High end Class D amps?
You have no idea and do nothing but put **** on anything that's not "pro" Class-D. It still has problems sunshine, compared to the better linear amplifiers I and many other still say so. You are nothing but a Class-D flag waver, that I believe probably has an commercial interest either now, soon or in the future with it. |
At the price points, or close, the best of Class-D is every bit competitive to the best of the other classes. Calling me a Class-D flag waver is funny. I am doing nothing but pointing out your ignorance on a topic you are very passionate about, but know little about. At the level of performance of good Class-D (which does not need to be very expensive), you really are just talking about preferred flavor. You continued posting of old, and wrong information seems to know no bounds. When you have to use ignorance or perhaps lies to make an argument, that tells a lot. Why do you do it? The one who have proved repeatedly they have no idea is you. Quick search shows you have been on this wrong-headed EPDR crusade for what, 2+ years, and still you don't understand it. Ditto your class-D crusade with repeated postings of large phase-shift from an older technology Class-D amp. Ditto your insistence that Class-D must have phase-shift if the switching frequency is not MHz plus. Ditto your insistence that feedback must be bad (even though that is from a different architecture with different constraints). Ditto your insistence that doubling with reduction in ohms is essential to good sounds, without any consideration to what that means and why it normally does not matter, even with a low impedance load. Maybe you can't teach an old dog new tricks. |
I will throw and old dog a bone ... namely I will throw you a bone George. Explain, in detail please, exactly how EPDR impacts the ability of Class-D amplifiers to drive a load. That is it, that is all you need to do. I am 100% certain you can't do it correctly, but here I am, have the floor, grab the bone, and show everyone you are the expert. Tell us exactly how EPDR impacts a Class-D amplifiers ability to drive a load. |
I haven't heard much discussion on this thread thus far about the newer Bruno Putzeys designed Purifi Eigentakt class D modules that outperform his previously designed Hypex NCore NC-1200 modules, both in measured performance and subjective listening, according to this 6moons review linked to below: https://6moons.com/audioreview_articles/purifi/ I think these modules are available to the DIY amp building community that previously often utilized the Hypex NC-400 modules, companies that configure or assembled these newer modules in modest custom cases for sale at reasonable prices just like they formerly did with the Hypex NC-400 modules and regular established OEM audio amp companies that previously used the Hypex NC-500 and NC-1200 modules in higher quality custom cases for sale at higher, typically $10,000/pair plus prices. In the 6moons review, Bruno Putzeys stated many of the established amp manufacturers like Rowland and others plan on using the Purifi modules in new upcoming top of the line models and continue to use the Hypex NC-500 and NC-1200 modules in current amp models, that will be then positioned as their 2nd and 3rd tier models. I also haven't heard much discussion on this thread thus far about the newer Orchard Audio BOSC, now renamed the Starkrimson. These class D modules/amps are interesting because they are offered for sale at only $1,500/pair, they're offered as either just modules for the DIY community or in very small and modest monoblock cases just like a normal finished audio component product, they measure extremely well and they utilize the newer, very fast switching, GaN output transistors. I believe Orchard Audio designs and builds their own proprietary class D modules and that these $1,500/pair monoblocks are currently the least expensive available class D amps utilizing GaN transistors. Here's a link to a recent class D article on the Audio Express website that's titled "Fresh From the Bench: A Tale of Two Class-D Amplifiers Orchard Audio BOSC and Purifi Audio Eigentakt EVAL1": https://audioxpress.com/article/fresh-from-the-bench-a-tale-of-two-class-d-amplifiers-orchard-audio-... It's important to note that both of these modules are a further advancement of the currently available solid state and analog class D power modules technology that accept only analog signal inputs and have regular high-level speaker outputs . These need to be distinguished from the newer technology of digital class D amp modules that will accept only digital signal inputs and have high-level speaker outputs, which are typically referred to as 'power dacs'. These power dacs are likely to become more prevalent in the near future, possibly in new, non-traditional 'integrated' combinations of functions in a single chassis or even digital interconnects to speakers powered by one or more power dacs. Class D continues to improve at a relatively rapid pace and new paradigm shifts are not only possible, I think they're probable. |
