Yorkville Sound CA12 User Manual
MULT I - Z O N E P ROFESSIONAL PA AMPLIFIER
MODEL TYPE: YS1048
C O L I S E U M
OWNER'S MANUAL
MANUEL DE L'UTILISTEUR
CA12
Manual-Owners-CA12-00-1v1.pdf
IMPORTANT SAFETY INSTRUCTIONS
safety-4v3.eps • Oct. 26/05
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER (OR BACK).
NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
Read Instructions
The Owner’s Manualshould be read and understood
before operation of your unit. Please, save these instructions for future reference.
Packaging
Keep the box and packaging materials, in case the unit
needs to be returned for service.
Warning
When using electric products, basic precautions should
always be followed, including the following:
Power Sources
Your unit should be connected to a power source only of the voltage
specified in the owners manual or as marked on the unit. This unit has a
polarized plug. Do not use with an extension cord or receptacle unless
the plug can be fully inserted. Precautions should be taken so that the
grounding scheme on the unit is not defeated.
Hazards
Do not place this product on an unstable cart, stand, tripod, bracket or
table. The product may fall, causing serious personal injury and serious
damage to the product. Use only with cart, stand, tripod, bracket, or
table recommended by the manufacturer or sold with the product.
Follow the manufacturer’s instructions when installing the product and
use mounting accessories recommended by the manufacturer.
The apparatus should not be exposed to dripping or splashing water;
no objects filled with liquids should be placed on the apparatus.
Terminals marked with the “lightning bolt” are hazardous live; the
external wiring connected to these terminals require installation by an
instructed person or the use of ready made leads or cords.
Ensure that proper ventilation is provided around the appliance.
No naked flame sources, such as lighted candles, should be
placed on the apparatus.
Power Cord
The AC supply cord should be routed so that it is unlikely that it will be
damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT.
Service
The unit should be serviced only by qualified service personnel.
AVIS:
AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE,
N’ENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE)
NE CONTIENT AUCUNE PIECE
REPARABLE PAR L’UTILISATEUR.
CONSULTEZ UN TECHNICIEN QUALIFIE
POUR L’ENTRETIENT
INSTRUCTIONS RELATIVES AU RISQUE
DE FEU, CHOC ÉLECTRIQUE, OU
BLESSURES AUX PERSONNES
Veuillez Lire le Manuel
Il contient des informations qui devraient êtres comprises
avant l’opération de votre appareil. Conservez S.V.P. ces
instructions pour consultations ultérieures.
Emballage
Conservez la boite au cas ou l’appareil devait être
retourner pour réparation.
Attention:
Lors de l’utilisation de produits électrique, assurezvous d’adhérer à des précautions de bases incluant
celle qui suivent:
Alimentation
L’appareil ne doit être branché qu’à une source d’alimentation
correspondant au voltage spécifié dans le manuel ou tel qu’indiqué sur
l’appareil. Cet appareil est équipé d’une prise d’alimentation polarisée.
Ne pas utiliser cet appareil avec un cordon de raccordement à moins
qu’il soit possible d’insérer complètement les trois lames. Des
précautions doivent êtres prises afin d’eviter que le système de mise à
la terre de l’appareil ne soit désengagé.
Risque
Ne pas placer cet appareil sur un chariot, un support, un trépied ou une
table instables. L’appareil pourrait tomber et blesser quelqu’un ou subir
des dommages importants. Utiliser seulement un chariot, un support,
un trépied ou une table recommandés par le fabricant ou vendus avec
le produit. Suivre les instructions du fabricant pour installer l’appareil et
utiliser les accessoires recommandés par le fabricant.
Il convient de ne pas placer sur l’appareil de sources de flammes
nues, telles que des bougies allumées.
L’appeil ne doit pas être exposé à des égouttements d’eau ou des
éclaboussures et qu’aucun objet rempli de liquide tel que des vases
ne doit être placé sur l’appareil.
Assurez que lappareil est fourni de la propre ventilation.
Les dispositifs marqués d’une symbole “d’éclair” sont des parties
dangereuses au toucher et que les câblages extérieurs connectés à
ces dispositifs de connection extérieure doivent être effectivés par un
opérateur formé ou en utilisant des cordons déjà préparés.
Cordon d’Alimentation
Évitez d’endommager le cordon d’alimentation. N’UTILISEZ PAS
L’APPAREIL si le cordon d’alimentation est endommagé.
Service
Consultez un technicien qualifié pour l’entretien de votre appareil.
C O L I S E U M
CA12 Multi-Zone Professional PA Amplifier
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Introduction
The CA12 is a major step forward in installation amplifier technology. Twelve mono Zone power amplifiers,
featuring 85% class D design technology, can operate as 6 independent Zone amplifiers. Self-explanatory
Input and Output connections are easy to follow since any of the 12 mono amplifiers can be connected to
either 70-Volt, 8-Ohm or 4-ohm speaker circuits.
Each of the 12 mono amplifiers has their own input and output connectors and level controls. Up to 6
stereo Zones (4-ohm or 70-Volt at 50 Watts / channel), 6 mono/bridged Zone amplifiers (110 Watt bridged
8-ohm or 140-Volt). Each Zone can be configured independently allowing a combination of Stereo 4-ohm
or 70 Volt and Mono/Bridged 8-ohm or 140 Volt Zones. Dual-function LEDs on the front panel provide both
activity and Clip indication for each pair of amplifiers, which also have their own button-selectable Limiter;
Stereo/Bridge modes and 4-ohm/70V modes are also selectable.
The Ch. Input Line/Bus switch selects between either the Bus Input (button depressed) or the individual
Zone’s Input signal. Additional features include: any amplifier with no signal at its input is automatically
shut off and the CA12 is able to operate either on 120V/60Hz or 220V/50Hz AC mains.
Features and Functions
AC Mains. The CA12 comes configured to connect to 115V/60Hz mains. For use with 230V/50Hz mains set
the rear panel Voltage Select switch to 230V (also, replace the T10.0AL/250V fuse with a T5.0AL/250V fuse).
Front Panel
1. Left/Mono and Right Controls
These controls regulate the level for each amplifier. For the Zones set up in Mono/Bridge
mode only the Left/Mono Control will affect the level.
2. On/Clip LED
The individual channel’s On/Clip LED will flash to indicate activity, flashing red will indicate
clipping. Reduce levels if clipping is indicated (the LED does not indicate which Zone
channel is clipping).
3. Power
This switch turns the AC mains On or Off.
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C O L I S E U M
Rear Panel
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91011
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4. Bus Inputs
RCA connectors and a screw terminal strip are
provided to connect your mixer, stereo tuner/preamp,
CD player or other audio media device.
Note: use only one type of source.
5. Bus Outputs
These RCA connectors are simply
in parallel with the Bus Inputs and
enable you to interconnect the CA12
with another CA12 or amplifier.
Note: only the Input Bus signals
will be patched to Output.
The Following Applies to Each
One of the Zone Input Sections
6. Ch Line Input
These inputs allow connection of
sources directly to the individual
channels. This input allows stereo,
line-level source or two separate
mono audio sources. If you Bridge
the Zone’s pair of amplifiers into an 8-ohm
speaker circuit, use the Left input and connect a
mono source.
7. Line/Bus Button
Each Zone’s input source can be selected
using this switch. Depress the button to select
the audio program coming from the Bus
Input or leave it in the up position to use
the Zone’s Line Input.
8. Remote Volume Jack
Using a cable terminated with a
¼-inch mono phone plug, connect
your DC remote volume control
source (a potentiometer for example)
here. When connected, this feature
bypasses both front panel
controls for this Zone.
9. Limiter In/Out Button
The Limiter In/Out
button activates a
pre-set input limiter,
which helps reduce the level of accidental loud
noises and clipping distortion for each Zone
(both channels of each Zone).
10. Stereo/Bridge Button
For stereo, or dual-zone mono operation,
at 50 Watts per channel leave this in the
up position. To combine (i.e. Bridge) the
two into a 110-Watt mono amplifier,
depress the button. In Bridge
mode, the +4 ohm / +70V button
must be in the +4 ohm position
(depressed) to allow for the 8ohm speaker circuit, not 4-ohms!
In bridge mode, an amplifier
encounters a load that is about
one half of its actual value – a
4-ohm load would therefore be
2-ohms to a bridged amp and if
the amplifier isn’t designed to run
safely into such a low impedance
(which the CA12 is not) damage
may occur to the amplifier. We
do not recommend connecting a
70V speaker circuit while in Bridge
mode as the output will be at 140V
and the sound can be distorted.
11. +4 ohm / 70V Button
Leave this switch in the up position if you are
connecting 4-ohm or 8-ohm speaker circuit
(Stereo mode). Depress the button to connect a
70V speaker circuit.
12. Speaker Connections
Insert bare wire ends here and tighten the
retaining screws to secure properly.
For a stereo Zone or dual mono
Zones, connect the + and – system
leads from each Zone to one +4 ohm
and its adjacent – Neg terminal in the
L & R terminal groupings. In Bridge
mode, connect the + and – leads
from an 8-ohm speaker circuit (not
4-ohms – see Stereo/Bridge Button
section above) to each of the
+4 ohm terminals.
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