Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other???
Looks like GaN is starting to take off. Not only Texas Instruments (Burr Brown) who are into the manufacturer of GaN transistor technology, but it seems Analog devices now also. GaN is already being developed into Class-D audio by a few amp manufacturers now, with great feedback on it's sound, compared to the older technology. Analog Devices getting into the manufacture of the GaN technology also https://www.analog.com/en/applications/technology/gan.html Cheers George |
GaN-FET manufacturers will be important to the implementation of the GaN tech in Class D audio amplifiers. And yes, wide spread availability of the GaN-FET’s will be needed to drive costs down. But GaN-FET modules designed for Microwave and RF applications will not benefit HEA class D applications. Just saying... |
And yes, wide spread availability of the GaN-FET’s will be needed to drive costs down.Yes correct, as I said. (I’m hearing an echo??) But GaN-FET modules designed for Microwave and RF applications will not benefit HEA class D applications. Just saying...But it means they have the rights and can do in the future hopefully ones for audio as well. Just saying!! (again that blasted echo) https://emojipedia-us.s3.dualstack.us-west-1.amazonaws.com/thumbs/120/emojione/151/dizzy-face_1f635.... Cheers George |
The EPC eGaN FETs switch 10x faster than silicon MOSFETs and have zero stored charge. I'm guessing that probably improves sound quality when used in a class D amp. . Elegant Audio Solutions in Austin, Texas, created a class D amplifier (200 w at 8 ohms and 400 w at 4 ohms) using the EPC eGaN FETs with THD+N as low as 0.0005% and very low feedback. Moreover, this is done without the need for a heat sink and eGaN-based amplifier can plug directly into the standard amplifier implementation of many existing systems. I'm very interested in auditioning this amp in my system. Here's a link to the amp photo: https://www.planetanalog.com/author.asp?section_id=3065&doc_id=564363&image_number=4 Anyone want to volunteer to make me a pair of mono blocks using a couple of these amps placed in nice aluminum chassis with XLR inputs, IEC jack and rocker ON/OFF switch on the back and a single blue power status LED on the front? Thanx, Tim |
Here is the PDF to the eGaNAMP2016 GaN amp. Steve Colino said if one wants even better sound from it, you can add a heatsink to those GaN fets and take the switching frequency up to 1.536mhz. https://epc-co.com/epc/Portals/0/epc/documents/thirdparty/eGaNAMP2016_Consumer-123115.pdf Cheers George |
