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Digital Power Amplifier

DA2250 2x250W 2 Channels Class D Digital power Amplifier
Two channels in 19” standard rack
70V/100V power output for long distance transfer
Full digital with 2*250W high efficiency...

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Features

Two channels in 19” standard rack

70V/100V power output for long distance transfer

Full digital with 2*250W high efficiency

1 U slim design, space and cost saving

With standby function for power saving


Description

This is a Class D digital amplifier designed for commercial and industrial public address applications. Rack mount design in 1U type and rated power is 2*250W.

Both balanced and unbalanced line inputs are available for each channel. Balanced line output feeds to another power amplifier as well as secures the signal transmission is less noise and longer distance. 70V, 100V speaker outputs are convenient for installation when selection different speaker matching. Complete protection includes clip, short circuit, high temp and overload. With indications for power, signal, clip, protection and temperature.


Specification

Model

DA2250

Channels

2

Rated power/channel

250W

Rated output voltage

70V/100V

Input sensitivity

775mVRMS(0dBV/balanced input);
100VRMS (100V unbalanced input

S/N Ratio

> 80dB

Input impedance

60K ohms (balanced), 20K ohms (priority), 100K ohms (100V unbalanced)

Frequency response

80Hz-15kHz (±3dB)

Total harmonic distortion

<0.3 % (1kHz)

Power Consumption

300W

Power requirement

AC180-260V/50-60Hz DC24V(rated power -3dB)


1. Front Panel

Two Channels

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1. Status indicators

2. Volume controller

3. Power switcher


2. Rear Panel

Two Channels

image007.jpg


1. 220V AC input(with fuse)

2. 24V DC input(maximum core Φ6mm)

3. Fan

4. 70V/100V output

5. 70V/100V switcher

6. Priority 100VRMS unbalanced input

(two poles 3.96 phoenix)

7. Priority balanced AUX input(three poles 3.96 phoenix)

8. Balanced AUX input(three poles 3.96 phoenix)

9. Balanced AUX output(three poles 3.96 phoenix)


3. Connection


TIM截图20180423115805.jpg

3.1 Input connection

image017.jpg


P——Signal(+)

G——Ground

N——Signal(-)

100V——100V output(hot end)

GND——Ground(cold end)


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