Classe Audio CA-200 Manual de usuario

CA-200 ISSUE 3 DEC. ‘97

CLASSÉ AUDIO

CA-200

POWER AMPLIFIER

CA-200

OWNER'S MANUAL

CA-200 ISSUE 3 DEC. ‘97

-2-

CLASSÉ DESIGN PHILOSOPHY

1. REPEATED LISTENING DESIGN SESSIONS:

Fine tuning of sound by exchanging and mixing of parts (transistors, capacitors, wiring, PCB

boards etc.), and adjusting many specific operating voltages within proper engineering ranges,

producing an overall sonic recipe giving the most natural harmonic realism of music typical of

instruments in a live performance.

2. UPGRADABLE SINGLE CIRCUIT DESIGNS:

All Classé products (all preamps and all amps) share exactly the same circuit (excluding moving

coil and moving magnet phono circuits). This means all amplifiers and all high level circuits of

the preamps are the same. The same circuit is tailored to different power levels etc. Differences

between less expensive models and more expensive models are parts quality and compliment,

power supply extravagance and the amount of filtering etc., as well as features and packaging.

This means that for years Classé has been constantly fine tuning and upgrading this circuit and

its application, thus reaching a very high level of understanding and musical achievement which

benefits all models - least expensive, most expensive, preamps and amplifiers alike.

3. EXTREME LONG LIFE IN REAL WORLD CONDITIONS:

Choosing the best attainable quality parts and materials combined with the advantages of the two

above-mentioned areas provides Classé owners with years of proven trouble free reliability and

musical enjoyment.

CA-200 ISSUE 3 DEC. ‘97

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CA-200

OWNER'S MANUAL

TABLE OF CONTENTS

UNPACKING & SET-UP............................................................... 4

GENERAL CONNECTIONS.......................................................... 5

CONNECTIONS FOR REGULAR OR BALANCED INPUTS ... 8

PROTECTION CIRCUIT................................................................ 10

CA-200 BACK VIEW....................................................................... 11

CA-200TOPVIEW..............................................................................12

SPECIFICATIONS........................................................................... 14

CA-200 ISSUE 3 DEC. ‘97

UNPACKING & SET-UP

Your CLASSÉ CA-200 power amplifier is packed in high density, semi-rigid foam placed in

a special cardboard box. To remove the unit, open and spread all the top flaps of the box and by its

sides, lift out the entire unit and put it on a large flat surface. Take it out of the plastic bag and

inspect the unit for any concealed damage. Apart from this owner's manual, please ensure the

following has also been included:

1) Detachable A.C. linecord

2) Allen key for top plate

3) Nut driver for output connectors

Please report any damage or missing parts to your dealer immediately.

Place the CA-200 at or near its final set-up position, allowing 8 inches at the rear for

tightening the speaker output connectors. For optimum sonic performance, we recommend the

optional CLASSÉ REFERENCE A.C. LINECORD. Consult your dealer regarding this accessory.

The power transformer in the CA-200 is located at the front-center of the unit. Ideally, a few

feet should separate this area from components which potentially could pick up hum. These include

preamplifiers, turntables, and interconnect cables. In terms of providing adequate airspace for

cooling, a good rule of thumb is to allow 6 inches above and 3 inches on each side of the unit.

Check the Serial Number sticker on the back of the unit for the correct operating voltage.

The CA-200 has one external AC fuse, the rating of which should be as follows:

LINE VOLTAGE FUSE RATING

100 or 120 V.A.C. 10 AMP SLOW BLOW

125 or 250 volts

220 or 240 V.A.C. 8 AMP SLOW BLOW

250 volts

CA-200 ISSUE 3 DEC. ‘97

GENERAL CONNECTIONS

A.C. LINE

Insert the linecord into the A.C. receptacle on the rear of the unit.

CAUTION: SAFETY INSTRUCTIONS

DISCONNECT AC LINE CABLE WHILE MAKING ALL CONNECTIONS. "FLOATING THE

GROUND” OR DEFEATING THE GROUND ON A 3-PRONG LINECORD MAY CREATE

A SHOCK HAZARD. CONNECT ALL INTERCONNECT CABLES BETWEEN THE

ELECTRONICS BEFORE CONNECTING THE A.C. LINECORDS TO THE WALL

OUTLETS. THIS WILL REDUCE THE POTENTIAL SHOCK HAZARD.

STEREO

Input and output connectors are clearly marked on the back of the amplifier. Left/Right

connections are oriented from the front of the unit. Stereo output connections are marked above the

connectors. Switch stereo/mono switch to STEREO position. (The CA-200 is preset at the factory

for STEREO.)

Use only high quality interconnect and loudspeaker cables, and make all connections tight. If

the RCA input plugs are loose, remove them and pinch down the ground leaves slightly with pliers.

Observe correct phasing of the loudspeaker connections, and tighten. DO NOT OVERTIGHTEN

the output connectors.

CA-200 ISSUE 3 DEC. ‘97

MONO

Please read through the previous Stereo section for general notes on securing good

connections, and safety tips. If the unit has been previously used in stereo, make sure it is OFF, and

remove all connections, including the AC line cable. Make sure the STEREO/MONO switch is

switched to the MONO position. NOTE: The Stereo-Mono switch will not operate if the amplifier is

turned on, you will NOT be able to change from one mode to the other, as the mode is “locked”

while the amplifier is on.

The MONO "Input" is the "left channel input", as marked. The unused right channel input is

automatically disconnected. Correct output phase MONO connections are marked below the

connectors.

Repeat the above MONO settings and connections on the second CA-200 to be used for the

other channel.

Please remember that the negative output connection of a bridged amplifier is NOT a

ground. Do not use a "common ground” switch-box set-up. Do not use with electronic crossovers

which have a common ground. Connecting two bridged amplifiers to a common ground device of

any sort will cause the amplifiers to fail.

REMOTE CONTROL: (OPTIONAL)

With a simple connection from a ClassJ“Remote Interface Box” to the remote jack at the

back of the amplifier, (see Figure 1) the CA-200 can be turned ON or OFF from a distance (or from

another room). The “Remote Interface Box” repeats the information sent to the LED on the front of

the amplifier, allowing remote mounting of the amplifier.

CA-200 ISSUE 3 DEC. ‘97

IR OUT and IN:

The CA-200 may also be turned on and off using our SSP-50 Surround Sound Processor,

utilising the IR OUT and IN jacks. To turn on your CA-200 with the SSP-50, Disconnect you

CA200 from the AC line completely, open the top cover and locate the 4 internal jumpers inside the

CA-200 (see fig. 2, page ) alongside the mosfet fuses. When facing the amplifier from the front,

remove the jumper located completely to the right and save this jumper. Re-install the top cover.

Install a mini jack into IR IN at the back of the CA-200 and plug the other end of the mini jack into

the 5VDC mini jack at the back of your SSP-50. When the Standby button of the SSP-50 is pressed,

it will now activate the turn on turn off circuitry of your CA-200. Several amplifiers may be turned

on automatically in sequence or all at once, depending upon the configuration of the jumper settings

in the amplifier. You will find these jumpers located inside the unit (see fig.2 page) alongside the

mosfet fuses. The table below tells you which jumper should be inserted or removed to obtain the

correct sequence on which you will want your amplifier to turn on.

J3 J2 J1 J0 ADRESS RC Button Auto ON

X X X X 0 Amp 1 No

X X X out 1 Amp 2 No

X X out X 2 Amp 3 No

X X out out 3 Amp 4 No

X out X X 4 Amp 5 No

X out X out 5 Amp 6 No

X out out X 0 Amp1 No

X out out out 0 Amp 1 Yes

CA-200 ISSUE 3 DEC. ‘97

SEQUENTIAL TURN ON

Your CA-200 is factory set as being the 1st amp (AMP 1) to be turned on in sequence. To re-

program your unit so that it would be the 2nd , 3rd, 4th, 5th or 6th amp to be turned on in sequence you

have to follow this procedure. Push and hold the power button, when the LED becomes solid green,

depress the button and then press again. The number of times you will press again will determine

when the amplifier will turn on in the sequence. See example on the next page.

EX: Push and hold power button until solid green, when power LED is solid green, depress button

and then push 2 times. Then your amplifier will be the 2nd one to turn on in the sequence.

CA-200 ISSUE 3 DEC. ‘97

CONNECTIONS FOR REGULAR OR BALANCED INPUTS:

The CLASSÉ CA-200 power amplifier is equipped with both regular and balanced inputs.

Either one may be used SEPARATELY, BUT NOT SIMULTANEOUSLY. The balanced inputs must be

connected to a preamplifier which has balanced main outputs. Balanced interconnects with "XLR"

connectors are also required. Regardless of the amplifier inputs used, stereo or mono operation is

possible on the CA-200.

REGULAR INPUTS

Switch the REGULAR/BALANCED switch to the position marked "REGULAR". (The amplifier is

factory set for “REGULAR”.) NOTE: The REGULAR/ BALANCED switch will not operate if the

amplifier is turned on; you will NOT be able to change from one mode to the other, as the mode is

“locked” while the amplifier is on. Connect the regular interconnects to the RCA input jacks on the

rear panels of the CA-200. The balanced connectors are automatically disabled.

BALANCED INPUTS

Switch the REGULAR/BALANCED switch to the position marked "BALANCED". A balanced

preamplifier and balanced interconnects are also required. NOTE: The REGULAR/ BALANCED switch

will not operate if the amplifier is turned on; you will NOT be able to change from one mode to the

other, as the mode is “locked” while the amplifier is on. For use with balanced preamplifiers other

than Classé, the wiring of the 3-pin XLR connectors must be matched to that of the CLASSÉ CA-200

which are wired as follows:

PIN 1: GROUND

PIN 2: POSITIVE (NON-INVERTED) SIGNAL, “HOT”

PIN 3: NEGATIVE (INVERTED) SIGNAL

CA-200 ISSUE 3 DEC. ‘97

BALANCED INPUTS (CONTINUED)

All Classé preamplifiers and amplifiers are configured as above. Some preamplifiers from other

manufacturers have PIN-3 set as the positive or “HOT” side. If this is true of your preamplifier, and

you wish to maintain absolute phase throughout your system, the interconnects must have the wire

which is connected to PIN-3 at the preamplifier output end switched to PIN-2 at the amplifier input

end and the wire which is connected to PIN-2 at the preamplifier output switched to PIN-3 at the

amplifier input end.

Having confirmed the correct connections, plug the XLR connectors of the balanced

interconnects into the locking XLR connectors on the rear panel of the CA-200. Push the connectors

in until the locking mechanism clicks. (To remove the connectors, press the tab above the connector

while pulling gently on the connector body.)

MONO OPERATION

As stated above, either the regular or balanced inputs can be used in stereo or mono.

Connect a single interconnect, either regular or balanced, to the left channel input of each amplifier.

See the "Mono" section above for complete details. NOTE: Neither the Stereo-Mono switch nor the

REGULAR/ BALANCED switch will operate while the amplifier is turned on. You will NOT be able to

change from one mode to the other, as these modes are “locked” while the amplifier is on.

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