Velodyne SC-IC User manual

SubContractor™

Series

Amplifier /

Subwoofers

USER’S

MANUAL

SC-1250 Amplifier,

SC-8, SC-10, SC-12, SC-15,

SC-IW,SC-IF,SC-IC Subwoofers

.www.velodyne.com SubContractor User’s Manual

Caution!

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Attention!

III

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Vorsicht!

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Attenzione!

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

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

–SC-1250 Subwoofer Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

–SC-8, SC-10, SC-12, SC-15, SC-IW, SC-IF Woofers . . . . . . . . . . . . . . . . . . . . . . . . .2

Setup Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

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

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

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

–About Low-Pass Crossovers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

–AWord About Your Receiver’s Crossover and the SC-1250 Crossover . . . . . . . . . . .10

–AWord About Interconnect Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

–AWord About Subwoofer Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Selecting the Subwoofer(s) to be Controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

–Using the SC-1250 to Drive Two Subwoofers . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Restore Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Care of Your Amplifier and Subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

–Troubleshooting and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Appendix A: RS-232 Serial Overview and Commands . . . . . . . . . . . . . . . . . . . . . . . . .18

Table of Contents

Congratulations

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Congratulations on your purchase of a Velodyne SubContractor Series subwoofer. This system

represents the state-of-the-art in low frequency reproduction. Read and follow the instructions

below to insure 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 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. Remove all staples used to seal the carton as they can

scratch the chassis. 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.

SC-1250 Subwoofer Amplifier

•Amplifier: 3000 watts dynamic/1250 watts RMS high efficiency, Class D

•DSP-controlled

•4selectable presets for customized listening mode

•Automatic 7 band room equalizer (microphone included)

•Night-mode setting

•Mute control

•Adjustable (30 to 160 Hz) low-pass crossover (defeatable)

•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 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 remote input jack

•Ability to drive up to TWO subwoofers**

** If two subwoofers aredriven, they must each have 8 ohm or higher impedence. SC Series

subwoofers can be run in this fashion. If a more traditional 4 ohm subwoofer is driven with the

SC-1250, only one can be driven.

Product Features

.www.velodyne.com SubContractor User’s Manual

SC-8, SC-10, SC-12, SC-15, SC-IW, SC-IF/IC Subwoofers

SC-8:

-8” (6.5” piston diameter) subwoofer

-2.5” high-temp voice coil

-Oversized spider for linearity at high excursion

-High-excursion EPDM rubber surround

-107 ounce magnet/204 ounce motor structure

-Frequency Response: 28 - 120 Hz (+/- 3 dB)

-8ohm impedance

SC-10:

- 10” (8” piston diameter) subwoofer

-3” high temperature inside/outside voice coil

-Oversized spider for linearity at high excursion

-High-excursion EPDM rubber surround

-162 ounce magnet/346 ounce motor structure

-Magnetically shielded for video use

-Frequency Response: 24 - 120Hz (+/- 3 dB)

-8ohm impedance

SC-12:

-12” (9.7” piston diameter) subwoofer

-3” high temperature inside/outside voice coil

-Oversized spider for linearity at high excursion

-High-excursion EPDM rubber surround

-162-ounce magnet/346 ounce motor structure

-Magnetically shielded for video use

-Frequency Response: 22 - 120Hz (+/- 3 dB)

-8ohm impedance

SC-15:

-15” (12.7” piston diameter) subwoofer

-3” high temperature inside/outside voice coil

-Oversized spider for linearity at high excursion

-High-excursion EPDM rubber surround

-162-ounce magnet/346 ounce motor structure

-Magnetically shielded for video use

-Frequency Response: 22 - 120Hz (+/- 3 dB)

-8ohm impedance

SC-IW (In-Wall):

-4” x 14” rectangular driver (3” x 13.25” piston diameter) with flat Carbon

Fibre/Rohacell/Carbon Fiber sandwich diaphragm

-Neodymium magnet structure

-Quad spider configuration with upper/lower spider modules

-High-excursion EPDM rubber surround

-3” high temperature inside/outside voice coil

-Magnetically shielded for video use

-Frequency Response: 22 - 120Hz (+/- 3 dB)

-8ohm impedance

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

-12” (9.7” piston diameter) subwoofer

-3” high temperature inside/outside voice coil

-Oversized spider for linearity at high excursion

-High-excursion EPDM rubber surround

-162 ounce magnet/346 ounce motor structure

-Magnetically shielded for video use

-Frequency Response: 22 - 120Hz (+/- 3 dB)

-8ohm impedance

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

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

See page 11 of the User’s Manual.

❑Install and wire the subwoofer per the instructions on pages 3 - 9.

❑Select the proper model per the instructions on page 11.

❑Be sure the low pass crossover is set correctly. See pages 9 - 10.

❑Be sure to equalize the subwoofer using the microphone and Auto-EQ feature.

❑Be sureto set the phase control on the remote. See page 12.

❑Select the correct preset for the source material. See pages 13 – 14.

Your new Velodyne amplifier 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.

FRONT PANEL CONTROLS AND DISPLAYS

Figure 1: Front Panel Connections of the SC-1250.

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 push button style switch is the main on/offfor the unit.

(2) Power LED

This LED illuminates when the power is on. Blue is normal operation. It turns amber when

the unit is in standby mode or the remote has been used to deactivate the unit. This LED

dims when the unit is in night mode.

Installation

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Setup Checklist

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(3) Mic Input

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

(4) Remote Eye

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

(5) Low-Pass Crossover

Use these up and down buttons to select the high-frequency range at which you wish to cut

off the signal to the subwoofer. The frequency is indicated on the LED display briefly, then

the display reverts to showing the subwoofer’s volume. 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 9 for a more detailed discussion

on crossovers.

(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-1250 is controlling, then reverts to the volume indicator.

(7) Volume Control

These 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 from between both

the main speakers and subwoofer.The default volume is 30.

Note: Volume is also controllable by using the supplied remote.

(8) Optional Rack Mount

These detachable ears allow the SC-1250 to be rack mounted.

REAR PANEL CONNECTIONS

Figure2: Rear Panel Connections of the SC-1250.

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