GaN (Gallium Nitride) power supply
GaN (Gallium Nitride) is a semiconductor material used in modern switching power supplies. GaN transistors switch faster than silicon, resulting in smaller, cooler, more efficient power bricks with less audible noise - important for TPA3255 amp power supplies.
GaN (Gallium Nitride) is a wide-bandgap semiconductor material that switches on/off much faster than traditional silicon. This lets designers build power supplies that are smaller, cooler, and more efficient – and audibly quieter for hi-fi use.
Benefits for hi-fi
- Smaller form factor – GaN bricks are 30-50% smaller than equivalent silicon
- Cooler operation
- Lower switching noise – important for audio power supplies
- Faster transient response – better for TPA3255 bass dynamics
Where you’ll find it
The AIYIMA 48V 10A GaN PSU is the go-to upgrade for TPA3255 amps like the AIYIMA A80, A20 MONO, or 3e Audio A7. Provides more current headroom than the stock 5A brick.
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