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Don't see the point of this when I can just build a Kevin Gilmore Dynalo or Dynahi. Very low part count, almost BOM golf like; multiple variations by him and ot

Don't see the point of this when I can just build a Kevin Gilmore Dynalo or Dynahi. Very low part count, almost BOM golf like; multiple variations by him and others to cover any case. Closest you will ever get to a wire with gain. Not to slight Hypex (the company behind the Ncore family of Class D chip amps), mind you, they're probably the only chip amp to ever succeed in making low distortion high output high efficiency chip amps (and if it is a class D and doesn't have a Ncore, it probably sucks, unless it's that new THX design family); but it will never outperform a Dynalo/Dynahi built correctly.

djmips 4y ago
aren't the Dnyaxx amps headphone amps?
- DiabloD3 4y ago
  Yes and no. People have built speaker amps out of Dynahis. Due to the small size of the PCBs, it is trivial to do bi/tri-amped designs (with the woofer using a different amp or multiple stacked Dynahis). The Dynahi is, admittedly, a ~25w amp (at least, at near-zero distortion and clipping conditions) when firing into an 8 ohm typical load, which means it isn't a headphone amp either; the Dynamite configuration (balanced Dynahi) doubles this output. Note: the best tweeters ever made have rather strange electrical characteristics, in the same vein that some headphones do. The Dynaxx family tends to handle anything, high or low ohm (even speakers that are 4ohm nominal or headphones that are 1000+ohm), but also ones with ridiculous impedance curves. People have realized that due to its exceptional tolerance of weirdly designed speakers, it makes for a good speaker amp too. 25w is enough to drive these tweeters loud enough, and some mids as well; woofers, no, not with a single board. Kevin Gilmore also has sequels to his Dynaxx family (these being, themselves, improved versions of the KG Dynamic), due to some parts being replaced as they've fallen out of production and are hard to buy now.

djmips 4y ago

aren't the Dnyaxx amps headphone amps?

DiabloD3 4y ago
Yes and no. People have built speaker amps out of Dynahis. Due to the small size of the PCBs, it is trivial to do bi/tri-amped designs (with the woofer using a different amp or multiple stacked Dynahis). The Dynahi is, admittedly, a ~25w amp (at least, at near-zero distortion and clipping conditions) when firing into an 8 ohm typical load, which means it isn't a headphone amp either; the Dynamite configuration (balanced Dynahi) doubles this output. Note: the best tweeters ever made have rather strange electrical characteristics, in the same vein that some headphones do. The Dynaxx family tends to handle anything, high or low ohm (even speakers that are 4ohm nominal or headphones that are 1000+ohm), but also ones with ridiculous impedance curves. People have realized that due to its exceptional tolerance of weirdly designed speakers, it makes for a good speaker amp too. 25w is enough to drive these tweeters loud enough, and some mids as well; woofers, no, not with a single board. Kevin Gilmore also has sequels to his Dynaxx family (these being, themselves, improved versions of the KG Dynamic), due to some parts being replaced as they've fallen out of production and are hard to buy now.