digiamps.com

Product Info

Concept Audio Production Røjlevej 8 5935 Bagenkop
www.cadaudio.dk info@cadaudio.dk Phone/Fax +45 38334048
 

     Digital / PWM Amplifier Modules    

 
We present a comprehensive series of PWM / Class-D Digital amplifiers 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 , channel syncronization , protection circuits , active crossover use, etc. 

They are all full bandwidth modules (20 Hz - 20 kHz+) and are very usefull for a broad range of applications from HIFI, Home Cinema to Pro Audio, Active Loudspeakers, Installation...

Sound quality is very good indeed and THD + N is 0.02% or better.
Signal/Noise ratio is typically 110 dB or better.

The modules are protected against a variety of faulty conditions such as overload, overtemp., undervoltage, short circuit and are suited for a broad variety of applications including active loudspeakers, pro-audio, installations, high-end and high-power stereo and multi-channel audio.

Our basic topology is a precision clock based design with overall feedback after the output filter , giving a very robust design combining very good specs with high audio quality, we present a couple of new modules using self-oscillating technology, a topology that gives a less complex amplifier and again very good specs and very good audio quality.

 
Basic specs and features;
 

D250A – 250W pwm amplifier module

D1000A – 1000W pwm amplifier modul

 

Modulation  analog PWM modulation
Feedback type after the output filter
Clock type precision clock
Output Power up to 2000W into 4 ohms
THD+N typical 0.01%
Signal/Noise +110dB
Freq. response 20Hz – 22kHz (-1 dB)
Min. Load Impedance 4 ohms nominal
Power supply 2x45V or 2x65V for A modules
Power supply 115/230V AC for ASW modules
Efficiency 85% or better for ASW , 92% for A
EMI and EMC very good
Other specs see graphs and datasheets
Features: balanced input(s)
  volume control connection
  channel synchronization 
  preamp supply
  led meter supply 
  soft start (no-thump)
  overcurrent shutdown
  over temp shutdown

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