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Ch.1
Ch.2
125 W/50 V
125W/50 V
200 W/50 V
0
300 W/8 Ω
300 W/8 Ω
Ch.1
Ch.2
250 W/50 V 250 W/50 V 250 W/50 V 250 W/50 V ≤ 1000 W
500 W/100 V (bridged)
250 W/50 V 250 W/50 V ≤ 1000 W
250 W/4 Ω
150 W/50 V
8.8 Amplifier Standby Input & Link
8.9 Amplifier Error output contacts
ESA 8125 examples:
NOTE: make sure that the total connected load at 50 V/100 V and total power for low impedance
loads never exceed the total of 1000 W and that the maximum power capability for a single
channel is not exceeded.
Ch.3
Ch.4
125W/50 V
125W/50 V
100 W/50 V
100 W/4 Ω
100 W/50 V
100 W/50 V
ESA 8250 examples:
NOTE: make sure that the total connected load at 50 V/100 V and total power for low impedance
loads never exceed the total of 1000 W for channel 1, 2, 7 & 8 and 1000 W for channel 3, 4, 5 & 6,
and that the maximum power capability for a single channel is not exceeded.
Ch.7
Ch.8
Total
power
600 W/16 Ω (bridged)
≤ 1000 W
Peak output power: The maximum Peak power the ESA 8125 can deliver is 1600 Watt Peak for all
8 channels in total and the ESA 8250 can deliver 1600 Watt Peak in total for channels 1, 2, 7 & 8
and another 1600 Watt Peak for channels 3, 4, 5 & 6. See chapter 9 for more details on maximum
power ratings per channel.
The amplifier standby input is located at the rear of the amplifier. When activated (for example
using a relay contact closure), the internal power supplies will switch into their energy saving
standby mode, but ONLY when the 230 Vac is disconnected or interrupted due to a failure.
In standby mode the current draw of the amplifier is reduced to a minimum. See chapter 9
'Technical Specifications' for the current draw in standby mode. Remove the input contact
closure to return to normal operating mode; it will take less than 2 seconds to return to the
operating mode. The standby mode output contact can be used to link to the standby mode
input of second amplifier, from the 2nd to the 3rd and so on.
230 Vac error contact:
This error output contact (NO) (see chapter 'Rear panel connection and controls') is activated
when the AC power supply is switched to the DC power supply. When this contact is connected
to the Entero
ESC emergency system controller in a Voice Alarm System, it will be used by the
®
Emergency System Controller to indicate that current is drawn from the connected batteries.
Fault relay contact:
This error output contact (NO) (see chapter 'Rear panel connection and controls') is activated when
one of the following failures/errors has occurred:
• A failure in the power supply due to overcurrent, overvoltage, undervoltage, load short circuit
and high temperature (overheated)
• A failure in the amplifier stages due to overcurrent, overvoltage, undervoltage, load short
circuit, short to earth (LSP terminals) and high temperature (overheated)
Ch.5
Ch.6
250 W/100 V(bridged)
500 W/100 V (bridged)
50 W/50 V
50 W/50 V
Ch.3
Ch.4
250 W/50 V 250 W/50 V 250 W/50 V 250 W/50 V ≤ 1000 W
200 W/4 Ω 200 W/4 Ω 300 W/8 Ω 300 W/8 Ω ≤ 1000 W
600 W/16 Ω (bridged)
8. Configuration
Ch.7
Ch.8
250 W/100 V (bridged)
50 W/50 V
50 W/50 V
100 W/50 V
0
Ch.5
Ch.6
400 W/100 V (bridged)
Total power
≤ 1000 W
≤ 1000 W
≤ 1000 W
Total
power
≤ 1000 W
11
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