DPA Series — DPA80/DPA100 Operating Instructions Page 13taxAbout Your Amplifier: Dynamic Amplifier Performance MeasurementsThe DPA Series amplifiers are the very latest examples of a ‘dynamic amplifier’. This new‘breed’ of power amplifiers provide very high peak power levels in a much smaller, andlighter, package than previously possible with conventional amplifiers.They are designed specifically for today’s high power audio installations, which use multiplespeakers with electronic crossovers or speaker controllers. These systems can handle veryhigh transient signals that far exceed their RMS power rating. The DPASeries amplifiers havebeen designed to match this requirement and can deliver huge levels of power for shortdurations.In order to protect themselves and the loudspeakers that they are driving, continuous signalssuch as sine waves, are automatically detected and reduced (ramped down) to a safe level.When trying to measure the power output however, continuous signals will give totallyincorrect results. A dynamic signal, such as a tone burst, should be used and the levelsmeasured by monitoring the waveform on an oscilloscope. The power envelope can then beaccurately measured.Our power output figures are measured using signals with known Crest Factors and arequoted at the rear of this manual on page 63 and on our website.
