User Manual

Owner’s Manual
CP400 & CP700
Commercial Power Amplifier
AtlasSound.com – 4 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
FRONT PANEL DESCRIPTION
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 - When power is 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 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.
++--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 SERV ICEABLE P A R T 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
P A 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
M A D E I N C H I N A
2
3
4
1