Audio Asylum Thread Printer

Get a view of an entire thread on one page

FAQ / News / Events

Amp/Preamp Asylum

RE: But GaN is all the rage. No? Not yet?

72.211.237.239

13th Duke of Wymbourne

In Reply to: RE: But GaN is all the rage. No? Not yet? posted by AbeCollins on November 26, 2024 at 20:04:32

According to Bruno Putzeys, Gan FETs can improve performance a bit but not fundamentally. In the linked article is a link to a piece by ICEPower who have studied the difference and don't think it worth making the switch. In a pocast, Michal Jurewicz of Mytek, claimed that Gan FETs cost 10x the MOSFETs they replace. My take is that companies promoting gan FET class-D amps to audiophiles are using it as a marketing hook or they don't really understand the cost-benefit trade off in using them.
https://hometheaterhifi.com/30th-anniversary/life-on-the-edg (Open in New Window)

Edits: 11/28/24

Follow Ups:

Excellent article. I read it all. Thanks! - AbeCollins 12:57:09 11/29/24 (1)
It was fun reading about some of the legacy audiophile myths including the effects of negative feedback and then diving into Class D and GaN. Thanks!
- RE: Excellent article. I read it all. Thanks! - 13th Duke of Wymbourne 17:03:19 11/30/24 (0)
  In YT video Putzeys was asked what has been the biggest step forward in class-D design and he replied 'math' i.e. how to apply more feedback and include the output inductor inside the loop.

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors:

Atma-Sphere Music Systems, Inc.