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9. Technical Specifications
8.10 48 Vdc input
9. Technical Specifications
Entero
Output power* per channel in Watt RMS**, into:
50 V loads (THD < 0.5%)
Bridged mode at 100 V (THD < 0.5%)
Bridged mode at 8 Ω (THD < 0.5%)
Maximum RMS power at 4 Ω & 8 Ω (limits remaining power for other channels)
Total RMS power available (ESA 8125: all Ch. / ESA 8250: Ch.1/2/7/8 & Ch.3/4/5/6)
Output power* per channel in Watt Peak**, into:
Maximum Peak power at 4 Ω & 8 Ω (limits remaining power for other channels)
Total Peak power available (ESA 8125: all Ch. / ESA 8250: Ch.1/2/7/8 & Ch.3/4/5/6)
Minimum load impedance
Maximum load capacitance
THD at 1 kHz - rated power (/with TraPack)
THD at 1 kHz – 1 W (& with TraPack)
Frequency response (0, -3 dB):
at rated power, using TraPack
at rated power in combination with Entero
at rated power in combination with Entero
Channel separation (at 1 kHz)
Noise (A-weighted) @ 230 Vac/48 Vdc
Noise (A-weighted) @ 230 Vac/48 Vdc, in combination with Entero
Input sensitivity for maximum output at 8 Ω and higher (/4 Ω)
Input gain control range
12
The 48 Vdc input can be used for emergency power backup sources such as batteries. When the
230 Vac mains power source is disconnected or fails the internal power supply automatically
switches over to the 48 Vdc input. When operating from a 48 Vdc power source the amplifiers
rated output power specifications will not be affected, until the battery voltage starts to reduce
below its minimum voltage.
When used in a Voice Alarm system, the wiring from the battery charger to this input should at
least be 4mm
(max. 2m long) for the ESA 8125 and 8mm
2
Maximum wire thickness of the DC input connector: 16mm
power amplifier
®
4 Ω & 8 Ω (THD < 0.5%)
4 Ω & 8 Ω (THD < 0.5%)
at rated power
ESC (/TraPack)
®
ESC & Microphone (/TraPack)
®
Damping factor
Input impedance
*NOTE: Output Power is measured with all channels driven at a 230 Vac (-15%/+10%) mains supply
and at a 48 Vdc (-15%/+10%) battery power supply. When the AC or DC power supply drop below the
specified voltages (<195.5 Vac & <40.8 Vdc) , the amplifier will not deliver the rated power anymore
and may enter protection mode. Make sure the AC and DC power supply input never exceed their
maximum voltage ratings (> 253 Vac & >52.8 Vdc) to avoid failures or damages to the amplifier.
**NOTE: The RMS output power ratings are measured using a sine wave signal. All Peak output
power ratings are measured using a burst signal (1:2). NEVER use a sine wave signal to measure
a low impedance load: excessive high current will flow, which may result in a damaged amplifier.
This may only be performed by authorized people.
(max. 2m long) for the ESA 8250.
2
2
ESA 8125
125 (@ 20 Ω)
125
250 (@ 40 Ω)
250
250/300
1000W
200W/200W
625W/325W
1600W
4 Ω/8 Ω bridged
150nF
<0.5% (/<1%)
<0.2% (/<0.5%)
20 Hz-20 kHz
20 Hz-15 kHz
20 Hz-18 kHz(/15 kHz)
60 Hz-18 kHz(/15 kHz)
>65 dB
>95 dB/>85 dB
ESC
>75 dB/>70 dB
®
>100
6.7 dBu (/ 3.7 dBu)
-infinite to +6 dB
5K Ω
ESA 8250
250 (@ 10 Ω)
250
500 (@ 20 Ω)
500
250/300
1000W + 1000 W
400W/325W
625W/325W
1600W + 1600 W
4 Ω/8 Ω bridged
150nF
<0.5% (/<1%)
<0.2% (/<0.5%)
20 Hz-20 kHz
20 Hz-15 kHz
20 Hz-18 kHz(/15 kHz)
60 Hz-18 kHz(/15 kHz)
>65 dB
>95 dB/>85 dB
>75 dB/>70 dB
>100
6.7 dBu (/ 3.7 dBu)
-infinite to +6 dB
5K Ω
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