Cloud CA8125 Manual de instalación y uso - Página 15
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Outputs
The speaker output connector for each amplifier channel
is a 2-pin, 5 mm-pitch screw-terminal type
connectors are suitable for cable cores up to 2.5 mm
Connect as shown below:
-
+
Never make connections to the output terminals
while the amplifier is powered.
The output stages of CA Series amplifiers can be configured to
drive either high impedance loudspeaker distribution systems
(70 V-line or 100 V-line), or low impedance loudspeakers (4 ohms
or greater). The selection of output mode is made independently
for each amplifier channel with the rear panel SPEAKER LOAD
HIGH Z/LOW Z DIP switch
CA6160 and CA8125, this is a dedicated 2-, 4-, 6- or 8-pole
switch: on Model CA2250, output mode selection is made using
poles SW7 and SW8 of the single 8-pole DIP switch. (The first
example shown below is for the 4-channel CA4250; the principle
is identical across the range.)
SPEAKER LOAD
70 V-line or
100 V-line
operation
ON
CH2 Hi-Z/Lo-Z
CH1 Hi-Z/Lo-Z
Ω
Ω
CH2 4
/70V or 8
/100V
Ω
Ω
CH1 4
/70V or 8
/100V
CH2 INPUT ROUTING
APD ON/OFF
CH2 65Hz HPF
CH1 65Hz HPF
70 V-line or
100 V-line
operation
1
2
ON
The output mode may be set independently for each channel.
Set the switch UP for high impedance
operation and DOWN for low impedance operation.
IMPORTANT: CA Series amplifier channels normally
operate in a bridge configuration in both low and high-
impedance modes: pairs of channels cannot be bridged
externally to obtain a higher power output.
. The plug-in
4
2
.
TO SPEAKERS -
LO-Z: 4 OR 8 OHMS
HIGH-Z: 70/100 V-LINE
. On Models CA2500, CA4250,
6
HIGH Z
4 ohm or
8 ohm
operation
1
2
3
4
LO Z
(CA4250)
4 ohm or
8 ohm
operation
3
4
5
6
7
8
(CA2250)
(70/100 V-line)
70/100 V-line operation
In high impedance mode, CA Series amplifiers can drive
either 100 V-line or 70 V-line loudspeaker distribution
systems directly. The system voltage is set by the rear
panel SPEAKER LOAD 4Ω/70V / 8Ω/100V DIP switch
On Models CA2500, CA4250, CA6160 and CA8125, this is
a dedicated 2-, 4-, 6- or 8-pole switch: on Model CA2250,
output mode selection is made using poles SW5 and SW6 of
the single 8-pole DIP switch. (The first example shown below
is for the 4-channel CA4250; the principle is identical across
the range.)
4Ω / 70V
70 V-line
operation
1
ON
8Ω / 100V
(CA4250)
CH2 Hi-Z/Lo-Z
CH1 Hi-Z/Lo-Z
CH2 4Ω /70V or 8Ω /100V
CH1 4Ω /70V or 8Ω /100V
CH2 INPUT ROUTING
APD ON/OFF
CH2 65Hz HPF
CH1 65Hz HPF
70 V-line
operation
1
2
ON
(CA2250)
The voltage may be set independently for each channel. Set
the switch UP for 70 V line operation and DOWN for 100 V
line operation.
In high impedance (70/100 V-line) mode, the transformerless
output stage of each amplifier channel is designed to deliver
a maximum of 500 W, as long as the other channels in the
same odd- or even-numbered group (i.e., using the same
internal power supply) are unloaded. When using multiple
channels of a CA2500, CA4250, CA6160 or CA8125 amplifier,
installers should ensure that the total loading on the odd-
numbered channels does not exceed 500 W, and the total
loading on the even-numbered channels, does not exceed
500 W. Model CA2250 uses a single power supply, and the
total loading of both channels combined must not exceed
500 W.
The wattage loading for each channel, can be calculated by
adding together the tap wattage settings for all speakers
connected to that channel.
C l e a r l y b e t t e r s o u n d
100 V-line
operation
2
3
4
100 V-line
operation
3
4
5
6
7
8
CA Series Installation & User Guide v1.0
.
7
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