Velodyne Acoustics Speaker VA 806 907 User Manual

"If you know subwoofers, you know about Velodyne."  
"... it's safe to say that when it comes to woofin' done right,  
Velodyne's bigger models are probably the safest bet there is."  
"... we just sat there marvelling at the sheer power and majesty of  
this junior varsity Velodyne."  
806/907  
-Corey Greenberg  
Owner's Manual  
Home Theater Technology/February 1995  
Face Off: Comparison of five subwoofers  
Model Tested: VA-1012X  
Velodyne Acoustics, Inc.  
1070 Commercial St. Suite #101  
San Jose, CA 95112  
408.436.7270 voice  
408.436.7276 fax  
Audio/Video Subwoofer System  
Printed on recycled paper.  
P/N: 63-610  
 
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.  
Congratulations!  
If you plan to leave the VA-806/907 unused for an extended period  
of time, we recommend that you turn off the unit by the master power  
switch on the rear panel.  
Congratulations on your purchase of a Velodyne VA-806/907  
subwoofer system. This system represents the state of the art in  
accurate low frequency reproduction. Read and follow the instruc-  
tions below to insure safe and proper system operation.  
Troubleshooting & Service  
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.  
Before seeking service for your VA-806/907 subwoofer, please re-  
check all systems. Following is a simple troubleshooting guide to  
assist you.  
Prior to installation  
1. Verify unit is plugged in and power outlet used is active.  
2. Is power switch on?  
3. Is auto turn on/off set properly?  
4. Is unit receiving an input signal from your source?  
5. Have all controls on subwoofer (volume, crossover, phase,  
etc.) been properly set?  
Please unpack the system carefully. Remove all staples used to  
seal the carton as they can scratch the cabinet. Please save the  
carton and all packaging materials for future use. Record the serial  
number in the space provided on the warranty card for future  
reference.  
Product Features & Controls  
The following conditions require service by a qualified technician:  
Built in power amplifier  
Adjustable (50 to 150hz) low-pass crossover  
85hz high-pass crossover  
Line-level inputs & outputs  
Speaker-level inputs & outputs with spring clips  
Signal sensing auto turn on/off with bypass option  
Variable volume control  
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 cabinet or circuitry is physically damaged.  
selectable phase control (0 or 180 degrees)  
Magnetically shielded for video use  
Thank you for purchasing a Velodyne!  
continued. . .  
2
9
 
When using a pair of VA-806/907 subwoofers in stereo, it is  
preferable to place each subwoofer adjacent to the satellite of the  
same channel.  
Installation  
Keep in mind that frequency response and output level can be  
drastically influenced by placement depending on the acoustic  
properties of the listening room. Typically the VA-806/709 will  
sound louder when placed next to a wall or in a corner.  
Your new VA-806/907 subwoofer system 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.  
Caution!  
The VA series subwoofers have amplifiers built into the cabinet. Do  
not place the cabinet next to sources of heat such as furnace  
registers, radiators, etc. The power cord should be routed in such  
a way that it will not be walked on, pinched, or compressed in any  
way.  
Inputs  
Your new VA-806/907 subwoofer is equipped with both speaker-  
level and line-level inputs. Use the LINE-IN jacks when connecting  
your subwoofer to a pre-amp, signal processor, or line-level cross-  
over. The FROM AMPLIFIER jacks connect directly to the speaker  
outputs of a integrated amplifier or receiver. Your amplifier section  
will notice no additional loading effects when you use these inputs  
because of their high impedance.  
Regardless of where you install your VA-806/907 subwoofer, it  
must remain in an upright position (passive radiator facing down-  
ward). Using, shipping, or otherwise storing the VA-806/907 sub-  
woofer in any other position for an extended period of time may  
result in damage to the unit not covered by warranty.  
Note  
The VA-806/907 Subwoofer is magnetically shielded to reduce  
magnetic emission from its cabinet to increase the number of  
possible locations available for placement. However, this shielding  
may not be adequate for all installations. Certain types of televisions  
are particularly sensitive to stray magnetic fields. If your television  
produces distorted colors after installation of your VA-806/907  
subwoofer, simply increase the distance between your television  
and the VA-806/907 until normal color and operation is returned.  
Do not use both LINE-IN and FROM AMPLIFIER inputs simulta-  
neously.  
Volume control  
This control allows you to balance the output from the subwoofer to  
the main speakers in your system. To adjust the volume, start with  
the volume knob indicator at the "MIN" setting. With your other  
speakers playing, rotate the knob clockwise until you create a  
volume balance with your speakers. In most cases this will be  
somewhere between the "10 o'clock" and "2 o'clock" positions on  
the dial.  
Care of your subwoofer  
Warning - Turning the volume to "MAX" setting may dam-  
age the subwoofer with certain source material.  
Do not use any harsh detergents or chemicals to clean the cabinet.  
Abrasives, detergents, or cleaning solutions may damage the finish  
on the cabinet. We recommend using a damp cloth to clean the  
cabinet.  
Low-pass crossover  
Both sets of inputs sum the left and right channels together and the  
resulting signal is passed 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  
During normal conditions, the VA-806/907 subwoofer may be left on  
continuously without any problems. The unit is equipped with a  
continued. . .  
3
8
 
Figure 2: Installation using speaker-level (from amplifier) inputs  
150 hz. The subwoofer's response will begin rolling off above the  
frequency you set this control to.  
PHASE  
FREQUENCY  
VOLUME  
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 100-120hz) 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 80hz.  
CCAAUUTTIIOONN!!  
CAUTION!  
WARNING:  
AVIS:  
Phase adjustment  
This control allows you the ability to compensate for having the  
subwoofer in a different location than the main speakers. Ideally,  
you will have the sound from the subwoofer reach the listening  
position the same time as the sound from the main speakers.  
However, if the distance from the listening position to the subwoofer  
and the distance from listening position to the main speakers differs,  
the sound from each will reach your ears at a different time.  
+
R
-
-
L
+
MAIN OUTPUTS  
(speaker-level)  
+
-
+
-
SATELLITE  
SPEAKERS  
INTEGRATED AMP / RECEIVER  
This control allows the signal to be delayed 180 degrees so the  
output of the subwoofer will blend in to that of your main speakers  
without any cancellation.  
Interconnect cables  
Auto turn on switch  
The auto turn on switch allows the user to bypass the auto turn on  
function if desired. When set in the "auto" mode with main power on,  
the VA-806/907 will turn itself on when an input signal is present. If  
no signal is present, after several minutes the unit will shut itself off.  
When set in the "on" mode, the auto turn on/off function is bypassed  
and the unit will be on whenever the main power switch is on.  
When installing your VA-806/907 using the line-level inputs/out-  
puts, you should use standard shielded phono cables. Always keep  
the lines as short as practical to minimize noise.  
When using the speaker-level inputs/outputs, use the same quality  
speaker cable to your subwoofer as you run to your satellites.  
Placement  
Power switch  
The VA-806/907 operates at very low frequencies which are prima-  
rily non-directional. While it is recommended that the subwoofer be  
placed on the same plane as the satellite speakers, room and  
system conditions often dictate otherwise. See your dealer for help  
in placement.  
The master power switch is located on the right half of the unit. This  
slide style switch is the main on/off for the unit. This switch should  
be set to up for on , down for off.  
continued. . .  
7
4
 
A word about subwoofer outputs  
The Velodyne subwoofer is designed to operate using the full range  
audio signal for input when using the built-in crossover. Some  
surround sound processors/receivers have a "subwoofer out" jack  
that is already crossed over and designed to be used with a  
conventional amplifier and speaker. If this is the case, you should  
set the low pass crossover to 150Hz.  
Line-level connection  
Figure 1 shows connection to a pre-amplifier's main outputs and  
returning them to your amplifier inputs.  
Note  
When installed in this fashion, your satellite speakers will be  
crossed over at 85hz, which removes the lower bass from your  
amplifier and speakers thus, enabling them to do a better job  
reproducing high frequencies. By utilizing this method, you will have  
a bi-amplified system, gaining improved power and headroom for  
your system.  
If not using an external crossover, you should use the built-in  
crossover for optimal performance.  
Subwoofer out from A/V  
Processor  
Figure 1: Installation using line-level (line in) inputs  
From the low pass output of your signal processor Install into right  
or left RCA line in connector in the back of the subwoofer or use a  
"Y" connector adapter into both right and left RCA line in connectors  
in the back of the subwoofer.  
PHASE  
FREQUENCY  
VOLUME  
Speaker-level connection  
Figure 2 shows an easy way to connect your VA-806/907 subwoofer  
directly to your receiver or integrated amplifier.  
When connected in this fashion, your satellite speakers will be  
crossed over at 85hz, which removes the lower bass from your  
speakers thus, enabling them to do a better job reproducing high  
frequencies.  
CCAAUUTTIIOONN!!  
CAUTION!  
WARNING:  
AVIS:  
You may also connect your satellites directly to your receiver or  
amplifier along with the subwoofer if you wish to bypass the internal  
high-pass crossover.  
PRE-AMP  
AMPLIFIER  
MAIN OUTPUTS  
RIGHT LEFT  
MAIN OUTPUTS  
MAIN INPUTS  
RIGHT LEFT  
RIGHT  
LEFT  
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 that all connections are tight, and  
TO SATELLITE SPEAKERS  
that there are no loose strands or frayed wires.  
continued. . .  
5
6
 

Teledyne Portable Generator 751H User Manual
TOA Electronics DVR C DR161 CU Series User Manual
Toastmaster Oven 18BCAN User Manual
Toshiba Laptop X305 Q701 User Manual
Trane Humidifier TCONT800 User Manual
Velodyne Acoustics Speaker VRP 1000 User Manual
Viking Electronics Telephone K 1500 Series User Manual
Vosonic Portable Multimedia Player VP8860 User Manual
Vulcan Hart Griddle 924RE 936RE 948RE 960RE 972RE ML 135221 00G24 ML 135222 00G36 ML 135223 00G48 ML 135224 00G60 ML 135225 00G72 User Manual
Weber Charcoal Grill 54780 US 080812 User Manual