Toroidal Transformer
Advantages
- High efficiency: Short magnetic circuit, minimal copper and iron losses, high efficiency
- Small size and light weight: Under the same power, the volume and weight of the toroidal transformer are significantly smaller than those of the EI transformer
- Low magnetic leakage: minimal interference to the circuit, high signal-to-noise ratio, suitable for high fidelity power amplifiers
- Low noise: Short magnetic circuit, reduces vibration caused by magnetostriction, low noise
Disadvantages
- High production cost: The winding process is complex and the cost is high
- Poor anti DC saturation performance: prone to saturation under DC conditions
EI Transformer
Advantages
- Easy to process and produce: convenient winding, low cost
- Good anti saturation performance: not easily saturated under DC conditions
- Unique sound quality: The sound is thick and rich, suitable for certain specific sound effects
Disadvantages
- Large magnetic leakage: resulting in lower efficiency, larger volume and weight
- Low conversion efficiency: Compared to toroidal transformers, the conversion efficiency is lower