Vdc Input; Technical Specifications - Entero ESA-8250 Guía De Seguridad E Instalación

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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

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

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

Maximum wire thickness of the DC input connector: 16mm

power amplifier

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.

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