About the IceEdge 1200 AS1 modules in the PS Audio and the amps I made last year: I measured them at 2 ohms of 1000 watts......200 watts below what it does into 4 ohms......yet Michael Fremer says it drives the Wilson’s very well? I have not read the review yet. OH NO, this cannot be. George will never talk to us again. Michael just destroyed his "class D cannot drive Wilsons" nonsense that he as been spouting for years. He screams.....but it does not double its power into 2 ohms......it cannot possibly drive a Wilson......ha ha ha......So, i guess 1000 watts into 2 ohms is enough after all.
High end Class D amps?
Just an observation and a question. Are there 'high end' Class D amps out there that are just as good as Class A, A/B amps? I realize that's a sensitive question to some and I mean no disrespect---but whenever I see others' hifi systems on social media, all of the amps are A or A/B. There's always Pass, McIntosh, Moon, Luxman, Accuphase, etc. Where are the Class Ds? For folks out there that want more power for less efficient speakers and can't afford the uber expensive Class As, A/Bs, what is there to choose from that's close to those brands? Thanks
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Is there a moderator in the house? Hey moderator, this @georgehifi character pollutes every single Class-D thread with tons of messages making a claim that is totally wrong. This must be the 3rd of 4th thread just since I joined. @georgehifi, I am not going anywhere. Your repeatedly attempts to use EPDR shows you have no idea what it means and how it relates to amplifiers, and I would say contrary to what Atmasphere said, it does not apply at all to Class-D as the FETS in Class-D do not operate in the linear region, hence the phase has no bearing on the thermal loading of a Class-D amplifier. As well, Class-D amplifiers may not double in power intentionally, as they may intentionally current limit. That is not a bad thing and has no impact on sound quality if you are not driving into clipping and there is no stability issue. Your repeated attacks against something you clearly don’t understand really needs to stop. |
It’s rare that someone will state so clearly that the don’t understand what they are arguing about. As a monument, I will place this here. Hint for George, EPDR is NOT a measure of current loading. It is a measure of equivalent thermal loading. Unless the load is a resistive only, this will ALWAYS happens somewhere other than where the current is at a maximum. georgehifi8,069 posts12-15-2020 6:09pmGeorge - You’ve brought up this notion of EPDR in several class D threads, but haven’t explained how it relates to class D.It relates to any amplifier seeing the low EPDR loading which demands extra current to be delivered from the amp, which Class-D’s don’t do as well as good linear Bi-Polars can. |
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