"Also, because an amp uses GaN doesn’t necessarily make it better."
Hello toetapaudio,
I mostly agree with georgehifi on this one. The critical factor is eliminating or significantly reducing dead time which reduces distortion.
The use of GaN FETs, rather than silicon MOSFETs, is one method of doing this that seems like the method most companies are utilizing.
The only exception I'm aware of is Ralph at Atma-Sphere that is developing their own version of a high quality class D amp. Ralph has announced that they developed their own circuitry that eliminates dead time whether utilizing MOSFETs or GaN FETs. They have a patent application pending on this circuitry.
However, I believe Ralph stated that using GaN FETs along with his new circuitry would likely just further enhance his amp's sq performance.
Either way, dead time is going to be dead as disco.
Tim
Hello toetapaudio,
I mostly agree with georgehifi on this one. The critical factor is eliminating or significantly reducing dead time which reduces distortion.
The use of GaN FETs, rather than silicon MOSFETs, is one method of doing this that seems like the method most companies are utilizing.
The only exception I'm aware of is Ralph at Atma-Sphere that is developing their own version of a high quality class D amp. Ralph has announced that they developed their own circuitry that eliminates dead time whether utilizing MOSFETs or GaN FETs. They have a patent application pending on this circuitry.
However, I believe Ralph stated that using GaN FETs along with his new circuitry would likely just further enhance his amp's sq performance.
Either way, dead time is going to be dead as disco.
Tim