Atlas Sound CP700 User Manual

CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

PROTECT

LIMIT

SIGNAL

CH-1

CH-2

PROTECT

LIMIT

SIGNAL

CP700

Commercial Power Amplifier

POWER

CP700 Commercial Power Amplifi er

HIGH-PERFORMANCE, DUAL-CHANNEL, COMMERCIAL AUDIO AMPLIFIER

Specifications are subject to change without notice

AtlasSound.com

©2005 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevC 9/05 PP

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]

CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

TABLE OF CONTENTS

Introduction, Features, Applications.............................................................………………………………….3

Front Panel Description......................................................................…………………………………..…….4

Rear Panel Description......................................................................…………………………………..……..5

Input Wiring......................................................................…………………………………..…………………..7

Speaker Output Wiring...................................................................................………………………………..9

Specifi cations..........................................................................................…………………………………….15

Warranty................................................................................................……………………………………...16

SAFETY INSTRUCTIONS

Please Read Carefully Before Installing or Operating This Product

• Read instructions fully.

• Pay attention to any and all warnings.

• Connect this amplifi er only to the correct operating voltage.

• Do not attempt to service this unit. Only a qualifi ed service technician should open this unit for
servicing.

• Warning - To reduce the risk of fi re or electric shock, do not expose this appliance to rain or moisture.

HEARING DAMAGE!

All professional loudspeaker systems are easily capable of producing very high sound pressure levels.
Use care with the operation of this amplifi er and wear the appropriate hearing protection. Exposure to
excessive sound pressure levels can cause permanent hearing damage.

SHOCK HAZARD!

The Atlas Sound CP700, when in operation, can produce a shock hazard at the speaker terminals.
Make sure the amplifi er is turned off when installing or removing connections at the speaker terminal
barrier strip. After connecting the proper speaker load, REPLACE the terminal strip cover!

VENTILATION

Although the CP700 is fan cooled and has thermal protection circuitry, allow adequate ventilation to
assure trouble free operation. When rack mounting one or more of the CP700s, install an exhaust fan in
the rack to evacuate heat buildup. Consult Atlas Sound’s Technical Support at 1-800-876-3333 for advice
on thermal management and help with rack selection for this product.

RACK MOUNTING

Although the internal output transformers are mounted close to the front panel when rack mounting the
CP700, be sure the unit is adequately supported.

Specifications are subject to change without notice

AtlasSound.com

©2005 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevC 9/05 PP

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]

2

CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

INTRODUCTION

Congratulations and thank you for purchasing the Atlas Sound CP700 dual channel power amplifi er. This
product is a professional grade audio power amplifi er specifi cally designed for demanding contractor
applications and engineered to provide years of faithful service. Two independent channels driven by
separate power supplies ensure maximum channel separation and ultra low distortion fi gures. Whether
your application is a large distributed constant voltage sound system or a high SPL sound reinforcement
system, the Atlas Sound CP700 is the answer for high power/low cost amplifi cation needs.

FEATURES

• Independent power supplies

• Soft clip limiter protection

• Dual-speed, high effi ciency fan cooling

• Stepped attenuators mounted on the rear for security

• Stereo, bridge, or parallel operating modes selectable via rear mounted switch

• Balanced inputs on barrier strip and XLR connectors

• Loop through feature on male XLRs, one per channel input

• Short-circuit, temperature, and DC offset protection

• 25V, 70.7V, 100V, and direct coupled (2,4, and 8 Ohm) outputs mounted on barrier strips with covers
for safety

• Toroidal output transformers provide extended high frequency response and effectively lower the
electrical interference

• Power-up muting

APPLICATIONS

The Atlas CP700 is the perfect choice for distributed paging/BGM systems, foreground music systems, and
distributed sound masking applications. It is also at home in night clubs, theaters, portable sound systems,
and anywhere clean high-fi delity audio amplifi cation is needed.

Specifications are subject to change without notice

AtlasSound.com

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]

©2005 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevC 9/05 PP

3

CP700 COMMERCIAL
POWER AMPLIFIER

FRONT PANEL DESCRIPTION

2

OWNER'S MANUAL

PROTECT

3

Figure 1

SIGNAL

PROTECT

LIMIT

LIMIT

SIGNAL

CH-1

CH-2

CP700

Commercial Power Amplifier

POWER

1

4

1. Power Switch

This rocker switch supplies power to the CP700 amplifi er. A red LED located above the power switch
will illuminate when the CP700 is switched on.

2. Protect LED Indicators

The CP700 features several types of protection circuitry to prevent damage during turn-on or fault
conditions. If any of these LEDs illuminate, one of the various protection features is safeguarding the
amplifi er. The output relays will disconnect the speaker loads when the protection circuitry detects a
fault condition.

• Loudspeaker Protection - When power is fi rst applied, the speaker protection relay is
open, preventing transients from reaching the loudspeakers. After the internal power supplies
have stabilized, the relay will close, connecting the amplifi er output to the load. The yellow
Protect LEDs will illuminate during this power up process.

• Thermal Protection - The CP700 protection circuitry monitors itself for excessive internal
operating temperatures. In the event of this circuitry detecting abnormal thermal conditions
(blocked cooling fan and high ambient temperatures), the speaker relay will disconnect the
speaker load from the amplifi er. Once the internal operating temperature drops back to a safe
level, the relay will close, reconnecting the speaker load to the amplifi er.

• Short Circuit Protection - The yellow Protect LEDs will illuminate should the amplifi er detect
a short circuit on the attached speaker load or if the load impedance is too low. When this
condition is detected, the internal speaker relays will open up, disconnecting the load from
the amplifi er. The protection circuitry will stay activated until the fault is cleared.

Note: Once the specifi c fault has been corrected, the power may have to be cycled to reset the
protection circuitry.

3. Signal "Status" LED Indicator

The green "Status" LEDs will illuminate once the input signal has reached -26dBv or higher.

Specifications are subject to change without notice

AtlasSound.com

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]

©2005 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevC 9/05 PP

4

CP700 COMMERCIAL
POWER AMPLIFIER

4. Limit LED Indicator

The CP700 comes equipped with limiter circuitry and LEDs to indicate when this circuitry is activated.
The limiter circuitry engages only when the input signals reach a specifi c, factory set magnitude. Once
this limit has been reached, the circuitry will reduce the input level enough to prevent clipping at the
speaker output terminals.

OWNER'S MANUAL

REAR PANEL DESCRIPTION

6

CH-1 CH-1

CP700

DIR. OUTPUT ISOL. OUTPUT

10

Commercial
Power
Amplifier

Output Power
400 W / 4 Ohms
350 W / 70.7 V

CH-2 CH-2

DIR. OUTPUT ISOL. OUTPUT

AC100V-50/60Hz
AC120V-50/60Hz
AC230V-50/60Hz
AC240V-50/60Hz

POWER

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

8, 4, and 2 Ohms

+

BRIDGE
MONO

8, 4, and 2 Ohms

-

BRIDGE
MONO

AUDIO TRANSFORMER

-+ 70 1000

-+

70V-+25V

- 100V +

AUDIO TRANSFORMER

-+ 70 1000

-+

70V-+25V

- 100V +

MADE IN CHINA

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

11

IN

AMPLIFIER INPUTS

CH-2 CH-1

THRU

1

6

8

1

1

4

2

1

2

2

6

1

2

0

2

8

3

6

0

4

4

6

2

5

0

0

0

-

LEVEL

GND

PARALLEL BRIDGE

1601 Jack McKay Blvd., Ennis, TX 75119
[phone] AtlasSound.com

9

IN

++- -GND

THRU

1

6

8

1

1

4

2

1

2

2

6

1

2

0

2

8

3

6

0

4

4

6

2

5

0

0

0

-

LEVEL

STEREO

8

7

5

Figure 2

5. Gain Controls

One stepped attenuator per channel increases or decreases the sensitivity of the CP700 2dB per step.
Maximum voltage gain of the CP700 is 32dB.

6. CH1/CH2 Inputs (XLR Connectors)

Two female XLR inputs (one per channel) are provided. These inputs are balanced and confi gured as
follows: pin 1 ground, pin 2 plus, pin 3 minus. The XLR connections are typically used in portable audio
systems where quick connect and disconnect is warranted.

7. Balanced Barrier Strip Inputs

Balanced inputs are provided on this barrier strip for permanent installation applications. The use of
the appropriate spade type lug is highly recommended for best connection integrity and a neat,
professional appearance.

8. CH1/CH2 Loop Through

Two male XLR (one per channel) are provided for looping the input signals to other CP700s or similar
devices. These connectors are wired in parallel with the female XLR inputs, pin for pin.

Specifications are subject to change without notice

AtlasSound.com

1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: [phone] • FAX: [phone]

©2005 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevC 9/05 PP

5