After a week running all around the clock at 200W into 4Ohm here are the final measurements for the Trinity Super Amp:
Some basic facts, the power bandwidth at 30Vpp (that is the maximum level I can generate with my network analyser)is roughly 700kHz and does not change between 8Ohms or 2Ohms! The small signal bandwidth of the current gain output stage is 8MHz with a flat frequency response with no gain peaking. That results in an excellent rise time of 850ns for a 40Vpp signal at 10A peak current, which has no overshoots or ringing, means the amp has a perfect impulse response.
Beside these parameters you can see the harmonic and intermodulation distortions are in the range of 0.0001…0.0004% at the rated output power, but I guess that is, what you have expected from a TRINITY product. On the graph “Frequency response vs. Load” you can see that the output impedance cannot be measured, since it is too low. The simulation has shown values of 150nOhm at 20Hz, 10uOhm at 1kHz and 215µOhms at 20kHz. That mean the damping ratio is at 1kHz related to a 4ohm speaker 4Ohm/10µOhm=400.000!!!!
