Commercial Power Amplifier
Bridge mono Configuration (Direct Coupled)
If higher power levels are required, the Atlas amplifier can be used in Bridge Mono mode, which
utilizes both channels of the amp across the speaker load.
CH-1
AUDIO TRANSFORMER
8, 4, and 2 Ohms
With the amplifier turned OFF, move the rear mounted selector switch to the "Bridge" position and
+
-
0
70
100
I S O L . O U T P U T
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).
-
+
-
+
+
70V
25V
BRIDGE
MONO
- 100V +
CAuTION: A high voltage potential exists across the two "+" speaker terminals when operating in
CH-2
8, 4, and 2 Ohms
AUDIO TRANSFORMER
+
-
0
70
100
any Bridge mode application!
I S O L . O U T P U T
-
+
-
+
-
70V
25V
BRIDGE
MONO
- 100V +
MADE IN CHINA
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
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
amplifier.
AtlasSound.com
CP400 & CP700
CH-1
8, 4, and 2 Ohms
CP700
D I R . O U T P U T
Commercial
Power
Amplifier
Per Channel
Output Power
400 W / 4 Ohms
BRIDGE
350 W / 70.7 V
MONO
CH-2
8, 4, and 2 Ohms
D I R . O U T P U T
AC100V-50/60Hz
AC120V-50/60Hz
AC230V-50/60Hz
AC240V-50/60Hz
BRIDGE
MONO
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
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Specifications are subject to change without notice.
IN
THRU
AUDIO TRANSFORMER
GND
+
-
0
70
100
-
+
-
+
+
70V
25V
- 100V +
AUDIO TRANSFORMER
+
-
0
70
100
-
+
-
+
-
70V
25V
- 100V +
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
Telephone: 800.876.3333 • Fax: 800.765.3435
– 10 –
Owner's Manual
AMPLIFIER INPUTS
CH-2
CH-1
+
-
GND
-
+
CH-1
LEVEL
I S O L . O U T P U T
PARALLEL
1601 Jack McKay Blvd., Ennis, TX 75119
(800) 876-3333 AtlasSound.com
CH-2
I S O L . O U T P U T
Switch set
to "Bridge"
Figure 7
MADE IN CHINA
IN
THRU
LEVEL
STEREO
BRIDGE
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