Velodyne Acoustics SC-600 IF-IC, SC-600D User Manual

SC-600D Amplifier

SubContractor™ Series

U S E R ’ S

M A N U A L

S C - 6 0 0 D A m p l i f i e r, S C - 6 0 0 I W,
S C - 6 0 0 I F / I C Subwoofers

C a u t i o n !

'&"!

To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel.

The lightning flash with arrowhead symbol is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be
of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying
the subwoofer.

1. !%&$'&"!%, All safety and operating instructions should be read before the product is operated.

2. &!!%&$'&"!%, The safety and operating instructions should be retained for future reference.

3. $!!%, All warnings on the product and in the operating instructions should be adhered to.

4. "")!%&$'&"!%,All operating and use instructions should be followed.

5. &$!"%&'$, The product should not be used near water — for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near
a swimming pool or the like.

6. $&%!&!%, The product should be used only with a cart or stand recommended by the manufacturer. If a cart is used, use caution when moving the
cart/product to avoid injury from tip-over.

7. "$!"'!&!, The product should be mounted to a wall or ceiling only as recommended by the manufacturer.

8. !&&"!, The product should be situated so that its location or position does not interfere with its proper ventilation. For example, the product should not be
situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or placed in a built-in installation such as a bookcase or cabinet that may
impede the flow of air through the ventilation openings. The ventilation shall not be impeded by covering the ventilation openings with items such as newspapers,
tablecloths, curtains, etc.

9. & , The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that
produce heat.

10.  , Keep the product away from open flame sources.

11. ")$"'$%, The product should be connected to a power supply only of the type described in the operating instructions or as marked on the product.

12. $"'!!"$ "$+&"!, This product may be equipped with a polarized alternating-current line plug (a plug having one blade wider than the other).
(A grounding type plug has two blades and a third grounding prong.) This plug will fit into the power outlet only one way. This is a safety feature. If you are unable
to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat
the safety purpose of the polarized plug.

13. ")$"$$"&&"!, Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them,
paying particular attention to cords at plugs, convenience receptacles, and the point at which they exit from the product.

14. !!, The product should be cleaned only as recommended by the manufacturer.

15. "!'%$"%, The power cord of the product should be unplugged from the outlet when left unused for a long period of time.

16. &!#'!&$*, Care should be taken so that objects do not fall and liquids are not spilled onto the enclosure.

17.  #'$!$(, The product should be serviced by qualified service personnel when:
a. The power-supply cord or plug has been damaged.
b. Objects have fallen or liquid has been spilled into the product.
c. The product has been exposed to rain or moisture.
d. The product does not appear to operate normally or exhibits a marked change in performance.
e. The product has been dropped or damaged.

18. $(!, The user should not attempt to service the product beyond what is described in the operating instructions. Refer all servicing to qualified service
personnel. Servicing is required when the apparatus has been damaged in any way, such as a power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

19. &!!, For added protection for the product during a lightning storm or when it is left unattended and unused for long periods of time, unplug it from the
wall outlet.

20. ($"!, Do not overload wall outlets, extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock.

21. && !&%, Only use attachments and accessories specified by the manufacturer.

22. "&, Insure that the subwoofer is only connected to the rated source voltage. Do not connect the 120-volt version to 230-volts or vice-versa. This will result
in damage to the subwoofer and possible injury to the user.

23.  &%, This product can be used in tropical or moderate climates.

To prevent electrical shock, match wide blade of plug to wide slot, fully inserted.

To reduce the risk of fire or electrical shock, do not expose this product to rain or moisture.

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SC -600D A mplifi e r User ’s Man ual

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Ta b l e o f C o n t e n t s

Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

– SC-600D Subwoofer Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

– SC-600 IW, SC-600 IF/IC Subwoofers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Setup Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

– Front Panel Controls and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

– Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Rear Panel Connections - Detailed Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

– About Low-Pass Crossovers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

– A Word About Your Home Theater Receiver’s Crossover and the

SC-600D Amplifier’s Crossover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

– A Word About Interconnect Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

– A Word About Subwoofer Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Selecting the Subwoofer to be Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Care of Your Amplifier and Subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Troubleshooting and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Appendix A: RS-232 Serial Overview and Commands . . . . . . . . . . . . . . . . . . . . . . . . .17

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

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SC - 600D A mpli f ier Use r’s M a nual

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C o n g r a t u l a t i o n s

Congratulations on your purchase of a Velodyne (SC) SubContractor Series 600D amplifier and
subwoofer. This system represents the state-of-the-art in low frequency reproduction. Read and
follow the instructions below to ensure safe and proper system operation.

Warning!

To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid
electrical shock, do not open the speaker enclosure or the 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.

P r i o r t o In s t a l l a t i o n

Please unpack the system carefully. Please save the carton and all packaging materials for
future use. Record the serial number in the space provided on the warranty card and page 20
of this manual for future reference.

P r o d u c t F e a t u r e s

S C - 6 0 0 D S U B W O O F E R A M P L I F I ER

• 400 watts dynamic/200 watts RMS high efficiency, Class D

• DSP-controlled

• Four selectable presets for customized listening mode

• Automatic 5-band room equalizer (microphone included)

• Night-mode setting

• Mute control

• Line-level (RCA) inputs and outputs

• Speaker-level inputs with 5 way binding post connections

• Signal sensing auto turn on/off (defeatable)

• Variable volume control

• Selectable phase control (0, 90, 180 or 270 degrees)

• Built-in adjustable (30-160 Hz) digital low-pass crossover with 24 dB/octave slope

• Driver Displacement Control software to prevent over excursion and amp clipping

• Blue power indicator LED

• RS-232 Serial Interface

• 12 Volt trigger

• Universal IR repeater mini-jack

• Preset-specific subsonic filter

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S C - 6 0 0 I W, S C -6 0 0 IF / I C S U B W O O F E R S

SC-600 IW (In-Wall):

- Two high excursion 6.5” active drivers, two 12.5” x 3” oval passive radiators
with ribbed rubber surround

- High-excursion rubber surrounds on both active and passive drivers

- 2” 4 layer copper

- Frequency Response: 30 - 120Hz (+/- 3 dB)

- 4 ohm impedance

SC-600 IF/IC (In-Floor/In-Ceiling):

- 12” (9.7” piston diameter) subwoofer

- 2.5” 4 layer copper

- Oversized spider for linearity at high excursion

- High-excursion rubber surround

- Frequency Response: 25 - 120Hz (+/- 3 dB)

- 4 ohm impedance

Note: The SC-600 IW and the SC-600 IF/IC must be driven with either the SC-600D or the
SC-602 amplifier. Use of any other power source voids the warranty.

S e t u p C h e c k l i s t

Be sure to do the following to ensure the best performance from your subwoofer:

❑ If possible, optimize the placement of the subwoofer(s) in the listening area.

See page 10 of the User’s Manual.

❑ Install and wire the subwoofer per the instructions on pages 3 - 8.
❑ Select the proper model per the instructions on page 10.
❑ Select the proper volume level. See page 4.
❑ Be sure the low pass crossover is set correctly. See pages 8 - 9.
❑ Be sure to equalize the subwoofer using the microphone and Auto-EQ feature.

See page 11.

❑ Be sure to set the phase control on the remote. See page 11.
❑ Select the correct preset for the source material. See page 13.

Your new Velodyne 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.

Note: For proper setup and installation of the SC-600 IW (In-Wall) subwoofer, please refer to
the SC-600 IW Quick Install Guide.

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I n s ta l l a t i o n

F R O N T P A NE L C ON T R O L S A N D D I S P L AY S

F R O N T P A NE L C ON T R O L S A N D D I S P L AY S

Figure 1: Front Panel Connections of the SC-600D amplifier.

Following are brief descriptions of the controls described in Figure 1. More detail on these
controls can be found in the next section.

(1) Power Switch

This button forces your SC-600D amplifier into standby mode. The power LED turns amber,
the numeric LED shuts off, and the amplifier puts out no power. The unit will remain in this
mode until the POWER button is pressed again. To fully deactivate (i.e. power down) the unit,
use the main power switch on the back panel.

(2) Power LED

This LED illuminates when the power is on. Blue indicates normal operation. The LED turns
amber when the unit is in standby mode or the remote has been used to deactivate the unit,
and dims when the unit is in night mode.

(3) Mic Input

Connect the supplied microphone for the Auto-EQ feature to this mini-jack input.

(4) Remote Eye

This is the eye that receives infrared commands from the supplied remote.

(5) Crossover

Use these Up and Down buttons to select the frequency below which all signals will be routed
to the subwoofer (for example, 80 Hz), rather that to the main speakers. The frequency is
indicated on the LED display, then the display reverts to showing the subwoofer’s volume
level. The slope is fixed at 24 dB/octave. To deactivate the crossover, press BOTH the Up
and Down crossover buttons at the same time – two dashes on the display indicate the
crossover is deactivated and the woofer plays all frequencies presented to it. Please see
page 8 for a more detailed discussion on crossovers.

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(6) LED Numeric Indicator

This LED supplies information on volume, crossover, woofer type, and other information. The
“light” button on the remote deactivates this display. Upon startup, the display shows the
model of subwoofer the SC-600D amp is controlling, then reverts to the volume indicator.

(7) Volume Control

T

hese buttons allow you to balance the output from the subwoofer to the main speakers in
your system. The volume should be set to achieve similar volume level of both the main
speakers and subwoofer. The default volume is 30.

Note: Volume can also be controllable by using the supplied remote.

WARNING: Some manufacturers preset their receivers with the Sub-Out (a.k.a. LFE)
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 Sub­Out 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.

(8) Optional Rack Mount Ears (Included)

These ears can be attached to the SC-600D amp to allow standard 19” rack mounting.

R E A R PA N EL C O NN E C T I O N S

Following are brief descriptions described in Figure 2. More detail on these controls can be
found in the next section.

N10533

Figure 2: Rear Panel Connections of the SC-600D amplifier.

(9) Thru Jacks

These RCA connectors are for passing along the same signal that goes into your subwoofer
to a second “daisy-chained” system. The signal from these RCA connectors is the same as
the input signal.

(10) Line Input / LFE Input

Connect these jacks to the LINE OUT preamp output, LFE output, or subwoofer output jacks
of your receiver/processor. If using the LFE output from your receiver or processor, plug
the single cable into the jack labeled LFE input or, for more signal, use a “Y” connector
(optional) and feed the signal into both “R” and “L” inputs. Examples of these types of
connections can be found in Figures 2A and 2B.

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Line-Level
Subwoofer Signal
from Source (LFE)

Note: A “Y” Connector can
be used as an option.

Figure 2A: Mono (LFE) Line-Level Connection.

N10533

Stereo Line-Level Output
to Another system, e.g. SC-600 IW

Stereo Line-Level
Input from Source

Figure 2B: Stereo Line-Level Connection.

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N10533

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(11) IR Input

An IR repeater can be connected to this mini-jack.

(12) 12V Trigger

When this 2-conductor mini-jack is connected, the amplifier remains in power-off mode until
the trigger is applied. The correct trigger is +12V on the tip of the connector relative to the
grounded sleeve.

(13) RS-232 In

Use this port to communicate with an RS-232 controlled touch panel system. See Appendix
A for an explanation of the use of the serial port, available commands, and their formats.

(14) Signal Sensing Auto On/Off Switch

With this switch in the “standby” position, your subwoofer can be safely left with the main
power switched on continuously. The subwoofer amplifier will turn itself on automatically when
an audio signal is present. If no signal is present for approximately 10 minutes, the unit will
switch to standby mode. While in standby mode, your subwoofer amplifier will draw very
minimal power. This function can be disabled by leaving the switch in the “always on” position.

(15) Speaker Level Input Terminals

If you do not connect the SC-602 amplifier to your receiver using the line input/LFE input
connection (Item 10), connect these input terminals to the speaker output terminals of your
amplifier or receiver. If you use this method of connection, make sure to select the “large”
speaker option in the receiver’s set-up menu. Also, select the option for no subwoofer. This
will make sure all bass and LFE information is fed the speaker outputs and be received by
your SC-600D amplifier.

Note: Using both speaker terminals and the line level inputs is not recommended, as this may
damage the SC-600D amplifier or your receiver.

(16) Speaker Level Output Terminals

These connections send a crossed-over speaker-level signal to the front speakers. When
connected in this fashion, your satellite speakers will be crossed over at 80 Hz. This removes
the lower bass frequencies from your satellites, enabling them to do a better job reproducing
high frequencies.

You may also connect your satellites directly to your receiver or amplifier along with the
subwoofer if you wish to bypass this crossover.

An example of a speaker-level connection is shown in Figure 3.

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Figure 3: Speaker-Level Connection.

(17) Subwoofer Connection 5-Way Binding Post Terminals

Connect the output terminals to the subwoofer being controlled by the SC-600D amplifier.
Only connect ONE subwoofer to the red/black pair of subwoofer output terminals - DO NOT
connect multiple subwoofers to the terminals in any configuration.

Caution!!!

To avoid damage to your SC-600D amp and subwoofer, be sure to maintain correct polarity
when making all speaker connections; red (positive) to red, and black (negative) to black. Be
sure that all connections are tight, and that there are no loose strands or frayed wires.

(18) Power Cord Adapter

Connect the detachable power plug to this male interface connection. The detachable cord
allows for easy replacement should the original become damaged.

(19) Fuse

If the unit is not functioning, check the fuse. If the fuse is blown, replace with an identically
rated fuse. If the fuse blows again, refer the unit for service.

(20) Main Power Switch

Press the POWER switch to the ON position to activate the amplifier. If the unit is to be left
unused for an extended period of time, move this switch to the OFF position to prolong the
life of the amplifier.

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R e a r Pa n e l C o n n e c t i o n s — D e ta i l e d E x p l a n a t i o n

The SC-600D amplifier is equipped with both speaker-level and line-level inputs. Use the
RCA/Phono type “INPUT” jacks when connecting from a pre-amp, signal processor, or line-level
crossover. The “SPEAKER LEVEL INPUT” jacks 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: Do not use both the RCA/Phono “INPUT” connections and “SPEAKER LEVEL INPUT”
connections simultaneously.

A B O U T L O W - P A S S C R O S S O V E R S

All of the SC-600D amplifier 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 30 to
160 Hz. The subwoofer’s response will begin rolling off above the frequency you set this control
to. The slope is 24 dB/octave.

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 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. The SC-600D amp’s
crossover has a default of 80 Hz.

Most receivers and processors provide a menu option in which you can characterize main
speakers as “large” or “small” speakers. This affects the bass signals passed to the main
speakers. We recommend in most cases setting the main speakers to “small,” despite their
size and frequency response characteristics, allowing all multi-channel bass and LFE signals to
be passed to the SC-600D. This is because the powerful 400 watt SC-600D amp combined
with the SC-600 subwoofer are more likely suited to low bass reproduction than your amp and
main speaker. With the burden of low frequency reproduction relieved, your speakers will exhibit
better performance, and your overall system performance will improve.

D i s a b l i n g t h e L o w - P a s s C r o ss o v e r ( S u b w o o f e r D i r e ct )

If your receiver/processor provides a crossed-over signal to the subwoofer, you may want to
bypass the SC-600D amp’s low-pass crossover. To do this, depress BOTH the Crossover UP
and Crossover DOWN buttons simultaneously. The numeric LED will show
the low-pass crossover has been defeated. To reactivate the low-pass crossover, simply push
the crossover UP or crossover DOWN buttons.

indicating that

--

A W O RD A B OU T Y OU R H OM E T HE A T E R R E C E I V E R ’ S
C R O S S O V E R A N D T H E S C - 6 0 0 D A M P L I F I E R ’S C R OS S OV E R

Your Velodyne SC-600D amplifier is designed to operate using the full range audio signal for
input when using the built-in crossover. Many home theater processors/receivers have a
“subwoofer out” jack that performs this same function and are designed to be used with a
powered subwoofer.

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In these installations, you may want to bypass the crossover in either the processor or the
Velodyne SC-600D amplifier as described above. However, in some cases you may want to use
BOTH crossovers. If you choose to do this you should stagger the frequencies, (i.e., 120 Hz
subwoofer, 80 Hz processor) for best results.

Note: If not using an external crossover, you should use the subwoofer’s 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.

A W O RD A B OU T I NT E R C O N N E C T C A B L E S

When installing your Velodyne SC-600D amplifier using the line-level connections, you should
always use high quality shielded interconnect cables. It is recommended that you keep the
length of cable as short as possible to avoid any potential external interference problems.

When connecting the SC-600D amplifier to your subwoofer, use a quality speaker cable that is
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. Extremely large gauge wire may not properly fit in the
binding posts, resulting in a poor connection and possible short circuits.

A W O RD A B OU T S UB W O O F E R P L A C E M E N T

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 room placement,
depending on the acoustic properties of the 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. Typically, a minimum distance
of one to two feet from your TV to the subwoofer will be adequate to avoid any
magnetic interference.

Remember that the built-in 5-band EQ will help to get the most performance out of your
subwoofer no matter where it is placed.

Caution!

This amplifier is an electronic device. Do not place the amplifier next to sources of heat such
as furnace registers, radiators, etc. Likewise, do not place the amplifier 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.

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S e l e c t i n g t h e S u b w o o f e r t o b e C o n t r o l l e d

Your SC-600D amplifier can control the Velodyne SC-600 Series subwoofers as well as generic
passive subwoofers. Special internal software settings are designed to maximize performance
and reliability depending on the model of subwoofer being controlled, so it is important to match
the SC-600D amplifier with the subwoofer it is controlling. The SC-600D amplifier comes with
a default setting for the SC-600 IW subwoofer. When the unit is first powered up, the model
being controlled is displayed for two seconds on the numeric LED before the display reverts to
the volume setting. The subwoofer to be controlled is shown as follows:

Model LED Display

SC-600 IW (In-Wall)

SC-600 IF (In-Floor)

SC-600 IC (In-Ceiling)

Generic Subwoofer

Note: Both the IF and the IC settings control the SC-600 In-Floor/In-Ceiling (IF/IC) subwoofer
and have identical internal settings.

To change the subwoofer to be controlled, first power down the amplifier using the main power
switch on the back panel (DO NOT use the power button on the front panel). Then, turn the
switch on while depressing any of the buttons on the front panel (crossover up or down, or
volume up or down). The unit will show the model it is currently controlling. To change the
model, simply push the crossover up or crossover down buttons and the model changes on the
LED display. Once the desired model is seen on the LED display, simply release the button. You
don’t need to do anything else - the model to be controlled is automatically stored in the
SC-600D amp’s memory. To exit model selection mode, use the main power switch on the back
panel to power down and power up the unit. You should see the model you selected for two
seconds on the LED display before the display reverts to the volume.

I W

I F

I C

GS

Note: The SC-600D amplifier can control only one subwoofer at a time, either the
SC-600 IW or SC-600 IF/IC.

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U s a g e

This section addresses EQ setup and day-to-day usage of your SC-600D amplifier.

R e m o t e C o n t r o l

The features of the SC-600D remote control are listed below.

• POWER — This button forces your SC-600D amplifier unit into
standby mode. The power LED turns amber, the numeric LED
shuts off, and the amplifier puts out no power. The unit will
remain in this mode until the POWER button is pressed again.
To fully deactivate (i.e. power down) the unit, use the main
power switch on the back panel.

Note: The master power switch on rear panel must be on in
order for the front power button to function.

• MUTE — This button mutes the subwoofer’s output. The LED
on the amplifier will show 00 if the unit is muted. To unmute
the subwoofer, press the MUTE button again and the original
volume setting shows on the LED.

Figure 5: SC-600D Remote.

• EQ — This button automatically EQs the subwoofer using a 5-band internal graphic equalizer.
To use this feature, first plug the supplied microphone into the Mic-In jack on the front panel
of the amplifier and place the mic in your preferred listening position. Then press EQ on the
remote for about 2-3 seconds. The subwoofer emits 12 “sweep tones” that cover the
frequencies between 20 and 150 Hz. The LED displays “AU” during the Auto-EQ process.
After the sweeps are complete, the unit saves its EQ settings and returns to normal
operation. To prevent accidental invocation of the EQ feature, you must hold down the EQ
button for 2-3 seconds before the EQ sweeps begin.

Note: Each time the EQ feature is utilized, the EQ settings for the SC-600D amplifier are reset.
If the microphone is not plugged in, the SC-600D amplifier will emit one or two sweep tones
then cease the EQ operation. In this case, the previous EQ settings will be preserved.

T

• PHASE —

hese buttons allow you to optimize the subwoofer performance for the location
and your listening position. Play some bass-heavy music. While listening, push one of the four
phase buttons, listen for a few moments, and then press the next phase button. In most
installations, one of the four button positions will offer an audibly better blend of subwoofer
and speakers. Selecting the correct phase position is just that easy. The LED will show the
phase selected by showing “PH” followed by the phase number: 0, 90, 180 or 270.

• LIGHT — If you wish, you can deactivate the numeric LED on your SC-600D amplifier.
To do this, press the LIGHT button on your remote. To reactivate the LED, press the LIGHT

button again.

• NIGHT — Night mode limits the maximum dynamic output of the subwoofer for late night

listening or to be more considerate of close neighbors. Press the night button to turn the
night mode feature on or off. Activation of night mode causes “n” to appear briefly on the
display. When night mode is deactivated, the display shows “n off” and then returns to
normal function.

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• 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 volume level
of both the main speakers and subwoofer. When pressing volume up or down, the volume
level change is shown on the numeric LED on the front panel.

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.

Note: The volume can also be adjusted via the volume buttons on the front panel of the
amplifier. These buttons have the same effect as pressing the up and down volume buttons on
your remote.

• PRESETS — There are four presets, consisting of Movies, R&B – Rock, Jazz – Classical, and

Games. As a preset is chosen, the preset is shown on the numeric LED as P1 for preset 1,
P2 for preset 2, etc. The presets provide the following characteristics for bass reproduction:

Movies: Maximum output and impact for explosions and other action adventure

movie content.

R&B – Rock: Provides the driving bass found in today’s rock music.

Jazz – Classical: The tightest, cleanest, lowest distortion bass. The flattest frequency

response of the four presets.

Games: Maximum loudness available for the impact of video games.

Each preset has its own characteristics with respect to subsonic filter, volume differential and
a single contour equalizer in order to optimize the listening mode for the preset.

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The following table indicates musical style and which preset is recommended for it.

MUSICAL STYLE SUGGESTED PRESET

Action Adventure Movies Movies
Country – Rock R&B – Rock
Country – Soft Jazz – Classical
Folk Jazz – Classical
Indie Music R&B – Rock
Pop R&B – Rock
Rock R&B – Rock
Alternative Rock Jazz – Classical
Blues Jazz – Classical
Broadway and Vocalists Jazz – Classical
Children’s Music Jazz – Classical
Christian and Gospel Jazz – Classical
Classic Rock R&B – Rock
Classical Jazz – Classical
Dance and DJ R&B – Rock
Hard Rock/Heavy Metal R&B – Rock
Latin Music R&B – Rock
Miscellaneous Jazz – Classical
Movies – Non-Action Adventure Jazz – Classical
New Age Jazz – Classical
Opera and Vocal Jazz – Classical
R&B R&B – Rock
Rap and Hip-Hop R&B – Rock
Soundtracks R&B – Rock or Jazz – Classical
Video Games Games

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R e s t o r i n g D e fa u l t s

There is a feature that allows you to restore default settings for your SC-600D amplifier. By
pressing presets in EXACTLY the following order on the remote, the unit’s power light will blink
indicating that you have restored defaults.

Preset 1: Movies
Preset 2: R&B – Rock
Preset 3: Jazz – Classical
Preset 4: Games
Preset 4: Games
Preset 3: Jazz – Classical
Preset 2: R&B – Rock
Preset 1: Movies

When you press the presets in the above order, the numeric LED will display “P3” indicating that
you have restored defaults. The unit’s volume is reset to level 30 out of 80.

C a r e o f y o u r A m p l i f i e r a n d S u b w o o f e r

Do not use any harsh detergents or chemicals to clean the SC-600D chassis or the subwoofer
cabinet. Abrasives, detergents, or cleaning solutions will damage the finish on the SC-600D
chassis or the subwoofer cabinet. We recommend using a damp cloth to clean the front, back
and sides.

During normal conditions, the amplifier 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.

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T r o u b l e s h o o t i n g a n d S e r v i c e

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 on the amplifier (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. Has the power button been depressed on the remote?

7. Is the remote non-responsive? We recommend replacing the batteries in the remote.

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 an SC-600D Amplifier!

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Specifications SC-600 IW (In-Wall) SC-600 IF/IC (In-Floor/In-Ceiling)

Woofer:

Two 6.5" active drivers
Two 12.5" x 3" passive radiators

12" (9.7" piston diameter) subwoofer

Frequency Response:
Overall (+/-3 dB)

37-120Hz
23-250 Hz, 34-180 Hz

25-120Hz
15-200 Hz, 24.9-120 Hz

Harmonic Distortion: <5% (typical) <5% (typical)

Magnet Structure: 56 oz.

(3.5 lbs.)

Voice Coil: 2” 4 layer copper coil 2.5" 4 layer copper coil

Dimensions (H/W/D):
(inc. feet & grille)

18.6" x 16.5" x 4.3"
(47.2 x 42 x 11 cm)
**excludes grilles, mounting tabs, etc.

9" x 14" x 32"
(23 x 35.6 x 81.3 cm)
**Allow 1-2 extra inches in depth for wire

Cabinet: Passive radiator design Slotted bass reflex enclosure

Warranty:
(North America)

22 lbs. (9 Kg)

40 lbs. (18 Kg)

Specifications SC-600D Subwoofer Amplifier

Amplifier:
(Class D)

400 watts Dynamic
200 watts RMS Power

High Pass Crossover: 80Hz (6 dB/octave)

Low Pass Crossover: 30Hz-160Hz, Defeatable,

24 dB/octave slope

Inputs: Line and Speaker Level

Outputs: Line-level throughput, speaker level:

80 Hz up (subwoofer out)

Phase: 0°, 90°, 180°, 270°

Dimensions (H/W/D):
(inc. feet & grille)

3.6" x 17" x 13"
(9 x 43.3 x 33 cm)

**Allow two extra inches in depth for wire
connectors and power cable.

**Includes feet. Feet can be removed for
rack mount use. Unit is approximately
“two rack units” high.

Warranty:
(North America)

Shipping Weight:

(approx.)

17 lbs. (7.7 Kg)

The following subwoofers are designed to work with the SC-600D amplifier:

Shipping Weight:

(approx.)

64 oz (4 lbs) each
active / 128 oz (8 lbs) total

Three years (electronics - parts and labor)

Five years (drivers - parts and labor)Five years (drivers - parts and labor)

S p e c i f i c a t i o n s

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App en dix A: R S- 2 32 Ser ia l Ov erv ie w a n d C o mm an d s

I n t r o d u c ti o n

This document outlines Velodyne’s SubContractor (SC) RS-232 protocol specification. This
protocol indicates how SC products receive run-time commands from devices such as Creston
Universal Remote Controls.

C o m Po r t S e t u p

Use standard communications settings: Baud Rate: 9600, Data Bits: 8, Parity: None,
Stop Bits: 1

S C I N an d O UT P o r t P in C o nf i g u r a t i o n

SC serial ports use a standard configuration that allows direct connection to a PC via a FEMALE
to MALE serial cable. It uses only three pins (Transmit, Receive, Ground).

The pin configurations are:

IN: Pin 2 = Transmit

Pin 3 = Receive
Pin 5 = Ground

OUT: Pin 2 = Receive

Pin 3 = Transmit
Pin 5 = Ground

Runtime Command Format

Byte Number Byte Description Notes

0 ‘#’ Header Character

1 to 3 or 4 Command and 3 to 4 ASCII characters see formats below

Parameter Data Case sensitive

-

CAPS ONLY!

4 or 5 ‘$’ Termination Character (required or

command is ignored)

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RS232 Commands

Activity Command Acceptable Example(s) Comments

Format n Values

Volume Control #VOnn$, 00 – 80 #VO25$, Sets volume to a value,

#VO+$, #VO+$, increments volume up
#VO-$, #VO-$, or down, or requests
#VO?$ #VO?$ current volume setting

Preset Control #PSn$, 1, 2, 3, 4 #PS1$, #PS2$, Activates the indicated

#PS?$ #PS3$, #PS4$, preset, or requests

#PS?$ the current preset

Logo Light #LTn$, 0: Light Off #LT0$ Turns the Logo Light
Control #LT?$ 1: Light On #LT1$ on or off, or requests

#LT?$ light state

Night Mode #NMn$, 0: Night #NM0$ Activates/Deactivates
Control #NM?$ Mode Off #NM1$ Night Mode, or

1: Night #NM?$ requests light
Mode On mode state

Mute Control #MUn$, 0: Mute Off #MU1$ Mutes/Unmutes the

#MU?$ 1: Mute On #MU?$ woofer, or requests
#MU0$ mute state

Power Control #JUn$, 0: Power Off #JU0$ Powers On/Powers

#JU?$ 1: Power On #JU1$ Off the woofer, or

#JU?$ requests power state

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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

www.velodyne.com

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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63-SC600 RevE MAR2011

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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

www.velodyne.com

Service E-mail: [e-mail]

Product E-mail: [e-mail]

Technical E-mail: [e-mail]