Maximum Power Maximum power depends on the power supply voltage and speaker impedance. With an 8 ohm load (RL 8 ohm) and a supply of VS ±40 V, the design performance follows these conditions. System Architecture NE5534 PreAmplifier 0P07 DC Servo C1237 Speaker Protection TDA7293 PostAmplifier. This configuration offers a thoughtful structure, sound quality, and stable, reliable operation. DC Servo Power Stereo DC Servo for offset control, power capability, and stereo operation. Load and Transformer Guidance If driving a 4 ohm load, the transformer voltage should not exceed dual AC 20 V to avoid unnecessary losses. Use Scenarios Scenario 1: Build a compact home stereo system with 8 ohm bookshelf speakers to achieve clear audio with speaker protection and reliable performance. Scenario 2: DIY audio project for enthusiasts seeking a stereo amplifier module with integrated protection and DCServo control. Scenario 3: Small office or classroom background music system requiring stable, protected playback and quality sound.