I have not seen any reviews lately of Creek components, so I visited their website. They are a British company known for their very good, affordable integrated amps. Well, they have gone more upscale and have a new integrated amp for about $8000. But, what struck me was that the amp section was class G.
I know a few other companies use class G such as Arcam and Parasound (the New Classic amps). I did some research and this is a simplified explanation, but class G amps use class A for low power and then use a secondary power supply when more power is needed like a turbo charger. This is more efficient with less heat generated. And a lighter and smaller case with less heat sinking can be used. So, it has the advantages of combining class D and class AB amps.
For those more technical, I have some questions since class G seems to be an ideal amp technology.
What are disadvantages of using class G?
Why is not used more often?
Does it adversely affect sound quality?