Atlas Sound CP400 User Manual

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

POWER

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

CP400 & CP700 Commercial Power Amplifier

HIGH-PERFORMANCE, DUAL-CHANNEL, COMMERCIAL AUDIO AMPLIFIERS

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

CP400 & 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

Speci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 amplier only to the correct operating voltage.

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

• Warning – To reduce the risk of 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 amplier and wear the appropriate hearing protection. Exposure to
excessive sound pressure levels can cause permanent hearing damage.

SHOCK HAZARD!

The Atlas Sound CP400 and CP700, when in operation, can produce a shock hazard at the speaker
terminals. Make sure the ampli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 CP400 and CP700 are internally fan cooled and have thermal protection circuitry, adequate
ventilation is required to ensure trouble-free operation. When rack mounting one or more of the Atlas
Sound CP Series power ampliers, 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 assistance
with rack selection for this product.

RACK MOUNTING

Although the internal output transformers are mounted close to the front panel, when rack mounting the
CP400 and CP700, be sure the unit has adequate front and rear support.

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

2

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

INTRODUCTION

Congratulations and thank you for purchasing the Atlas Sound CP400/CP700 dual channel power amplier.
This product is a professional grade audio power amplier speci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 gures. Whether
your application is a large distributed constant voltage sound system or a high SPL sound reinforcement
system, the Atlas Sound Series is the answer for high power/low cost amplication needs.

FEATURES

• Independent power supplies

• Soft clip limiter protection

• Dual-speed, high ef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 Ω) 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 CP400/CP700 are the perfect choice for distributed paging/BGM systems, foreground music
systems, and distributed sound masking applications. They are also at home in night clubs, theaters,
portable sound systems, and anywhere clean high-delity audio ampli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]

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

3

CP400 & CP700 COMMERCIAL

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

POWER

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

POWER AMPLIFIER

OWNER'S MANUAL

FRONT PANEL DESCRIPTION

2

1

Figure 1

1. Power Switch

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

2. Protect LED Indicators

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

• Loudspeaker Protection
open, preventing transients from reaching the loudspeakers. After the internal power supplies
have stabilized, the relay will close, connecting the amplier output to the load. The yellow
Protect LEDs will illuminate during this power-up process.

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

• Short Circuit Protection - The yellow Protect LEDs will illuminate should the ampli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 amplier. The protection circuitry will stay activated until the fault is cleared.

Note: Once the speci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 -26 dBV or higher.

3

4

- When power is rst applied, the speaker protection relay is

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

4

CP400 & CP700 COMMERCIAL

++--GND

CH-2 CH-1

AMPLIFIER INPUTS

THRU

IN

THRU

IN

CAUTION

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

TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE P ART S INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL

POWER

CP700
Commercial
Power
Amplifier

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

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

POWER

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

LEVEL

-

0

0

5

6

4

0

3

2

2

6

2

2

1

8

1

6

1

4

1

2

1

0

8

6

4

2

0

LEVEL

-

0

0

5

6

4

0

3

2

2

6

2

2

1

8

1

6

1

4

1

2

1

0

8

6

4

2

0

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

STEREO

PA RALLELBRIDGE

GND

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

AVIS RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

MA D E I N C H I N A

POWER AMPLIFIER

4. Limit LED Indicator

The CP400 and CP700 come equipped with limiter circuitry and LEDs to indicate when this circuitry is
activated. The limiter circuitry engages only when the input signals reach a speci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

10

11

9

8

7

5

Figure 2

5. Gain Controls

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

6. CH1/CH2 Inputs (XLR Connectors)

Two female XLR inputs (one per channel) are provided. These inputs are balanced and congured as
follows: pin 1 ground, pin 2 +, pin 3 -. 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 devices. These
connectors are wired in parallel with the female XLR inputs, pin for pin.

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

5

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

9. Stereo/Parallel/Bridge Switch

This 3 position switch changes the operating mode of the amplier. DO NOT move this switch when
the amplier is powered up and connected to a load.

• Stereo - When the switch is set to this position, the amplier operates as two independent
ampliers. Use this position for stereo program material or for two discreet paging/sound
masking zones.

• Parallel - When the switch is set to this position a single mono input signal is to be used.
Connect the input wiring to either channel 1 OR channel 2. The one input signal will drive both
amp channels. Use this position when two speaker zones are being fed by a mono signal.
(See note below)

• Bridge - When the switch is set to this position, connect the mono input signal to channel 1
ONLY. The speaker load is connected across the two positive terminals as shown in Figure 7 on
page 10. The amplier will deliver approximately twice the voltage across the load. Please
observe the minimum load specication when operating in Bridge mode.

Note: A 6 dB loss of output power will occur when operating in parallel mode. To over come this loss,
connect the positive terminal on input 1 to the positive terminal on input 2 and connect the negative
terminal on input 1 to the negative terminal on input 2. Short lengths of 22-gauge wire can be used.

OWNER'S MANUAL

10. CH1/CH2, Low Impedance Speaker Outputs

The amplier direct speaker outputs bypass the internal constant voltage transformers and are used
for direct connection to loudspeakers. The amplier will operate into 2, 4, and 8 Ω loads. The use
of appropriately sized spade lugs is recommended for speaker wire termination; connect the speaker
line common to the “-” terminal and the positive lead to the “+” terminal.

For high power applications, use the proper gauge wire for the speaker connections. Contact
Atlas Sound Tech Support (1-800-876-3333) for assistance in determining the proper size wire.

11. CH1/CH2, 25/70.7/100V Speaker Outputs

The amplier will drive constant voltage speaker loads for use in commercial business music/paging

systems and sound masking systems. The use of spade lugs for terminating and connecting the
speaker home runs is recommended. The speaker line common connects to the “0” terminal and
the positive lead connects to the desired voltage for required system requires for proper operation
(Figures 8,9,10; Pages 11-12).

Calculating Constant Voltage Loads

To calculate the maximum quantity of transformer coupled loudspeakers you can safely connect

to the amplier, rst add up the total number of speakers that will be connected to one channel
of the amplier, then multiply that total speaker number by the tap setting you plan to use. The
result will be the load in watts that the amp output channel will see. It is good engineering practice
to leave a 20% margin below the maximum rated output power of the amplier. In this case, one
channel of the amplier can supply 350 W of power at 70.7V. Derate this by 20%, leaving 280 W
of power available for constant voltage speakers.

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

6

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

INPUT WIRING

Balanced Inputs

Balanced input wiring requires two conductors with shield (22-gauge is the most common). The use of
crimp type spade lugs is highly recommended for permanent installations. At the input section located on
the rear of the amplier, wire the “hot”/positive lead to the “+” terminal, the “common”/negative lead to the
“-” terminal and the shield/drain to the “ground” terminal (Figure 3).

The XLR inputs (+4 dB balanced line level) can be utilized with standard 3-pin XLR male to female patch
cables to accommodate outputs from a mixer, equalizer, or crossover when the amplier is used as a
portable sound system amplier.

Figure 3

White (+)

Black (-)

Shield

White (+)
Black (-)

Shield

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

7

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

Unbalanced Input

Unbalanced wiring typically is found on consumer equipment (CD players, DVD players, etc.) and is
generally a compromise of noise rejection and cable lengths. A single conductor and an overall shield
are most common, as in the standard cables supplied with consumer equipment. Keep unbalanced wire
lengths within 10' between equipment, wire the hot lead to the “+” terminal, and the shield to the ground
terminal. Install a jumper wire between the “-” terminal and the ground – a loss of gain will result without
this jumper (Figure 4).

Figure 4

White/Red (+)

Shield

White/Red (+)

Shield

OWNER'S MANUAL

Jumper

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

8

CP400 & CP700 COMMERCIAL

CH-2 CH-1

AMPLIFIER INPUTS

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

LEVEL

-

0

0

5

6

4

0

3

2

2

6

2

2

1

8

1

6

1

4

1

2

1

0

8

6

4

2

0

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

OWNER'S MANUAL

SPEAKER OUTPUT WIRING

Low Impedance Direct Coupled Output (Stereo)

For direct coupled operation into 2, 4, and 8 Ω loads, connect the loudspeaker leads to the barrier strip
connections labeled “Direct Output”; connect the hot lead to the “+” terminal and the common lead to
the “-” terminal. The use of heavy gauge wiring is recommended to avoid voltage drops, which can occur
as a result of wasted power in the cable. Contact Atlas Sound Tech Support (1-800-876-3333) for sug­gestions on cable capacities. Be sure you know the quantity of speakers and cable lengths before calling
(Figure 5).

To direct coupled

loudspeakers

To direct coupled

loudspeakers

Figure 5

Low Impedance Direct Coupled Output (Parallel Mono)

Observe the speaker connection information in the preceeding paragraph (Stereo Direct Coupled Output).
With the amplier turned OFF, move the rear mounted selector switch to the “Parallel” position and con­nect your mono input wiring to either the channel one or channel two inputs. Both channels will be driven
from this mono signal (Figure 6).

White
Black

Shield

Switch set

to “Stereo”

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

Optional Jumpers

See Note on Page 6

Switch set

to “Parallel”

Figure 6

9

CP400 & CP700 COMMERCIAL

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

6

4

0

3

2

2

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

Bridge Mono Configuration (Direct Coupled)

If higher power levels are required, the Atlas amplier can be used in Bridge Mono mode, which utilizes
both channels of the amp across the speaker load.

With the amplier turned OFF, move the rear mounted selector switch to the “Bridge” position and connect
the input signal to channel one. Connect your speaker load (4 and 8 Ω only) across the “+” terminals of
both channels, with channel 1 being positive and channel 2 being negative (Figure 7).

CAUTION: A high voltage potential exists across the two “+” speaker terminals when operating in
any Bridge Mode application!

OWNER'S MANUAL

To loudspeakers,

4 Ω minimum

25V, 70.7V, and 100V Transformer Output Wiring

For transformer coupled operation into high impedance loads, connect your loudspeaker leads to the
barrier strip connections labeled “Audio Transformer.” Connect the speaker home runs as follows:

• 25V - Connect the positive speaker lead to the terminal labeled “100” and the negative speaker
lead to the terminal labeled “70” (Figure 8).

• 70.7V - Connect the positive speaker lead to the terminal labeled “70” and the negative speaker
lead to the terminal labeled “0” (Figure 9).

• 100V - Connect the positive speaker lead to the terminal labeled “100” and the negative speaker
lead to the terminal labeled “0” (Figure 10).

Note: Refer to page 6 of this manual to the paragraph entitled “Calculating Constant Voltage Loads” to
determine how many transformer coupled loudspeakers you can drive with the Atlas amplier.

Switch set
to “Bridge”

Figure 7

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

10

CP400 & CP700 COMMERCIAL

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

GND

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

OWNER'S MANUAL

To 25V speaker load

To 25V speaker load

25V

Figure 8

To 70.7V speaker load

To 70.7V speaker load

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

70.7V

Figure 9

11

CP400 & CP700 COMMERCIAL

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

OWNER'S MANUAL

To 100V speaker load

To 100V speaker load

100V

Figure 10

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

12

CP400 & CP700 COMMERCIAL

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

Bridge Mono Transformer Coupled Output Wiring for 140V/200V Output Operation

The amplifier can be configured to drive 140V and 200V speaker lines.

Please observe all necessary safety precautions as the potential for electric shock at the speaker
terminals is present.

With the amplier turned OFF, move the rear mounted selector switch to the “Bridge” position and connect
the input signal to channel 1. Connect your speaker load across the “+” terminals of both output terminals
as follows:

• 140V Operation - Connect the positive lead of the speaker load to the channel 1 70V
positive “+” terminal, the negative speaker lead connects to the channel 2 70V positive “+”
terminal. Connect a suitable jumper wire between the two terminals labeled “0”. Consult your
local codes to determine if Class I wiring is required (Figure 11).

• 200V Operation - Connect the positive lead of the speaker load to the channel 1 100V
positive “+” terminal, the negative speaker lead connects to the channel 2 100V positive
“+” terminal. Connect a suitable jumper wire between the two terminals labeled “0”. Consult
your local codes to determine if Class I wiring is required (Figure 12).

CAUTION: A high voltage potential exists across the two “+” speaker terminals when operating in
any Bridge Mode application!

To 140V speaker load

Figure 11

OWNER'S MANUAL

Note Jumper

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

13

CP400 & CP700 COMMERCIAL

THRU

IN

PROTECT

LIMIT

SIGNAL

CH-1

PROTECT

LIMIT

SIGNAL

CH-2

CP700

Commercial Power Amplifier

CH-1 CH-1

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

+

CH-2 CH-2

- 100V +

-+

70V

-+

25V

8, 4, and 2 Ohms

AUDIO TRANSFORMER

DIR. OUTPUT ISOL. OUTPUT

-+70 1000

BRIDGE

MONO

-

POWER AMPLIFIER

OWNER'S MANUAL

To 200V speaker load

Note Jumper

Figure 12

Specifications are subject to change without notice

AtlasSound.com

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

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

14

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

SPECIFICATIONS

DIRECT POWER OUT PROTECTION CIRCUITS

Max Average Power @ 35 Hz-20 kHz
with 0.1% THD (10-80K Filter)

CP400

8 Ω, 1 kHz, 0.1% THD 160 W X 2
4 Ω, 1 kHz, 0.1% THD 240 W X 2
2 Ω, 1 kHz, 0.1% THD 270 W X 2

Bridged Mono 8 Ω 500 W
1 kHz, 1% THD
Bridged Mono 4 Ω 600 W
1 kHz, 1% THD

TRANSFORMER OUTPUTS CONTROLS

25V 175 W
70V 200 W
100V 200 W
140V Bridged 400 W
200V Bridged 400 W

FREQUENCY RESPONSE COOLING

Direct Outputs (±3 dB) 30 Hz-50 kHz
Transformer Outputs (±3 dB) 30 Hz-16 kHz

THD+N INDICATORS

8 Ω, 1 kHz, 240 W per channel <.05% Power, Protect, Signal, Limit

SENSITIVITY DIMENSIONS

Rated Output into 8 Ω 1.25V 5.19" X 18.9" X 16.85" (132 mm X 480 mm X 428 mm)

VOLTAGE GAIN NET WEIGHT

32 dB

INPUT IMPEDANCE SHIPPING WEIGHT

Balanced/Unbalanced 20 k/10 k Ω CP400

DAMPING FACTOR

8 Ω Output, 10 V rms >200 dB

S/N RATIO

8 Ω per Channel @240 W >100 dB

CP700

240 W X 2
400 W X 2
550 W X 2

850 W

1100 W

280 W X 2
350 W X 2
350 W X 2
700 W
700 W

Output Offset Voltage Protection
Heat Sink Overheat Protection
Transformer Overheat Protection
Load Shorting Protection
Power On/Off Protection
Soft Clip Limiters

Power Switch, Ch 1/Ch 2 gain (41 step)
Parallel/Stereo/Bridge Switch

Dual Speed Fan, Temperature Controlled

CP400

44.5 lbs (20.2 kg)

47 lbs (23 kg)

CP700

54 lbs (24.3 kg)

CP700

57 lbs (26 kg)

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

15

CP400 & CP700 COMMERCIAL
POWER AMPLIFIER

OWNER'S MANUAL

Limited Warranty

All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or

commercial purchaser to be free from defects in material and workmanship and to be in compliance with

our published specications, if any. This warranty shall extend from the date of purchase for a period

of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS SOUND brand

products except as follows: one year on electronics and control systems; one year on replacement parts;

and one year on Musician Series stands and related accessories. Additionally, fuses and lamps carry no

warranty. Atlas Sound will solely at its discretion, replace at no charge or repair free of charge defective

parts or products when the product has been applied and used in accordance with our published operation

and installation instructions. We will not be responsible for defects caused by improper storage, misuse

(including failure to provide reasonable and necessary maintenance), accident, abnormal atmospheres,

water immersion, lightning discharge, or malfunctions when products have been modied or operated in

excess of rated power, altered, serviced or installed in other than a workman like manner. The original

sales invoice should be retained as evidence of purchase under the terms of this warranty. All warranty

returns must comply with our returns policy set forth below. When products returned to Atlas Sound do

not qualify for repair or replacement under our warranty, repairs may be performed at prevailing costs for

material and labor unless there is included with the returned product(s) a written request for an estimate of

repair costs before any nonwarranty work is performed. In the event of replacement or upon completion of

repairs, return shipment will be made with the transportation charges collect.

EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF

CONSEQUENTIAL DAMAGES FOR PERSONAL INJURY, ATLAS SOUND SHALL NOT BE LIABLE IN

TORT OR CONTRACT FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTAL LOSS OR DAMAGE

ARISING OUT OF THE INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE

WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Atlas Sound does not assume, or does it authorize any other person to assume or extend on its behalf,

any other warranty, obligation, or liability. This warranty gives you specic legal rights and you may have

other rights which vary from state to state.

Specifications are subject to change without notice

AtlasSound.com

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

©2008 ATLAS SOUND LP Printed in U.S.A. ATS002102 RevD 2/08 PP

16