-5000R  
CHT-R Series  
CHT-8R  
SPL-1500R  
SC-1250  
SC-8  
CHT-10R  
CHT-12R  
CHT-15R  
SubContractor™  
Series  
SC-10  
SC-1250  
SC-8  
SC-12  
SC-15  
DPS™ Series  
DPS-10  
Impact Series  
Impact-Mini  
Impact-10  
SC-10  
SC-IW  
SC-12  
SC-IF/IC  
SC-600 Amp  
SC-600 IW  
SC-600 IF/IC  
DPS-12  
SC-15  
Impact-12  
SC-IW  
Impact Series  
Impact-Mini  
Impact-10  
SC-IF/IC  
SC-600 Amp  
SC-600 IW  
SC-600 IF/IC  
MicroVee™  
SMS-1  
VX Series  
VX-10®  
Impact-12  
MicroVee™  
MiniVee®  
MiniVee® 10  
VX-10 Series II  
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FOR YOUR RECORDS. . .  
Date Purchased_________________________________________________________________  
Dealer_________________________________________________________________________  
Serial #________________________________________________________________________  
*NOTE: Please complete and return your warranty card within ten (10) days or  
Register. . . ON LINE . . . It’s faster . . . and easier  
LIMITED WARRANTY - U.S. AND CANADA ONLY  
VELODYNE ACOUSTICS, Inc. (“VELODYNE”) warrants all electronics for a period of three years, drivers for a period  
of five years, and full range speakers for a period of five years. All VELODYNE products have a warranty from the  
date of purchase against defects in materials and workmanship subject to the following conditions:  
1. VELODYNE is not responsible for defects which result from the use of an amplifier or controller other than  
the one originally supplied with the unit (subwoofer) or defects which result from modifications or repairs  
made by any component of the system by anyone other than a VELODYNE factory authorized  
service representative.  
2. This warranty is void if any repairs or service covered by the terms of this warranty are made to any  
component of the system by anyone other than a VELODYNE factory authorized service representative.  
3. VELODYNE is not responsible for damage caused by accidents, abuse, misuse, natural or personal disaster  
or unauthorized modification. The VELODYNE products are not intended for professional or commercial use  
and VELODYNE is not responsible for damage resulting from such use.  
4. The VELODYNE product warranty is limited to units that are purchased from authorized VELODYNE dealers  
and finalized within authorized dealer locations.  
5. This warranty is nontransferable under any condition.  
6. Use of this product outside the U.S. and Canada voids this warranty.  
TO OBTAIN SERVICE  
Information regarding service may be obtained from the dealer from whom you purchased the unit, or by contacting  
VELODYNE customer service. Warranty service must be performed by a VELODYNE factory authorized service  
representative within the warranty period set forth above. If VELODYNE determines the unit is defective, VELODYNE  
will, at VELODYNE’s option, repair or replace the product at no charge if the product is forwarded prepaid to a factory  
authorized service representative. Products forwarded to the factory authorized service representative should be  
shipped securely and properly packaged, insured and freight prepaid.  
WARRANTY OUTSIDE THE UNITED STATES AND CANADA  
The Warranty of this product if it is sold to a consumer outside of the United States or Canada shall comply with  
applicable law and shall be the sole responsibility of the distributor that supplied this product. To obtain any applicable  
warranty service, please contact the dealer from which you purchased this product, or the distributor that supplied  
this product.  
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Velodyne Acoustics, Inc.  
345 Digital Drive  
Morgan Hill, CA 95037  
408.465.2800 voice  
408.779.9227 fax  
408.779.9208 service fax  
Service E-mail: [email protected]  
Product E-mail: [email protected]  
Technical E-mail: [email protected]  
63-IMP Rev A MAY08  
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