Find out yourself sunshine, why should bust my ***** trying to explain to a brick wall. There’s plenty to read here.
Educate yourself, 3 pages of it. for you to "try" to understand maybe?
https://www.stereophile.com/reference/707heavy/index.html
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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And there you have it folks. Throw the old dog a bone and he chokes on it. Georgehifi has clearly stated he is unable to explain how EPDR will impact a Class-D amplifiers ability to drive a load. I hate to say I told you so, but I told you so. Hint to the old dog, there is nothing in that article that relates to Class-D. Do you even know how to read an SOA graph? I am going to guess no. You don’t understand this graph: https://www.stereophile.com/images/archivesart/707HL_Fig3.jpg In a Class-D amplifier, the voltage across the device is effectively 0 (or close to it). That means the devices operates on the graph effectively on the left vertical axis at 0 volts. The limitation is pretty much the device current rating. Practically it will be a bit to the right of that as there is dissipation due to RDSon and partial conduction for nanoseconds while switching. Funny you can find tons of time to attempt to bust every Class-D thread and to chase fusers ad-nauseum, but you can't even put a few of your own words together to explain why EPDR could matter to a Class-D amp. I know why you don't. It is because you can't. You would rather bash Ralph from Atmasphere and others not here to defend themselves with falsehoods. That is not honest behavior. |
It seems whenever “Class D” amps are mentioned they brought up a bunch haters. They are relatively cheaper to make and they don’t look as impressive as Class A amps for sure. They typically come in smaller package and are way too light compared to those expensive Class A monsters. Regardless how they sound, they just don’t feel high end enough to some. I have owned Krell Class A monoblocks, BAT tube monoblocks, and Vincent hybrid monoblocks before. Currently I’m breaking in a pair of PS Audio M1200. So far I really like them. Monoblocks sounded better than stereo amps that I agree. |
Please come back and let us know after you’ve lived with them, as from what I’m told they are the ICE 1200 modules like @tweak1 uses (he’ll be happy) but with a tube input buffer. Look at the graph and say if you can hear a disconnect of sound signature with the phase shift above 1khz. ( red trace https://ibb.co/NC7sC8T ) like I can with my big linear phase ML ESL’s with Neolith panels Cheers George |
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