What's wrong with Behringer? I use a pair👍 good for you
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- 420 posts total
A class D amp can do 2 ohms if the intention is there on the account of the designer. Several things have to be present to really make this so. * the amplifier must have sufficient current handling ability in the output transistors and power supply * the amplifier must have sufficient heatsinks as they will run hotter driving 2 ohms * because of the output filter considerations, the amp should be self-oscillating. In this way it is possible to run enough feedback to allow it to correct for phase shift otherwise imposed by the filter. |
Thank you, atmosphere, for your numerous interesting and very informative posts. Class D Hypex and UcD power module designer, Bruno Putzeys, has stated that there's no such thing as too much feedback and that he's able to make a class D amp sound however he likes but decided his goal would be accuracy. Here are a couple interviews with Bruno Putzey about class D I thought members on this thread might find interesting, relevant and informative: https://www.soundstageultra.com/index.php/features-menu/general-interest-interviews-menu/455-searchi... https://www.soundandvision.com/content/bruno-putzeys-head-class-d Tim |
Bel Canto e1X, stable into 2 ohms. See recent Stereophile review. https://belcantodesign.com/pdfs/e1X%20one%20sheet%202019.pdf You're welcome, George. |
@noble100 Yes, Bruno has been able to design class D amps with loop gain north of 75dB!! He did acknowledge to us that there was a typo in one of his papers when we pointed out a math error regarding the oscillation criteria. It was not an error in the paper itself though, it really was a genuine typo. Brilliant guy. |
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