Classe Audio CA-150 User manual

CLASSÉ AUDIO

CA-150

POWER AMPLIFIER

CA-150

OWNER'S MANUAL

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 engneering 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-150

OWNER'S MANUAL

TABLE OF CONTENTS

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

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

CONNECTIONS FOR REGULAR OR BALANCED INPUTS......... 7

WARRANTY ...................................................................................... 10

WARRANTY REGISTRATION ........................................................ 12

SPECIFICATIONS .............................................................................. 13

UNPACKING & SET-UP

Your CLASSÉ CA-150 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 linecord

2) Allen key for top plate

Please report any damage or missing parts to your dealer as soon as possible.

Place the CA-150 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 accessary.

The power transformer in the CA-150 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-150 has only one fuse, the rating of which should be as follows:

LINE VOLTAGE FUSE RATING

100 or 120 V.A.C. 6 AMP FAST BLOW

125 or 250 volts

220 or 240 V.A.C. 4 AMP FAST BLOW

250 volts

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. SEE ALSO THE 10 WARRANTY SECTION OF THIS OWNER'S MANUAL.

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 [UP] position. (Units preset at factory for STEREO.)

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

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

phasing of the loudspeaker connections, and tighten.

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 [DOWN].

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

automatically disconnected. MONO output connections are marked below the connectors.

Repeat the above MONO settings and connections on the second CA-150 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" or switchbox set-up. Do not use with electronic crossovers which have a

common ground.

REMOTE CONTROL: (OPTIONAL)

With a simple connection from the receiver box to the remote jack at the back of the amplifier,

(see Figure 1) the power amplifier can be turned ON/OFF from a distance (or from another room).

CONNECTIONS FOR REGULAR OR BALANCED INPUTS:

The CLASSÉ CA-150 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, and balanced interconnects with "XLR" connectors are

also required. Regardless of the amplifier inputs used, stereo or mono operation is still possible on the

CA-150.

REGULAR INPUTS

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

factory set for regular use.) Connect the regular interconnects to the RCA input jacks on the rear panels

of the CA-150. The balanced connectors are automatically disabled.

BALANCED INPUTS

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

preamplifier and balanced interconnects are also required. 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-150

which are wired as follows:

PIN 1: GROUND

PIN 2: POSITIVE (NON-INVERTED) SIGNAL

PIN 3: NEGATIVE (INVERTED) SIGNAL

If the pin configuration of the preamplifier differs from above, the balanced interconnects must be

modified to accomodate the different preamp.

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-150. (To remove the connectors, press the tab

above the connector.)

MONO OPERATION

As stated before, 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.

CLASSÉ CA-150 LIMITED FACTORY WARRANTY (North America only).

IMPORTANT: Warranty registration, and a copy of the “Authorized Dealer Bill of Sale” must be

received at the Classé Audio factory (address: pages 12) within thirty (30) days of purchase by the

original retail purchaser in order to validate these warranty.

FIVE YEAR WARRANTY (all parties)

Classé Audio, Inc. warrants this product to be free from defects in materials and workmanship to the

original retail purchaser for a period of FIVE YEARS from date of manufacture, provided that any

claim in virtue of this warranty be made in writing within such period.

This warranty may not be transferred to any subsequent owner unless the following conditions have

been met: the product will be re-sold through an authorized Classé Audio dealer, who will be

responsible for contacting Classé with all specifics (name of new owner, address of new owner, serial

number of the product) of the subsequent sale. If the subsequent owner has purchased the product

through an authorized Classé Audio dealer, and all of the above conditions have been met, the new

owner will have the benefit of any remaining coverage from the original five year period.

In order to initiate service of any kind, it is necessary to OBTAIN PRIOR FACTORY AUTHORIZATION,

AND SHIP THE UNIT PREPAID TO THE CLASSÉ FACTORY. Units coming from the USA should be

shipped directly to our CUSTOMS BROKER: STARBER FRITZ INTERNATIONAL C/O

CLASSÉ AUDIO, HIGHWAY 114 EAST, NORTON, VERMONT 05907 USA.

The warranty shall be void and of no effect in the event of any of the following:

1) Operation not in accordance with this manual.

2) Accident, abuse, tampering, or unauthorized

modification, as determined by Classé Audio Inc.

3) Removal, defacing, or falsifying the serial number plate.

4) Shipping without the complete factory packaging;

5) Transfer or sale of this amplifier by the original owner;

6) Non-compliance with any of the other conditions hereof.

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