Velodyne Acoustics Speaker CHT 8R User Manual

u e )  
ê m e - g r a v e s p o u r c i n é m a m a i s o n c o m m a n d é p a r D S P  
TM  
CHT-8R  
TM  
TM  
CHT-10R  
CHT-12R  
and  
TM  
d e l ' U t i l i s a t e u r  
CHT-15R  
User's Manual  
DSP-ControlledHomeTheaterSubwoofer  
 
Congratulations!  
Congratulations on your purchase of aVelodyne Classic HomeTheater  
(CHT-R) subwoofer. This system represents the state-of-the-art in low  
frequency reproduction. Read and follow the instructions below to in-  
sure safe and proper system operation.  
s a n c e ( C H T  
s a n c e ( C H T  
s a n c e ( C H T  
r n e  
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.  
e c t a b l e s p o u r u n m o d e d ’ é c o u t e  
Please refer all service questions to your authorized Velodyne dealer.  
t i q u e s e t c o m m a n d e s d u p r o d u i t  
Prior to Installation  
Pleaseunpackthesystemcarefully. Removeallstaplesusedtoseal  
r p o u v o i r v o u s y r é f é r e r u l t é r i e u r e m e n t .  
the carton as they can scratch the cabinet. Please save the carton  
andallpackagingmaterialsforfutureuse. Recordtheserialnumber  
a t é r i e l d ’ e m b a l l a g e p o u r p o u v o i r l ’ u t i l i s e r p l u s t a r d .  
in the space provided on the warranty card for future reference.  
e c a r e l l e s r i s q u e n t d ’ é r a f l e r l ’ e n c e i n t e . G a r d e z l a b o î t e  
s y s t è m e a v e c s o i n . E n l e v e z t o u t e s l e s a g r a f e s q u i f e r -  
Product Features and Controls  
s t a l l a t i o n  
DSP-controlled  
4 selectable presets for customized listening mode  
Night-mode setting  
t o r i s é .  
o n c e r n a n t l a r é p a r a t i o n , c o n s u l t e z u n c o n c e s s i o n n a i r e  
Mute control  
c e s r é p a r a b l e s p a r l ’ u t i l i s a t e u r à l ’ i n t é r i e u r . P o u r t o u t e s  
Built-in 160 watt (RMS) power amplifier (CHT-8R)  
m e n t s q u i s e t r o u v e n t s u r l ’ é q u i p e m e n t l u i - m ê m e . I l n ’ y  
Built-in 175 watt (RMS) power amplifier (CHT-10R)  
u c h â s s i s d ’ a m p l i f i c a t e u r . V e u i l l e z t e n i r c o m p t e d e t o u s  
Built-in 200 watt (RMS) power amplifier (CHT-12R)  
o n , n ’ o u v r e z p a s l ’ e n c e i n t e d e s h a u t - p a r l e u r s n i l e  
Built-in 600 watt (RMS) power amplifier (CHT-15R)  
e n t à l a p l u i e o u à l ’ h u m i d i t é . P o u r é v i t e r l e s r i s q u e s  
Adjustable (40 to 120 Hz) low-pass crossover with Subwoofer  
e s r i s q u e s d ’ i n c e n d i e e t d ’ é l e c t r o c u t i o n , n ’ e x p o s e z p a s  
Direct setting  
Speaker-level inputs and outputs  
85 Hz high-pass crossover  
Line-level inputs  
Signal sensing auto turn on/off with bypass option  
Variable volume control  
Selectable phase control (0, 90, 180, or 270 degrees)  
Dual staggered low-pass crossover; 12 dB/octave initial, 24  
dB/octave ultimate  
e d u s y s t è m e .  
c i - d e s s o u s p o u r a s s u r e r l e f o n c t i o n n e m e n t a p p r o p r i é  
t i o n d e b a s s e s f r é q u e n c e s  
e m ™ . C e s y s t è m e e s t à l a p o i n t e d u p r o g r è s e n m a t i è r e  
p r é s e n t o n s n o s f é l i c i t a t i o n s p o u r a v o i r a c h e t é u n c a i s -  
a t i o n s !  
continued. . .  
2
 
Anti-clipping circuit  
Over excursion protection  
Slot loaded design  
Installation  
Your new 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.  
80 Hz  
LOW-PASS  
CROSSOVER  
DIRECT  
40 Hz  
1
2
UP  
VOLUME  
DOWN  
CHT-R Series  
ACTIVE  
AUTO ON/OFF  
INACTIVE  
L
SERIAL #  
3
R
VELODYNE ACOUSTICS, INC.  
WARNING:TO REDUCE THE RISK OF FIRE  
OR ELECTRIC SHOCK. DO NOT EXPOSE  
THIS APPLIANCE TO RAIN OR MOISTURE.  
OUTPUT  
4
5
CAUTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
INPUT  
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR  
AVIS:  
DOUBLE INSULATION  
-
WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS  
LFE IN  
100 Hz  
80 Hz  
HIGH-PASS  
CROSSOVER  
6
7
SPEAKER LEVEL INPUT  
POWER  
ON  
RIGHT  
LEFT  
OFF  
8
230V~  
50Hz  
SPEAKER LEVEL OUTPUT  
F
1A  
L
Figure 1. CHT-R Rear Panel Connections  
3
 
Rear Panel Connections  
Figure 1 shows the connections on the rear panel of the CHT-R.  
r f r r e z s a n s d o u t e a c c e p t e r  
Following are brief descriptions of the connections described in Figure  
t r a n s m i s e s . P o u r l e s h a u t - p a r l e u r s p l u s g r o s a y a n t u n e  
1. More detail on these connections can be found on the next page.  
f r  
(1) LOW-PASS CROSSOVER  
a u t - p a r l e u r . P o u r l e s h a u t - p a r l e u r s p l u s p e t i t s a y a n t u n e  
Use this knob to select the high-frequency range at which you  
wish to cut off the signal to the subwoofer. When the knob is  
turned all the way to the left, the Subwoofer Direct feature is  
e c t i f o n c t i o n n e  
a t e u r s  
d e F I L T R E P A S S I F P A S S E - H A U T  
invoked and the subwoofer plays all frequencies up to 200 Hz.  
n a l d a n s l e s e n t r  
(2) VOLUMEControl  
r d a v a n t a g e d e s i g n a l , u t i l i s e z u n c o n n e c t e u r  
Thiscontrolallowsyoutobalancetheoutputfromthesubwoofer  
c e s s e u r , b r a n c h e z l e c  
to the main speakers in your system. This control should be set  
. S i v o u s u t i l i s e z l a s o r t i e L F E d e v o t r e  
to achieve similar volume level from between both the main  
u a u x j a c k s d e s o r t i e d u c a i s s o n d  
speakersandsubwoofer. Whenpressingvolumeupordown,the  
c e s j a c k s  
speedatwhichthepowerlightblinksindicatessubwoofervolume  
- the faster the blinking, the louder the unit plays.  
o u s .  
Note: Volumeisalsocontrollablebyusingthesuppliedremote.  
e p a s s i f p a s s e - b a s i n t e r n e d u C H T - R . L i s e z l  
c e s j a c k s  
(3) AUTO ON/OFF Switch  
Use this switch to select between auto-on (active) and constant  
on (inactive) operation.  
a u t o m a t i q u e ( a c t i f ) o u e n m o d e d e m a r c h e c o n s t a n t e  
(4) LINE OUTPUT  
n t e r r u p t e u r p o u r s  
R C H E / A R R  
ConnectthesejackstotheLINEINpreampinputtousetheCHT-Rs  
internalhighpasscrossover. Seebelowforamoredetailedexplanation  
ofthiscrossover.  
u t a u s s i c o m m a n d e r l e v o l u m e  
(5) LINE INPUT/LFE Input  
Connect these jacks to the LINE OUT preamp output, LFE  
n t c l i g n o t e v i t e , p l u s l  
output, or subwoofer output jacks of your receiver/processor. If  
i g n o t e i n d i q u e l e v o l u m e d u c a i s s o n d  
using the LFE output from your receiver or processor, plug the  
u y e z s u r l e v o l u m e , l a v i t e s s e  
singlecableintotheLLFEinputor, formoresignal, useaY”  
u t - p a r l e u r s p r i n c i p a u x e t l e c a i s s o n d  
connector and feed the signal into both Rand Linputs.  
d e d e v r a i t  
h a u t - p a r l e u r s p r i n c i p a u x d e v o t r e s y s t  
m a n d e v o u s p e r m e t d  
V O L U M E  
continued. . .  
4
 
(6) HIGH PASS CROSSOVER Switch  
This switch selects the frequency for the high pass crossover.  
This crossover is functional on both line and speaker-level  
outputs. Smallerspeakerswithlimitedlowfrequencyoutputmay  
performbetterusingthehigher100Hzsettingthatwillreducethe  
low frequencies sent to them. Larger speakers with greater low  
frequencyoutputmaybeabletohandlethe80Hzsettingwithout  
strain.  
(7) SPEAKER LEVEL INPUTTerminals  
Connect these input terminals to the speaker output terminals  
of your amplifier or receiver. If you use this method of  
connection, when you go to the receiver speaker set up menu,  
make sure you select the large speaker option.  
(8) SPEAKER LEVEL OUTPUTTerminals  
Sends a crossed-over speaker-level signal to the front speakers.  
See below for a more detailed explanation of this crossover.  
Rear Panel Connections – Detailed Explanation  
Your new subwoofer is equipped with both speaker-level and line-  
levelinputs. UsetheRCA/PhonotypeINPUTjackswhenconnect-  
ing your subwoofer to a pre-amp, signal processor, or line-level  
crossover. The SPEAKER LEVEL INPUTjacks connect directly  
to the speaker outputs of an integrated amplifier or receiver. Your  
amplifier section will notice no additional loading effects when you  
use these inputs because of their high impedance.  
Note:  
DonotuseboththeRCA/PhonoINPUTconnectionsandSPEAKER  
LEVEL INPUT” connections simultaneously.  
Low-PassCrossover  
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 subwoofers frequency response from 40 to  
120 Hz. The subwoofers response will begin rolling off above the  
frequency you set this control to.  
5
 
You should set the crossover frequency to obtain a smooth and  
seamlesstransitionfromthesubwoofertothemainspeakersinyour  
l t r e p a s s i f p a s s e - b a s q u i p e r m e t d e t r a n s m e t t r e d e s  
system. If your main speakers are smaller units with limited low  
D i r e c t (  
frequencyoutput, youmaywishtochooseahigherfrequency(such  
as 100-120 Hz) than you would with larger speakers which have  
greater low frequency output. With larger speakers, you might start  
8 0 H z , p a r e x e m p l e  
with this control set lower, such as 80 Hz.  
s p o u r r i e z c o m m e n c e r a v e c u n r é g l a g e m o i n d r e d e c e t t e  
o r t i e b a s s e f r é q u e n c e s u p é r i e u r e . A v e c l e s g r o s h a u t -  
Subwoofer Direct  
à c e l l e q u e v o u s a u r i e z a v e c d e s h a u t - p a r l e u r s p l u s g r o s  
Subwoofer Direct is a setting on the low-pass crossover knob and  
p o u v e z c h o i s i r u n e f r é q u e n c e s u p é r i e u r e ( 1 0 0 - 1 2 0 H z ,  
will allow frequencies up to 200 Hz into the subwoofer. See below  
c i p a u x s o n t p l u s p e t i t s e t o n t u n e s o r t i e b a s s e f r é q u e n c e  
for a more detailed explanation of this feature.  
a u t - p a r l e u r s p r i n c i p a u x d e v o t r e s y s t è m e . S i v o s h a u t -  
d o u c e u r e t s a n s i n t e r r u p t i o n d u c a i s s o n d ’ e x t r ê m e s  
Speaker Level Output/Line Level Output  
r é g l e r l a f r é q u e n c e d u f i l t r e p a s s e - b a s a f i n d ’ o b t e n i r u n e  
When connected in this fashion, your satellite speakers will be  
crossed over at 80 Hz. This removes the lower bass from your  
satellites, enabling them to do a better job reproducing high  
d e s s u s d e l a f r  
s s o n d  
n d  
frequencies and giving your receivers amp more headroom (up to  
50% more power).  
f v o u s p e r m e t d e r  
You may also connect your satellites directly to your receiver or  
f p a s s e - b a s r  
amplifier along with the subwoofer if you wish to bypass this  
e d r o i t e e n s e m b l e e t l e s i g n a l r  
crossover.  
s e m b l e s d  
p a s s e - b a s  
Caution!!!  
To avoid damage to your main amplifier, be sure to maintain correct  
polarity when making all connections. Red (positive) to red, and  
U T  
s l e s c o n n e x i o n s R C A / P h o n o «  
black (negative) to black. Be sure that all connections are tight, and  
that there are no loose strands or frayed wires.  
u t i l i s e z c e s e n t r  
Power Switch  
r u n p e p l d  
Themasterpowerswitchislocatedonthelowerrighthalfoftheunit.  
This rocker style switch is the main on/off for the unit. This switch  
L E U R ) s e c o n n e c t e n t d i r e c t e m e n t a u x s o r t i e s h a u t -  
should be set to position 1 for on (up), 0 for off (down).  
j a c k s  
u p r o c e s s e u r d e s i g n a l o u a u f i l t r e p a s s i f d e n i v e a u  
AWordAboutYourReceiversCrossoverandtheCHT-R  
o n n e c t e r l e c a i s s o n a u  
Crossover  
h a u t - p a r l e u r e t p o u r l e n i v e a u d e l i g n e . U t i l i s e z d e s j a c k s  
YourVelodyne CHT-R subwoofer is designed to operate using the full  
range audio signal for input when using the built-in crossover (controlled  
a u c a i s s o n d  
by the dial on the back panel). Many home theater processors/receivers  
o n D é t a i l l é e  
(Dolby Digital®, DTS®, THX®) have a subwoofer outjack that performs  
continued. . .  
6
 
this same function and are designed to be used with a powered  
subwoofer.  
In these installations, you may want to bypass the crossover in  
either the processor or the Velodyne subwoofer. In some cases,  
you may want to use BOTH crossovers. To do this, you can use  
both your processors crossover and the one internal to theVelodyne  
sub. You should stagger the frequencies (i.e., 120 Hz subwoofer, 80  
Hz processor) for best results.  
To bypass the subwoofers internal crossover when the unit is being  
fed a low pass signal from another crossover, simply locate the  
knob marked LOW-PASS CROSSOVERon the rear panel of the  
subwoofer and turn it counterclockwise to the DIRECTposition.  
This will eliminate the internal crossover from the signal path.  
Note:  
If not using an external crossover, you should use the built-in  
crossover for optimal performance. When using a single RCA sub  
out from the processor, it does not matter which line level input (L/R)  
is used.  
Interconnect Cables  
When installing your new Velodyne subwoofer using the line-level  
connections, you should always use shielded phono cables. There  
are many decent cables available today, most any of which will  
work perfectly well. We do recommend that you keep the length of  
cable as short as possible to avoid any potential noise problems.  
When using speaker level connections, use a quality speaker cable  
that mates well with the connectors (at least 14-gauge). Be very  
careful to avoid any loose or frayed strands that could result in a  
short, causing a dangerous condition and possible damage to your  
unit. Cables of extremely large size are typically not required. Ex-  
tremely large gauge wire may not properly fit in the binding posts,  
resulting in a poor connection and possible short circuits.  
Placement  
True subwoofers operate at extremely low frequencies, which are  
primarily omni-directional. While it is recommended that the  
subwoofers be placed on the same plane as the satellite speakers,  
7
 
room and system conditions often dictate otherwise. Keep in mind  
that frequency response and output level can be drastically influenced  
by placement, depending on the acoustic properties of your listening  
room. Typically, the optimum location for a subwoofer is in a front  
corner of your listening room. This location will usually offer the  
greatest output levels and optimum low frequency extension. The  
worst location for a subwoofer is typically far away from any walls,  
close to the center of your room and near an opening or door way.  
q u i s o n t s u r  
s s o n s d  
a c e  
e c o n n e c t e r a i e n t p a s b i e n s u r l e s b o r n e s e t d o n n e r a i e n t  
e n t p a s n  
Avoid these locations when possible. When using a pair ofVelodyne  
subwoofers in stereo, it is preferable to place each subwoofer near  
s i t u a t i o n d a n g e r e u s e , e t d e s d o m m a g e s  
the satellite of the same channel. Typically, a minimum distance of  
e s s e r r  
1 to 2 feet from your TV to the subwoofer will be adequate to avoid  
( c a l i b r e 1 4 a u m o i n s ) .  
any magnetic interference.  
u r d e b o n n e q u a l i t  
e
Caution!  
This subwoofer has electronics built into the cabinet. Do not place  
the cabinet next to sources of heat such as furnace registers,  
o n s d e g a r d e r l e c  
radiators, etc. Do not place the unit near sources of excessive  
moisture, such as evaporative coolers, humidifiers, etc. The power  
c
cord should be routed in such a way that it will not be walked on,  
c o n n e x i o n s d e n i v e a u d e l i g n e , v o u s d e v e z t o u j o u r s  
pinched, or compressed in any way that could result in damaging  
i n s t a l l e z v o t r e n o u v e a u c a i s s o n d  
the insulation or wire.  
i n t e r c o n n e x i o n  
d r o i t e ) .  
s e u l e s o r  
i n t e r n e p o u r u n e p e r f o r m a n c e o p t i m a l e q u a n d v o u s  
i s e z p a s d e f i l t r e p a s s i f e x t e r n e , v o u s d e v r i e z u t i l i s e r l e  
d u c h e m i n d u s i g n a l .  
a n t i h o r a i r e  
a u a r r i  
u v  
r o c e s s e u r ) p o u r o b t e n i r d e m e i l l e u r s r  
x .  
e p a s s i f d e v o t r e p r o c e s s e u r e t l e f i l t r e p a s s i f i n t e r n e d u  
continued. . .  
8
 
Usage  
This section addresses day-to-day usage of your CHT-R subwoofer.  
RemoteControl  
Figure 2 shows the remote control, enabling you to easily choose  
whateverlisteningmodeyoudesire.  
Figure 2. Remote Display  
POWER-ThisbuttonforcesyourCHT-Runitintostandbymode. The  
wooferwillnotplayandtheLEDwillturnoff. Theunitwillremaininthis  
modeuntilthePOWERbuttonispressedagain. Tofullydeactivate(i.e.  
powerdown)theunit,turnoffthepowerswitchonthebackpanel.  
MUTE-Thisbuttonmutesthesubwoofer. Thelightonthesubwoofer  
willblinkslowlyiftheunitismuted. Tounmutethesubwoofer, press  
theMUTEbuttonagain.  
9
 
PHASE - These buttons allow you to optimize the subwoofer  
performance for the location and your listening position. Select the  
v o y a n t s u r l e c a i s s o n d  
switch position at which you hear the most bass. The light will blink  
according to the following schedule:  
n c i e u x ) -  
a u a r r i  
0 degrees  
1 blink  
90 degrees  
180 degrees  
270 degrees  
2 blinks  
3 blinks  
4 blinks  
W E R s o i t e n f o n c  
o d e d  
m e n t a t i o n ) -  
LIGHT-Ifyouwish,youcandeactivatethepowerlightonyourCHT-R  
unit. Todothis,presstheLIGHTbuttononyourremote. Thelightwill  
turnoff. Toreactivatethelight,presstheLIGHTbuttonagain.  
f i c h a g e à d i s t a n c e  
NIGHT-Nightmodelimitsthemaximumoutputofthesubwooferfor  
later night listening or to be more considerate of close neighbors.  
Press the night button to turn the night mode feature on or off. Night  
mode, when active, is indicated by the reduced intensity of the light.  
VOLUMECONTROL-Thiscontrolallowsyoutobalancetheoutput  
fromthesubwoofertothemainspeakersinyoursystem. Thiscontrol  
should be set to achieve similar volume level from between both the  
main speakers and subwoofer. When pressing volume up or down,  
thespeedatwhichthepowerlightblinksindicatessubwoofervolume  
- the faster the blinking, the louder the unit plays.  
Note: The volume can also be adjusted via the buttons on the back  
panel of the subwoofer. These buttons have the same effect as  
pressing the up and down volume buttons on your remote.  
PRESETS -Thereare4presets,consistingofMovies,R&BRock,  
JazzClassical,andGames. Asapresetischosen,thelightflashes  
thecorrespondingnumberoftimes. Thepresetsprovidethefollowing  
characteristics for bass reproduction:  
m i r o l e n t r e l a t  
Movies:  
Maximum output and impact for explosions  
and other action adventure movie content.  
Provides the driving bass found in todays  
rock music.  
R&B Rock:  
o n n t r a i t e d e l  
t i o n  
10  
 
Jazz Classical: The tightest, cleanest, lowest distortion  
bass.  
Games:  
Maximum loudness available for the im-  
pact of video games.  
The following table indicates musical style and which preset is  
recommended for it.  
MUSICAL STYLE  
SUGGESTED PRESET  
Action Adventure Movies  
Country Rock  
Country Soft  
Folk  
Movies  
R&B Rock  
Jazz Classical  
Jazz Classical  
R&B Rock  
Indie Music  
Pop  
R&B Rock  
Rock  
R&B Rock  
Alternative Rock  
Blues  
Jazz Classical  
Jazz Classical  
Jazz Classical  
Jazz Classical  
Jazz Classical  
R&B Rock  
Jazz Classical  
R&B Rock  
R&B Rock  
Broadway andVocalists  
Childrens Music  
Christian and Gospel  
Classic Rock  
Classical  
Dance and DJ  
Hard Rock and Metal  
Latin Music  
R&B Rock  
Miscellaneous  
Jazz Classical  
Movies Non-Action Adventure Jazz Classical  
New Age  
Opera andVocal  
R&B  
Jazz Classical  
Jazz Classical  
R&B Rock  
Rap and Hip-Hop  
Soundtracks  
R&B Rock  
R&B Rock or Jazz –  
Classical  
Video Games  
Games  
11  
 
Each preset has its own characteristics with respect to subsonic  
filter, volume differential, and a single equalizer (EQ) in order to  
optimize the listening mode for the preset.  
o p  
The following table shows the settings for various presets:  
Subsonic  
Filter  
EQ  
EQ  
Volume  
Preset  
Frequency Frequency Level Differential  
Movies  
24 Hz  
27 Hz  
24 Hz  
37 Hz  
52 Hz  
N/A  
+4 dB  
+3 dB  
N/A  
+8 dB  
+5 dB  
N/A  
e
m
R&B Rock  
Jazz Classical  
(Reference)  
u e  
Games  
34 Hz  
62  
+4 dB  
+4 dB  
i e u s e e t g o s p e l  
e n f a n t s  
v o c a l i s t e s  
RESTORE DEFAULTS This feature allows you to restore default  
settings for your CHT-R Subwoofer. By pressing Presets in EXACTLY  
the following order on the remote, the units power light will blink  
three times indicating that you have restored defaults.  
v e  
e
1. Movies  
2. R&B Rock  
3. Jazz Classical  
4. Games  
a d v e n t u r e  
C A L  
5. Games  
6. Jazz Classical  
7. R&B Rock  
s u i v a n t i n d i q u e l e s t y l e m u s i c a l e t l e p r  
8. Movies  
When you press the presets in the above order, the power light will  
blink three times indicating that you have restored defaults. The  
default preset is Jazz/Classical, and the units volume is reset to  
a i r e e t a v e c l e  
level 35 (out of 100).  
a d v e n t u r e .  
Care of Your Subwoofer  
Do not use any harsh detergents or chemicals to clean the cabinet.  
Abrasives, detergents, or cleaning solutions will damage the finish  
a r a c t  
v o y a n t c l i g n o t e l e n o m b r e d e f o i s c o r r e s p o n d a n t . L e s  
on the cabinet. We recommend using a damp cloth to clean the  
u e ) , e t G a m e s ( j e u ) . Q u a n d u n p r  
front, back and sides. Use a soft cloth with a good quality furniture  
polish to clean the hand-rubbed, black lacquer, painted top.  
12  
 
During normal conditions, the subwoofer may be left on continuously  
without any problems. If you plan to leave the unit unused for an  
extended period of time, we recommend that you turn off the unit by  
the master power switch on the rear panel.  
Troubleshooting and Service  
Before seeking service for your 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 unit receiving an input signal from your source?  
4. Have all controls on subwoofer (volume, crossover, phase, etc.)  
been properly set?  
5. If unit has been running at high levels, one of the protection  
circuits may be engaged.  
6. Has the built-in amplifier overheated?  
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 will  
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 cabinet or circuitry is physically damaged.  
Thank You for Purchasing a Velodyne!  
13  
 
e l ’ e n c e i n t e o u d e s c i r c u i t s o n t s u b i d e s d o m m a g e s .  
m e n t d e p e r f o r m a n c e .  
n s s u i v a n t e s d e m a n d e n t l  
n t r e v i e n n e n t  
d e p r o t e c t i o n e s t e n s e r v i c e , l  
s i f , p h a s e , e t c . ) s o n t b i e n r  
c o m m a n d e s d u c a i s s o n d  
e r  
e e t r é p a r a t i o n  
r i  
e n p e r m a n e n c e s a n s p r o b l  
n d i t i o n s n o r m a l e s , l e c a i s s o n d  
d e l a q u e n o i r e e t p o l i  
v e c u n e c i r e  
p o u r n e t t o y e r l e d e v a n t , l  
a b r a s i f s , l e s d  
f o r t s p o u r n e t t o y e r  
d e  
14  
 
FOR YOUR RECORDS. . .  
Date Puchased___________________________________  
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  
VELODYNE ACOUSTICS, Inc. (VELODYNE) warrants all powered subwoofers for a period of  
two 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.  
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 aVELODYNE factory autho-  
rized service representative.  
VELODYNE is not responsible for damage caused by accidents, abuse, misuse, natural  
or personal disaster or unauthorized modification. The VELODYNE products are not in-  
tended for professional or commercial use andVELODYNE is not responsible for damage  
resulting from such use.  
2.  
3.  
4.  
5.  
The VELODYNE product warranty is limited to units that are purchased from authorized  
VELODYNE dealers and finalized within authorized dealer locations.  
This warranty is nontransferable under any condition.  
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 VELODYNEs 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.  
15  
 
Notes  
d s e c u r e l y a n d p r o p e r  
o d u c t a t n o c h a r g e i f t h e p r o d u c t i s f  
r
e
u n a u t h o r  
i v e .  
n t o f t h e s y s t e m b  
n s o r r e p a i r s m a d e b  
e o n e o r  
o n s :  
e d a t e o f p u r c h a s e a g a i n s t d e f e c t s i n m a t e r i a l s a n d w o r k m a n s h i p s u b j e c t t o t h e  
u l l r a n g e s p e a k e r s f o r a p e r i o d o f f i v e y e a r s . A l l V E L O D Y N E p r o d u c t s h a v e a  
O U S T I C S , I n c . (  
. . . a n d e a s i e r  
e c o m p l e t e a n d r e t u r n y o u r w a r r a n t y c a r d w i t h i n t e n ( 1 0 ) d a y s o r  
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _  
C O R D S . . .  
16  
 
Not only was the little Velodyne the best small sub Ive ever used,  
it was one of the very best subs Ive used.”  
-John Potis  
SoundStage!, April 2002  
Other Velodyne Subwoofer Products for Export:  
TM  
Digital Drive Series  
DD-10  
DD-12  
DD-15THX Ultra 2  
DD-18THX Ultra 2  
Digital Drive 1812 Signature Edition  
TM  
TM  
SPL Series II  
SPL-800 Series II  
SPL-1000 Series II  
SPL-1200 Series II  
VX-10  
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]  
Printed on recycled paper.  
63-CHTR RevC 22JUN04  
 

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