cadaudio.dk

D250A PWM Amplifier  

D250A specs

Rated power 4 ohms

250W

Power supply max.

2 x 45V DC 

Aux. supply

16V DC

Freq. Range  (+0, -1dB)

20 – 20.000 Hz

THD + N

0.02% typ.

110dB typ.     

Max. output current

20A

Min. load impedance

4 ohms

400 typ.     

Input voltage

1V - 10 k - balanced

Operation

Half bridge amplifier

Plugin/expansion header

yes

Peak limiter

yes

Dimensions

100 x 80 x 25mm

Heatsink

external (small)

Available as sample

yes

Available as OEM design

yes

D250A is a PWM /Class-D amplifier designed to give very high performance in audio quality and to deal with all aspects of amplifier use and applications including amplifier + power supply combination, multichannel use , active crossover use, etc. 

Power output is 250 W into 4 ohms, overcurrent protection is likely to operate with continuous high power levels into 2 ohms.

D250A is a full bandwidth module (20 kHz power bw) and can be used for a broad range of applica-tions from HIFI, Home Cinema to Pro Audio, Active Speakers, Installation...

Sound quality is very good indeed and THD + N is 0.02% or better.

The D250A can be powered from a linear supply ,  a switch-mode supply , a D250ASW or a D1000ASW module.

D250A has these connections:

* Balanced input header (3-pin molex)

* Expansion header (8-pin molex) with input/output + power for external signal processing,crossover, eq,…

* Front panel header (7-pin molex) with volume control in/out + output to led meter and power for this.

* Channel-2 link (6-pin molex) with clock and audio connection to additional channel module.

* Mode selector (2x6 pin molex)  selects fullrange, high or low for both main module and ch-2.

* Power input (4-pin connector) 2 x 45VDC + 15VDC

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