Basic NPN/PNP Amplifier test circuit not behaving as expected in multisim can anyone please tell me

A basic NPN/PNP complementary push-pull amplifier test circuit using BC547 and BC557 transistors was simulated in Multisim but did not behave as expected with a ±20mV input sweep from a function generator. The PNP transistor was initially connected incorrectly, with the emitter and collector reversed. The circuit lacked proper biasing, causing transistors not to conduct until the input exceeded approximately 0.6V, resulting in expected crossover distortion at low input levels. Simulations showed that with low input voltages (below about 1.2V peak-to-peak), crossover distortion is evident, while higher input levels produce less distortion but reduced output swing due to V_BE drops. Adding a load resistor (e.g., 10kΩ) from the emitters to ground was suggested to improve simulation accuracy. Some users noted that Multisim simulations sometimes do not show expected crossover distortion, possibly due to simulation interpolation or lack of load, while LTSpice simulations confirmed distortion at low drive levels. The discussion highlighted the importance of correct transistor orientation, biasing, and load conditions in push-pull amplifier simulations and the limitations of SPICE-based simulators in accurately modeling crossover distortion without proper setup.
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