6 ms·

I wonder why these haven’t become more well known among Audio folks, more power at higher efficiency is a good thing, if it comes with suitably appropriate low

I wonder why these haven’t become more well known among Audio folks, more power at higher efficiency is a good thing, if it comes with suitably appropriate low levels of undesirable distortion

dsr_ 4y ago
Almost all of the top-rated audio amplifiers use class-D switching already; the class G and H changes are only needed in battery-driven devices. E.g.: https://www.audiosciencereview.com/forum/index.php?threads/topping-la90-review-integrated-amplifier.33374/ https://www.audiosciencereview.com/forum/index.php?threads/t...
- jeffbee 4y ago
  A lot of the stuff at the high end of the chart is using not only the same architecture, but the same modules from the same supplier. Interesting that the class-AB amp that has been at the top of their ratings for years has finally been beaten by a switching amp.
  - JohnBooty 4y ago
    Is the Benchmark AHB2 (the previous champ) really class AB? I think it's more like a switching (class D) amp. Those AHB2's are tiny and run cool while putting out a few hundred watts of power - I think that rules out class AB.
    - jeffbee 4y ago
      They’re small and cool because they have the “class-h” active rail system described in this app note. Someone else said that’s only for battery-powered mobile devices but that’s not true.
- aidenn0 4y ago
  I thought it was the opposite; class-D is more likely in battery powered because it is higher efficiency than G or H, and G or H are used in high powered amplifiers that have an AB output stage but are thermally limited?